diff options
Diffstat (limited to 'system/database')
56 files changed, 3031 insertions, 3721 deletions
diff --git a/system/database/DB.php b/system/database/DB.php index 96e495515..b28439b29 100755 --- a/system/database/DB.php +++ b/system/database/DB.php @@ -32,9 +32,9 @@ * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/database/ * @param string - * @param bool Determines if active record should be used or not + * @param bool Determines if query builder should be used or not */ -function &DB($params = '', $active_record_override = NULL) +function &DB($params = '', $query_builder_override = NULL) { // Load the DB config file if a DSN string wasn't passed if (is_string($params) && strpos($params, '://') === FALSE) @@ -92,16 +92,12 @@ function &DB($params = '', $active_record_override = NULL) if (isset($dsn['query'])) { parse_str($dsn['query'], $extra); + foreach ($extra as $key => $val) { - // booleans please - if (strtoupper($val) === 'TRUE') - { - $val = TRUE; - } - elseif (strtoupper($val) === 'FALSE') + if (is_string($val) && in_array(strtoupper($val), array('TRUE', 'FALSE', 'NULL'))) { - $val = FALSE; + $val = var_export($val); } $params[$key] = $val; @@ -115,22 +111,22 @@ function &DB($params = '', $active_record_override = NULL) show_error('You have not selected a database type to connect to.'); } - // Load the DB classes. Note: Since the active record class is optional + // Load the DB classes. Note: Since the query builder class is optional // we need to dynamically create a class that extends proper parent class - // based on whether we're using the active record class or not. - if ($active_record_override !== NULL) + // based on whether we're using the query builder class or not. + if ($query_builder_override !== NULL) { - $active_record = $active_record_override; + $query_builder = $query_builder_override; } require_once(BASEPATH.'database/DB_driver.php'); - if ( ! isset($active_record) OR $active_record == TRUE) + if ( ! isset($query_builder) OR $query_builder == TRUE) { - require_once(BASEPATH.'database/DB_active_rec.php'); + require_once(BASEPATH.'database/DB_query_builder.php'); if ( ! class_exists('CI_DB')) { - class CI_DB extends CI_DB_active_record { } + class CI_DB extends CI_DB_query_builder { } } } elseif ( ! class_exists('CI_DB')) @@ -138,7 +134,12 @@ function &DB($params = '', $active_record_override = NULL) class CI_DB extends CI_DB_driver { } } - require_once(BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver.php'); + // Load the DB driver + $driver_file = BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver.php'; + + if ( ! file_exists($driver_file)) show_error('Invalid DB driver'); + + require_once($driver_file); // Instantiate the DB adapter $driver = 'CI_DB_'.$params['dbdriver'].'_driver'; @@ -158,4 +159,4 @@ function &DB($params = '', $active_record_override = NULL) } /* End of file DB.php */ -/* Location: ./system/database/DB.php */
\ No newline at end of file +/* Location: ./system/database/DB.php */ diff --git a/system/database/DB_cache.php b/system/database/DB_cache.php index 58e6968c0..ff942856b 100644 --- a/system/database/DB_cache.php +++ b/system/database/DB_cache.php @@ -177,7 +177,7 @@ class CI_DB_Cache { */ public function delete_all() { - delete_files($this->db->cachedir, TRUE); + delete_files($this->db->cachedir, TRUE, 0, TRUE); } } diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php index 9f1a0b895..ef77b594e 100644 --- a/system/database/DB_driver.php +++ b/system/database/DB_driver.php @@ -99,9 +99,13 @@ abstract class CI_DB_driver { */ public function initialize() { - // If an existing connection resource is available - // there is no need to connect and select the database - if (is_resource($this->conn_id) OR is_object($this->conn_id)) + /* If an established connection is available, then there's + * no need to connect and select the database. + * + * Depending on the database driver, conn_id can be either + * boolean TRUE, a resource or an object. + */ + if ($this->conn_id) { return TRUE; } @@ -188,10 +192,24 @@ abstract class CI_DB_driver { // -------------------------------------------------------------------- /** + * Select database + * + * This is just a dummy method to allow drivers without such + * functionality to not declare it, while others will override it. + * + * @return bool + */ + public function db_select() + { + return TRUE; + } + + // -------------------------------------------------------------------- + + /** * Set client character set * * @param string - * @param string * @return bool */ public function db_set_charset($charset) @@ -283,17 +301,13 @@ abstract class CI_DB_driver { { log_message('error', 'Invalid query: '.$sql); - if ($this->db_debug) - { - return $this->display_error('db_invalid_query'); - } - return FALSE; + return ($this->db_debug) ? $this->display_error('db_invalid_query') : FALSE; } // Verify table prefix and replace if necessary - if ( ($this->dbprefix != '' AND $this->swap_pre != '') AND ($this->dbprefix != $this->swap_pre) ) + if ($this->dbprefix != '' && $this->swap_pre != '' && $this->dbprefix != $this->swap_pre) { - $sql = preg_replace("/(\W)".$this->swap_pre."(\S+?)/", "\\1".$this->dbprefix."\\2", $sql); + $sql = preg_replace('/(\W)'.$this->swap_pre.'(\S+?)/', '\\1'.$this->dbprefix.'\\2', $sql); } // Compile binds if needed @@ -305,15 +319,12 @@ abstract class CI_DB_driver { // Is query caching enabled? If the query is a "read type" // we will load the caching class and return the previously // cached query if it exists - if ($this->cache_on == TRUE AND stristr($sql, 'SELECT')) + if ($this->cache_on == TRUE && stripos($sql, 'SELECT') !== FALSE && $this->_cache_init()) { - if ($this->_cache_init()) + $this->load_rdriver(); + if (FALSE !== ($cache = $this->CACHE->read($sql))) { - $this->load_rdriver(); - if (FALSE !== ($cache = $this->CACHE->read($sql))) - { - return $cache; - } + return $cache; } } @@ -324,7 +335,7 @@ abstract class CI_DB_driver { } // Start the Query Timer - $time_start = list($sm, $ss) = explode(' ', microtime()); + $time_start = microtime(TRUE); // Run the Query if (FALSE === ($this->result_id = $this->simple_query($sql))) @@ -352,25 +363,19 @@ abstract class CI_DB_driver { $this->trans_complete(); // Display errors - return $this->display_error( - array( - 'Error Number: '.$error['code'], - $error['message'], - $sql - ) - ); + return $this->display_error(array('Error Number: '.$error['code'], $error['message'], $sql)); } return FALSE; } // Stop and aggregate the query time results - $time_end = list($em, $es) = explode(' ', microtime()); - $this->benchmark += ($em + $es) - ($sm + $ss); + $time_end = microtime(TRUE); + $this->benchmark += $time_end - $time_start; if ($this->save_queries == TRUE) { - $this->query_times[] = ($em + $es) - ($sm + $ss); + $this->query_times[] = $time_end - $time_start; } // Increment the query counter @@ -382,7 +387,7 @@ abstract class CI_DB_driver { { // If caching is enabled we'll auto-cleanup any // existing files related to this particular URI - if ($this->cache_on == TRUE AND $this->cache_autodel == TRUE AND $this->_cache_init()) + if ($this->cache_on == TRUE && $this->cache_autodel == TRUE && $this->_cache_init()) { $this->CACHE->delete(); } @@ -402,11 +407,9 @@ abstract class CI_DB_driver { $driver = $this->load_rdriver(); $RES = new $driver($this); - $RES->num_rows = $RES->num_rows(); - - // Is query caching enabled? If so, we'll serialize the + // Is query caching enabled? If so, we'll serialize the // result object and save it to a cache file. - if ($this->cache_on == TRUE AND $this->_cache_init()) + if ($this->cache_on == TRUE && $this->_cache_init()) { // We'll create a new instance of the result object // only without the platform specific driver since @@ -415,9 +418,9 @@ abstract class CI_DB_driver { // result object, so we'll have to compile the data // and save it) $CR = new CI_DB_result(); - $CR->num_rows = $RES->num_rows(); $CR->result_object = $RES->result_object(); $CR->result_array = $RES->result_array(); + $CR->num_rows = $RES->num_rows(); // Reset these since cached objects can not utilize resource IDs. $CR->conn_id = NULL; @@ -608,7 +611,8 @@ abstract class CI_DB_driver { // The count of bind should be 1 less then the count of segments // If there are more bind arguments trim it down - if (count($binds) >= count($segments)) { + if (count($binds) >= count($segments)) + { $binds = array_slice($binds, 0, count($segments)-1); } @@ -617,8 +621,7 @@ abstract class CI_DB_driver { $i = 0; foreach ($binds as $bind) { - $result .= $this->escape($bind); - $result .= $segments[++$i]; + $result .= $this->escape($bind).$segments[++$i]; } return $result; @@ -634,7 +637,7 @@ abstract class CI_DB_driver { */ public function is_write_type($sql) { - return (bool) preg_match('/^\s*"?(SET|INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|TRUNCATE|LOAD DATA|COPY|ALTER|RENAME|GRANT|REVOKE|LOCK|UNLOCK|OPTIMIZE|REINDEX)\s+/i', $sql); + return (bool) preg_match('/^\s*"?(SET|INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|TRUNCATE|LOAD DATA|COPY|ALTER|RENAME|GRANT|REVOKE|LOCK|UNLOCK|REINDEX)\s+/i', $sql); } // -------------------------------------------------------------------- @@ -689,15 +692,15 @@ abstract class CI_DB_driver { { if (is_string($str) OR method_exists($str, '__toString')) { - $str = "'".$this->escape_str($str)."'"; + return "'".$this->escape_str($str)."'"; } elseif (is_bool($str)) { - $str = ($str === FALSE) ? 0 : 1; + return ($str === FALSE) ? 0 : 1; } elseif (is_null($str)) { - $str = 'NULL'; + return 'NULL'; } return $str; @@ -733,13 +736,7 @@ abstract class CI_DB_driver { public function primary($table = '') { $fields = $this->list_fields($table); - - if ( ! is_array($fields)) - { - return FALSE; - } - - return current($fields); + return is_array($fields) ? current($fields) : FALSE; } // -------------------------------------------------------------------- @@ -759,35 +756,40 @@ abstract class CI_DB_driver { if (FALSE === ($sql = $this->_list_tables($constrain_by_prefix))) { - if ($this->db_debug) - { - return $this->display_error('db_unsupported_function'); - } - return FALSE; + return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; } - $retval = array(); + $this->data_cache['table_names'] = array(); $query = $this->query($sql); - if ($query->num_rows() > 0) + foreach ($query->result_array() as $row) { - $table = FALSE; - $rows = $query->result_array(); - $key = (($row = current($rows)) && in_array('table_name', array_map('strtolower', array_keys($row)))); - - if ($key) + // Do we know from which column to get the table name? + if ( ! isset($key)) { - $table = array_key_exists('TABLE_NAME', $row) ? 'TABLE_NAME' : 'table_name'; + if (isset($row['table_name'])) + { + $key = 'table_name'; + } + elseif (isset($row['TABLE_NAME'])) + { + $key = 'TABLE_NAME'; + } + else + { + /* We have no other choice but to just get the first element's key. + * Due to array_shift() accepting it's argument by reference, if + * E_STRICT is on, this would trigger a warning. So we'll have to + * assign it first. + */ + $key = array_keys($row); + $key = array_shift($key); + } } - foreach ($rows as $row) - { - $retval[] = ( ! $table) ? current($row) : $row[$table]; - } + $this->data_cache['table_names'][] = $row[$key]; } - $this->data_cache['table_names'] = $retval; - return $this->data_cache['table_names']; } @@ -821,38 +823,45 @@ abstract class CI_DB_driver { if ($table == '') { - if ($this->db_debug) - { - return $this->display_error('db_field_param_missing'); - } - return FALSE; + return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE; } if (FALSE === ($sql = $this->_list_columns($table))) { - if ($this->db_debug) - { - return $this->display_error('db_unsupported_function'); - } - return FALSE; + return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; } $query = $this->query($sql); + $this->data_cache['field_names'][$table] = array(); - $retval = array(); foreach ($query->result_array() as $row) { - if (isset($row['COLUMN_NAME'])) - { - $retval[] = $row['COLUMN_NAME']; - } - else + // Do we know from where to get the column's name? + if ( ! isset($key)) { - $retval[] = current($row); + if (isset($row['column_name'])) + { + $key = 'column_name'; + } + elseif (isset($row['COLUMN_NAME'])) + { + $key = 'COLUMN_NAME'; + } + else + { + /* We have no other choice but to just get the first element's key. + * Due to array_shift() accepting it's argument by reference, if + * E_STRICT is on, this would trigger a warning. So we'll have to + * assign it first. + */ + $key = array_keys($row); + $key = array_shift($key); + } } + + $this->data_cache['field_names'][$table][] = $row[$key]; } - $this->data_cache['field_names'][$table] = $retval; return $this->data_cache['field_names'][$table]; } @@ -867,7 +876,7 @@ abstract class CI_DB_driver { */ public function field_exists($field_name, $table_name) { - return ( ! in_array($field_name, $this->list_fields($table_name))) ? FALSE : TRUE; + return in_array($field_name, $this->list_fields($table_name)); } // -------------------------------------------------------------------- @@ -882,16 +891,48 @@ abstract class CI_DB_driver { { if ($table == '') { - if ($this->db_debug) + return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE; + } + + $query = $this->query($this->_field_data($this->protect_identifiers($table, TRUE, NULL, FALSE))); + return $query->field_data(); + } + + // -------------------------------------------------------------------- + + /** + * Escape the SQL Identifiers + * + * This function escapes column and table names + * + * @param string + * @return string + */ + public function escape_identifiers($item) + { + if ($this->_escape_char == '') + { + return $item; + } + + foreach ($this->_reserved_identifiers as $id) + { + if (strpos($item, '.'.$id) !== FALSE) { - return $this->display_error('db_field_param_missing'); + $item = str_replace('.', $this->_escape_char.'.', $item); + + // remove duplicates if the user already included the escape + return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item); } - return FALSE; } - $query = $this->query($this->_field_data($this->protect_identifiers($table, TRUE, NULL, FALSE))); + if (strpos($item, '.') !== FALSE) + { + $item = str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item); + } - return $query->field_data(); + // remove duplicates if the user already included the escape + return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item.$this->_escape_char); } // -------------------------------------------------------------------- @@ -905,12 +946,11 @@ abstract class CI_DB_driver { */ public function insert_string($table, $data) { - $fields = array(); - $values = array(); + $fields = $values = array(); foreach ($data as $key => $val) { - $fields[] = $this->_escape_identifiers($key); + $fields[] = $this->escape_identifiers($key); $values[] = $this->escape($val); } @@ -979,13 +1019,7 @@ abstract class CI_DB_driver { */ protected function _has_operator($str) { - $str = trim($str); - if ( ! preg_match("/(\s|<|>|!|=|is null|is not null)/i", $str)) - { - return FALSE; - } - - return TRUE; + return (bool) preg_match('/(\s|<|>|!|=|IS NULL|IS NOT NULL)/i', trim($str)); } // -------------------------------------------------------------------- @@ -1008,25 +1042,12 @@ abstract class CI_DB_driver { if ( ! function_exists($function)) { - if ($this->db_debug) - { - return $this->display_error('db_unsupported_function'); - } - return FALSE; + return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; } - else - { - $args = (func_num_args() > 1) ? array_splice(func_get_args(), 1) : null; - if (is_null($args)) - { - return call_user_func($function); - } - else - { - return call_user_func_array($function, $args); - } - } + return (func_num_args() > 1) + ? call_user_func_array($function, array_splice(func_get_args(), 1)) + : call_user_func($function); } // -------------------------------------------------------------------- @@ -1051,8 +1072,7 @@ abstract class CI_DB_driver { */ public function cache_on() { - $this->cache_on = TRUE; - return TRUE; + return $this->cache_on = TRUE; } // -------------------------------------------------------------------- @@ -1064,8 +1084,7 @@ abstract class CI_DB_driver { */ public function cache_off() { - $this->cache_on = FALSE; - return FALSE; + return $this->cache_on = FALSE; } @@ -1078,11 +1097,9 @@ abstract class CI_DB_driver { */ public function cache_delete($segment_one = '', $segment_two = '') { - if ( ! $this->_cache_init()) - { - return FALSE; - } - return $this->CACHE->delete($segment_one, $segment_two); + return ($this->_cache_init()) + ? $this->CACHE->delete($segment_one, $segment_two) + : FALSE; } // -------------------------------------------------------------------- @@ -1094,12 +1111,9 @@ abstract class CI_DB_driver { */ public function cache_delete_all() { - if ( ! $this->_cache_init()) - { - return FALSE; - } - - return $this->CACHE->delete_all(); + return ($this->_cache_init()) + ? $this->CACHE->delete_all() + : FALSE; } // -------------------------------------------------------------------- @@ -1111,18 +1125,17 @@ abstract class CI_DB_driver { */ protected function _cache_init() { - if (is_object($this->CACHE) AND class_exists('CI_DB_Cache')) + if (class_exists('CI_DB_Cache')) { - return TRUE; - } - - if ( ! class_exists('CI_DB_Cache')) - { - if ( ! @include(BASEPATH.'database/DB_cache.php')) + if (is_object($this->CACHE)) { - return $this->cache_off(); + return TRUE; } } + elseif ( ! @include_once(BASEPATH.'database/DB_cache.php')) + { + return $this->cache_off(); + } $this->CACHE = new CI_DB_Cache($this); // pass db object to support multiple db connections and returned db objects return TRUE; @@ -1137,11 +1150,11 @@ abstract class CI_DB_driver { */ public function close() { - if (is_resource($this->conn_id) OR is_object($this->conn_id)) + if ($this->conn_id) { $this->_close($this->conn_id); + $this->conn_id = FALSE; } - $this->conn_id = FALSE; } // -------------------------------------------------------------------- @@ -1173,9 +1186,7 @@ abstract class CI_DB_driver { // Find the most likely culprit of the error by going through // the backtrace until the source file is no longer in the // database folder. - $trace = debug_backtrace(); - foreach ($trace as $call) { if (isset($call['file']) && strpos($call['file'], BASEPATH.'database') === FALSE) @@ -1183,7 +1194,6 @@ abstract class CI_DB_driver { // Found it - use a relative path for safety $message[] = 'Filename: '.str_replace(array(BASEPATH, APPPATH), '', $call['file']); $message[] = 'Line Number: '.$call['line']; - break; } } @@ -1198,10 +1208,10 @@ abstract class CI_DB_driver { /** * Protect Identifiers * - * This function is used extensively by the Active Record class, and by + * This function is used extensively by the Query Builder class, and by * a couple functions in this class. * It takes a column or table name (optionally with an alias) and inserts - * the table prefix onto it. Some logic is necessary in order to deal with + * the table prefix onto it. Some logic is necessary in order to deal with * column names that include the path. Consider a query like this: * * SELECT * FROM hostname.database.table.column AS c FROM hostname.database.table @@ -1244,12 +1254,15 @@ abstract class CI_DB_driver { // If the item has an alias declaration we remove it and set it aside. // Basically we remove everything to the right of the first space - $alias = ''; if (strpos($item, ' ') !== FALSE) { - $alias = strstr($item, " "); + $alias = strstr($item, ' '); $item = substr($item, 0, - strlen($alias)); } + else + { + $alias = ''; + } // This is basically a bug fix for queries that use MAX, MIN, etc. // If a parenthesis is found we know that we do not need to @@ -1270,7 +1283,7 @@ abstract class CI_DB_driver { // Does the first segment of the exploded item match // one of the aliases previously identified? If so, // we have nothing more to do other than escape the item - if (in_array($parts[0], $this->ar_aliased_tables)) + if (in_array($parts[0], $this->qb_aliased_tables)) { if ($protect_identifiers === TRUE) { @@ -1278,12 +1291,13 @@ abstract class CI_DB_driver { { if ( ! in_array($val, $this->_reserved_identifiers)) { - $parts[$key] = $this->_escape_identifiers($val); + $parts[$key] = $this->escape_identifiers($val); } } $item = implode('.', $parts); } + return $item.$alias; } @@ -1318,13 +1332,12 @@ abstract class CI_DB_driver { } // Verify table prefix and replace if necessary - if ($this->swap_pre != '' && strncmp($parts[$i], $this->swap_pre, strlen($this->swap_pre)) === 0) + if ($this->swap_pre != '' && strpos($parts[$i], $this->swap_pre) === 0) { - $parts[$i] = preg_replace("/^".$this->swap_pre."(\S+?)/", $this->dbprefix."\\1", $parts[$i]); + $parts[$i] = preg_replace('/^'.$this->swap_pre.'(\S+?)/', $this->dbprefix.'\\1', $parts[$i]); } - // We only add the table prefix if it does not already exist - if (substr($parts[$i], 0, strlen($this->dbprefix)) != $this->dbprefix) + elseif (strpos($parts[$i], $this->dbprefix) !== 0) { $parts[$i] = $this->dbprefix.$parts[$i]; } @@ -1335,7 +1348,7 @@ abstract class CI_DB_driver { if ($protect_identifiers === TRUE) { - $item = $this->_escape_identifiers($item); + $item = $this->escape_identifiers($item); } return $item.$alias; @@ -1345,21 +1358,20 @@ abstract class CI_DB_driver { if ($this->dbprefix != '') { // Verify table prefix and replace if necessary - if ($this->swap_pre != '' && strncmp($item, $this->swap_pre, strlen($this->swap_pre)) === 0) + if ($this->swap_pre != '' && strpos($item, $this->swap_pre) === 0) { - $item = preg_replace("/^".$this->swap_pre."(\S+?)/", $this->dbprefix."\\1", $item); + $item = preg_replace('/^'.$this->swap_pre.'(\S+?)/', $this->dbprefix.'\\1', $item); } - // Do we prefix an item with no segments? - if ($prefix_single == TRUE AND substr($item, 0, strlen($this->dbprefix)) != $this->dbprefix) + elseif ($prefix_single == TRUE && strpos($item, $this->dbprefix) !== 0) { $item = $this->dbprefix.$item; } } - if ($protect_identifiers === TRUE AND ! in_array($item, $this->_reserved_identifiers)) + if ($protect_identifiers === TRUE && ! in_array($item, $this->_reserved_identifiers)) { - $item = $this->_escape_identifiers($item); + $item = $this->escape_identifiers($item); } return $item.$alias; @@ -1368,15 +1380,17 @@ abstract class CI_DB_driver { // -------------------------------------------------------------------- /** - * Dummy method that allows Active Record class to be disabled + * Dummy method that allows Query Builder class to be disabled * * This function is used extensively by every db driver. * * @return void */ - abstract protected function _reset_select(); + protected function _reset_select() + { + } } /* End of file DB_driver.php */ -/* Location: ./system/database/DB_driver.php */
\ No newline at end of file +/* Location: ./system/database/DB_driver.php */ diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php index 34c502a99..a519575f0 100644 --- a/system/database/DB_forge.php +++ b/system/database/DB_forge.php @@ -25,10 +25,8 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** - * Database Utility Class + * Database Forge Class * * @category Database * @author EllisLab Dev Team @@ -41,6 +39,12 @@ abstract class CI_DB_forge { public $primary_keys = array(); public $db_char_set = ''; + // Platform specific SQL strings + protected $_create_database = 'CREATE DATABASE %s'; + protected $_drop_database = 'DROP DATABASE %s'; + protected $_drop_table = 'DROP TABLE IF EXISTS %s'; + protected $_rename_table = 'ALTER TABLE %s RENAME TO %s'; + public function __construct() { // Assign the main database object to $this->db @@ -59,8 +63,16 @@ abstract class CI_DB_forge { */ public function create_database($db_name) { - $sql = $this->_create_database($db_name); - return is_bool($sql) ? $sql : $this->db->query($sql); + if ($this->_create_database === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + elseif ( ! $this->db->query(sprintf($this->_create_database, $db_name, $this->db->char_set, $this->db->dbcollat))) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + return TRUE; } // -------------------------------------------------------------------- @@ -73,8 +85,21 @@ abstract class CI_DB_forge { */ public function drop_database($db_name) { - $sql = $this->_drop_database($db_name); - return is_bool($sql) ? $sql : $this->db->query($sql); + if ($db_name == '') + { + show_error('A table name is required for that operation.'); + return FALSE; + } + elseif ($this->_drop_database === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + elseif ( ! $this->db->query(sprintf($this->_drop_database, $db_name))) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + return TRUE; } // -------------------------------------------------------------------- @@ -197,8 +222,16 @@ abstract class CI_DB_forge { */ public function drop_table($table_name) { - $sql = $this->_drop_table($this->db->dbprefix.$table_name); - return is_bool($sql) ? $sql : $this->db->query($sql); + if ($table_name == '') + { + return ($this->db->db_debug) ? $this->db->display_error('db_table_name_required') : FALSE; + } + elseif ($this->_drop_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + + return $this->db->query(sprintf($this->_drop_table, $this->db->escape_identifiers($this->db->dbprefix.$table_name))); } // -------------------------------------------------------------------- @@ -215,9 +248,17 @@ abstract class CI_DB_forge { if ($table_name == '' OR $new_table_name == '') { show_error('A table name is required for that operation.'); + return FALSE; + } + elseif ($this->_rename_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; } - return $this->db->query($this->_rename_table($this->db->dbprefix.$table_name, $this->db->dbprefix.$new_table_name)); + return $this->db->query(sprintf($this->_rename_table, + $this->db->escape_identifiers($this->db->dbprefix.$table_name), + $this->db->escape_identifiers($this->db->dbprefix.$new_table_name)) + ); } // -------------------------------------------------------------------- diff --git a/system/database/DB_active_rec.php b/system/database/DB_query_builder.php index b324226ab..d0af66de1 100644 --- a/system/database/DB_active_rec.php +++ b/system/database/DB_query_builder.php @@ -26,9 +26,9 @@ */ /** - * Active Record Class + * Query Builder Class * - * This is the platform-independent base Active Record implementation class. + * This is the platform-independent base Query Builder implementation class. * * @package CodeIgniter * @subpackage Drivers @@ -36,46 +36,47 @@ * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/database/ */ -abstract class CI_DB_active_record extends CI_DB_driver { + +abstract class CI_DB_query_builder extends CI_DB_driver { protected $return_delete_sql = FALSE; protected $reset_delete_data = FALSE; - protected $ar_select = array(); - protected $ar_distinct = FALSE; - protected $ar_from = array(); - protected $ar_join = array(); - protected $ar_where = array(); - protected $ar_like = array(); - protected $ar_groupby = array(); - protected $ar_having = array(); - protected $ar_keys = array(); - protected $ar_limit = FALSE; - protected $ar_offset = FALSE; - protected $ar_order = FALSE; - protected $ar_orderby = array(); - protected $ar_set = array(); - protected $ar_wherein = array(); - protected $ar_aliased_tables = array(); - protected $ar_store_array = array(); - protected $ar_where_group_started = FALSE; - protected $ar_where_group_count = 0; - - // Active Record Caching variables - protected $ar_caching = FALSE; - protected $ar_cache_exists = array(); - protected $ar_cache_select = array(); - protected $ar_cache_from = array(); - protected $ar_cache_join = array(); - protected $ar_cache_where = array(); - protected $ar_cache_like = array(); - protected $ar_cache_groupby = array(); - protected $ar_cache_having = array(); - protected $ar_cache_orderby = array(); - protected $ar_cache_set = array(); - - protected $ar_no_escape = array(); - protected $ar_cache_no_escape = array(); + protected $qb_select = array(); + protected $qb_distinct = FALSE; + protected $qb_from = array(); + protected $qb_join = array(); + protected $qb_where = array(); + protected $qb_like = array(); + protected $qb_groupby = array(); + protected $qb_having = array(); + protected $qb_keys = array(); + protected $qb_limit = FALSE; + protected $qb_offset = FALSE; + protected $qb_order = FALSE; + protected $qb_orderby = array(); + protected $qb_set = array(); + protected $qb_wherein = array(); + protected $qb_aliased_tables = array(); + protected $qb_store_array = array(); + protected $qb_where_group_started = FALSE; + protected $qb_where_group_count = 0; + + // Query Builder Caching variables + protected $qb_caching = FALSE; + protected $qb_cache_exists = array(); + protected $qb_cache_select = array(); + protected $qb_cache_from = array(); + protected $qb_cache_join = array(); + protected $qb_cache_where = array(); + protected $qb_cache_like = array(); + protected $qb_cache_groupby = array(); + protected $qb_cache_having = array(); + protected $qb_cache_orderby = array(); + protected $qb_cache_set = array(); + + protected $qb_no_escape = array(); + protected $qb_cache_no_escape = array(); /** * Select @@ -98,14 +99,14 @@ abstract class CI_DB_active_record extends CI_DB_driver { if ($val != '') { - $this->ar_select[] = $val; - $this->ar_no_escape[] = $escape; + $this->qb_select[] = $val; + $this->qb_no_escape[] = $escape; - if ($this->ar_caching === TRUE) + if ($this->qb_caching === TRUE) { - $this->ar_cache_select[] = $val; - $this->ar_cache_exists[] = 'select'; - $this->ar_cache_no_escape[] = $escape; + $this->qb_cache_select[] = $val; + $this->qb_cache_exists[] = 'select'; + $this->qb_cache_no_escape[] = $escape; } } } @@ -211,13 +212,14 @@ abstract class CI_DB_active_record extends CI_DB_driver { } $sql = $this->protect_identifiers($type.'('.trim($select).')').' AS '.$this->protect_identifiers(trim($alias)); - $this->ar_select[] = $sql; - $this->ar_no_escape[] = NULL; + + $this->qb_select[] = $sql; + $this->qb_no_escape[] = NULL; - if ($this->ar_caching === TRUE) + if ($this->qb_caching === TRUE) { - $this->ar_cache_select[] = $sql; - $this->ar_cache_exists[] = 'select'; + $this->qb_cache_select[] = $sql; + $this->qb_cache_exists[] = 'select'; } return $this; @@ -254,7 +256,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { */ public function distinct($val = TRUE) { - $this->ar_distinct = (is_bool($val)) ? $val : TRUE; + $this->qb_distinct = (is_bool($val)) ? $val : TRUE; return $this; } @@ -278,12 +280,13 @@ abstract class CI_DB_active_record extends CI_DB_driver { { $v = trim($v); $this->_track_aliases($v); - $v = $this->ar_from[] = $this->protect_identifiers($v, TRUE, NULL, FALSE); - if ($this->ar_caching === TRUE) + $this->qb_from[] = $v = $this->protect_identifiers($v, TRUE, NULL, FALSE); + + if ($this->qb_caching === TRUE) { - $this->ar_cache_from[] = $v; - $this->ar_cache_exists[] = 'from'; + $this->qb_cache_from[] = $v; + $this->qb_cache_exists[] = 'from'; } } } @@ -292,14 +295,15 @@ abstract class CI_DB_active_record extends CI_DB_driver { $val = trim($val); // Extract any aliases that might exist. We use this information - // in the _protect_identifiers to know whether to add a table prefix + // in the protect_identifiers to know whether to add a table prefix $this->_track_aliases($val); - $this->ar_from[] = $val = $this->protect_identifiers($val, TRUE, NULL, FALSE); - if ($this->ar_caching === TRUE) + $this->qb_from[] = $val = $this->protect_identifiers($val, TRUE, NULL, FALSE); + + if ($this->qb_caching === TRUE) { - $this->ar_cache_from[] = $val; - $this->ar_cache_exists[] = 'from'; + $this->qb_cache_from[] = $val; + $this->qb_cache_exists[] = 'from'; } } } @@ -336,7 +340,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { } // Extract any aliases that might exist. We use this information - // in the _protect_identifiers to know whether to add a table prefix + // in the protect_identifiers to know whether to add a table prefix $this->_track_aliases($table); // Strip apart the condition and protect the identifiers @@ -346,12 +350,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { } // Assemble the JOIN statement - $this->ar_join[] = $join = $type.'JOIN '.$this->protect_identifiers($table, TRUE, NULL, FALSE).' ON '.$cond; + $this->qb_join[] = $join = $type.'JOIN '.$this->protect_identifiers($table, TRUE, NULL, FALSE).' ON '.$cond; - if ($this->ar_caching === TRUE) + if ($this->qb_caching === TRUE) { - $this->ar_cache_join[] = $join; - $this->ar_cache_exists[] = 'join'; + $this->qb_cache_join[] = $join; + $this->qb_cache_exists[] = 'join'; } return $this; @@ -420,7 +424,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { foreach ($key as $k => $v) { - $prefix = (count($this->ar_where) === 0 && count($this->ar_cache_where) === 0) ? '' : $type; + $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) ? '' : $type; if (is_null($v) && ! $this->_has_operator($k)) { @@ -446,11 +450,11 @@ abstract class CI_DB_active_record extends CI_DB_driver { $k = $this->protect_identifiers($k, FALSE, $escape); } - $this->ar_where[] = $prefix.$k.$v; - if ($this->ar_caching === TRUE) + $this->qb_where[] = $prefix.$k.$v; + if ($this->qb_caching === TRUE) { - $this->ar_cache_where[] = $prefix.$k.$v; - $this->ar_cache_exists[] = 'where'; + $this->qb_cache_where[] = $prefix.$k.$v; + $this->qb_cache_exists[] = 'where'; } } @@ -557,20 +561,20 @@ abstract class CI_DB_active_record extends CI_DB_driver { foreach ($values as $value) { - $this->ar_wherein[] = $this->escape($value); + $this->qb_wherein[] = $this->escape($value); } - $prefix = (count($this->ar_where) === 0) ? '' : $type; - $this->ar_where[] = $where_in = $prefix.$this->protect_identifiers($key).$not.' IN ('.implode(', ', $this->ar_wherein).') '; + $prefix = (count($this->qb_where) === 0) ? '' : $type; + $this->qb_where[] = $where_in = $prefix.$this->protect_identifiers($key).$not.' IN ('.implode(', ', $this->qb_wherein).') '; - if ($this->ar_caching === TRUE) + if ($this->qb_caching === TRUE) { - $this->ar_cache_where[] = $where_in; - $this->ar_cache_exists[] = 'where'; + $this->qb_cache_where[] = $where_in; + $this->qb_cache_exists[] = 'where'; } // reset the array for multiple calls - $this->ar_wherein = array(); + $this->qb_wherein = array(); return $this; } @@ -666,7 +670,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { foreach ($field as $k => $v) { $k = $this->protect_identifiers($k); - $prefix = (count($this->ar_like) === 0) ? '' : $type; + $prefix = (count($this->qb_like) === 0) ? '' : $type; $v = $this->escape_like_str($v); if ($side === 'none') @@ -692,11 +696,11 @@ abstract class CI_DB_active_record extends CI_DB_driver { $like_statement = $like_statement.sprintf($this->_like_escape_str, $this->_like_escape_chr); } - $this->ar_like[] = $like_statement; - if ($this->ar_caching === TRUE) + $this->qb_like[] = $like_statement; + if ($this->qb_caching === TRUE) { - $this->ar_cache_like[] = $like_statement; - $this->ar_cache_exists[] = 'like'; + $this->qb_cache_like[] = $like_statement; + $this->qb_cache_exists[] = 'like'; } } @@ -716,13 +720,14 @@ abstract class CI_DB_active_record extends CI_DB_driver { public function group_start($not = '', $type = 'AND ') { $type = $this->_group_get_type($type); - $this->ar_where_group_started = TRUE; - $prefix = (count($this->ar_where) === 0 && count($this->ar_cache_where) === 0) ? '' : $type; - $this->ar_where[] = $value = $prefix.$not.str_repeat(' ', ++$this->ar_where_group_count).' ('; - if ($this->ar_caching) + $this->qb_where_group_started = TRUE; + $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) ? '' : $type; + $this->qb_where[] = $value = $prefix.$not.str_repeat(' ', ++$this->qb_where_group_count).' ('; + + if ($this->qb_caching) { - $this->ar_cache_where[] = $value; + $this->qb_cache_where[] = $value; } return $this; @@ -773,12 +778,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { */ public function group_end() { - $this->ar_where_group_started = FALSE; - $this->ar_where[] = $value = str_repeat(' ', $this->ar_where_group_count--) . ')'; + $this->qb_where_group_started = FALSE; + $this->qb_where[] = $value = str_repeat(' ', $this->qb_where_group_count--) . ')'; - if ($this->ar_caching) + if ($this->qb_caching) { - $this->ar_cache_where[] = $value; + $this->qb_cache_where[] = $value; } return $this; @@ -796,10 +801,10 @@ abstract class CI_DB_active_record extends CI_DB_driver { */ protected function _group_get_type($type) { - if ($this->ar_where_group_started) + if ($this->qb_where_group_started) { $type = ''; - $this->ar_where_group_started = FALSE; + $this->qb_where_group_started = FALSE; } return $type; @@ -826,12 +831,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { if ($val != '') { - $this->ar_groupby[] = $val = $this->protect_identifiers($val); + $this->qb_groupby[] = $val = $this->protect_identifiers($val); - if ($this->ar_caching === TRUE) + if ($this->qb_caching === TRUE) { - $this->ar_cache_groupby[] = $val; - $this->ar_cache_exists[] = 'groupby'; + $this->qb_cache_groupby[] = $val; + $this->qb_cache_exists[] = 'groupby'; } } } @@ -891,7 +896,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { foreach ($key as $k => $v) { - $prefix = (count($this->ar_having) === 0) ? '' : $type; + $prefix = (count($this->qb_having) === 0) ? '' : $type; if ($escape === TRUE) { @@ -908,11 +913,11 @@ abstract class CI_DB_active_record extends CI_DB_driver { $v = ' '.$this->escape($v); } - $this->ar_having[] = $prefix.$k.$v; - if ($this->ar_caching === TRUE) + $this->qb_having[] = $prefix.$k.$v; + if ($this->qb_caching === TRUE) { - $this->ar_cache_having[] = $prefix.$k.$v; - $this->ar_cache_exists[] = 'having'; + $this->qb_cache_having[] = $prefix.$k.$v; + $this->qb_cache_exists[] = 'having'; } } @@ -948,7 +953,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { foreach (explode(',', $orderby) as $part) { $part = trim($part); - if ( ! in_array($part, $this->ar_aliased_tables)) + if ( ! in_array($part, $this->qb_aliased_tables)) { $part = $this->protect_identifiers(trim($part)); } @@ -966,12 +971,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { } } - $this->ar_orderby[] = $orderby_statement = $orderby.$direction; + $this->qb_orderby[] = $orderby_statement = $orderby.$direction; - if ($this->ar_caching === TRUE) + if ($this->qb_caching === TRUE) { - $this->ar_cache_orderby[] = $orderby_statement; - $this->ar_cache_exists[] = 'orderby'; + $this->qb_cache_orderby[] = $orderby_statement; + $this->qb_cache_exists[] = 'orderby'; } return $this; @@ -988,11 +993,11 @@ abstract class CI_DB_active_record extends CI_DB_driver { */ public function limit($value, $offset = NULL) { - $this->ar_limit = (int) $value; + $this->qb_limit = (int) $value; if ( ! is_null($offset)) { - $this->ar_offset = (int) $offset; + $this->qb_offset = (int) $offset; } return $this; @@ -1008,7 +1013,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { */ public function offset($offset) { - $this->ar_offset = (int) $offset; + $this->qb_offset = (int) $offset; return $this; } @@ -1035,11 +1040,11 @@ abstract class CI_DB_active_record extends CI_DB_driver { { if ($escape === FALSE) { - $this->ar_set[$this->protect_identifiers($k)] = $v; + $this->qb_set[$this->protect_identifiers($k)] = $v; } else { - $this->ar_set[$this->protect_identifiers($k, FALSE, TRUE)] = $this->escape($v); + $this->qb_set[$this->protect_identifiers($k, FALSE, TRUE)] = $this->escape($v); } } @@ -1054,7 +1059,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { * Compiles a SELECT query string and returns the sql. * * @param string the table name to select from (optional) - * @param bool TRUE: resets AR values; FALSE: leave AR vaules alone + * @param bool TRUE: resets QB values; FALSE: leave QB vaules alone * @return string */ public function get_compiled_select($table = '', $reset = TRUE) @@ -1110,7 +1115,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { * "Count All Results" query * * Generates a platform-specific query string that counts all records - * returned by an Active Record query. + * returned by an Query Builder query. * * @param string * @return string @@ -1186,7 +1191,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { $this->set_insert_batch($set); } - if (count($this->ar_set) === 0) + if (count($this->qb_set) === 0) { if ($this->db_debug) { @@ -1198,18 +1203,18 @@ abstract class CI_DB_active_record extends CI_DB_driver { if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } - $table = $this->ar_from[0]; + $table = $this->qb_from[0]; } // Batch this baby - for ($i = 0, $total = count($this->ar_set); $i < $total; $i += 100) + for ($i = 0, $total = count($this->qb_set); $i < $total; $i += 100) { - $this->query($this->_insert_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), $this->ar_keys, array_slice($this->ar_set, $i, 100))); + $this->query($this->_insert_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), $this->qb_keys, array_slice($this->qb_set, $i, 100))); } $this->_reset_write(); @@ -1219,6 +1224,23 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** + * Insert_batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + protected function _insert_batch($table, $keys, $values) + { + return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES '.implode(', ', $values); + } + + // -------------------------------------------------------------------- + + /** * The "set_insert_batch" function. Allows key/value pairs to be set for batch inserts * * @param mixed @@ -1235,15 +1257,16 @@ abstract class CI_DB_active_record extends CI_DB_driver { $key = array($key => $value); } - $keys = array_keys(current($key)); + $keys = array_keys($this->_object_to_array(current($key))); sort($keys); foreach ($key as $row) { + $row = $this->_object_to_array($row); if (count(array_diff($keys, array_keys($row))) > 0 OR count(array_diff(array_keys($row), $keys)) > 0) { // batch function above returns an error on an empty array - $this->ar_set[] = array(); + $this->qb_set[] = array(); return; } @@ -1251,7 +1274,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { if ($escape === FALSE) { - $this->ar_set[] = '('.implode(',', $row).')'; + $this->qb_set[] = '('.implode(',', $row).')'; } else { @@ -1261,13 +1284,13 @@ abstract class CI_DB_active_record extends CI_DB_driver { $clean[] = $this->escape($value); } - $this->ar_set[] = '('.implode(',', $clean).')'; + $this->qb_set[] = '('.implode(',', $clean).')'; } } foreach ($keys as $k) { - $this->ar_keys[] = $this->protect_identifiers($k); + $this->qb_keys[] = $this->protect_identifiers($k); } return $this; @@ -1281,7 +1304,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { * Compiles an insert query and returns the sql * * @param string the table to insert into - * @param bool TRUE: reset AR values; FALSE: leave AR values alone + * @param bool TRUE: reset QB values; FALSE: leave QB values alone * @return string */ public function get_compiled_insert($table = '', $reset = TRUE) @@ -1292,9 +1315,11 @@ abstract class CI_DB_active_record extends CI_DB_driver { } $sql = $this->_insert( - $this->protect_identifiers($this->ar_from[0], TRUE, NULL, FALSE), - array_keys($this->ar_set), - array_values($this->ar_set) + $this->protect_identifiers( + $this->qb_from[0], TRUE, NULL, FALSE + ), + array_keys($this->qb_set), + array_values($this->qb_set) ); if ($reset === TRUE) @@ -1329,9 +1354,11 @@ abstract class CI_DB_active_record extends CI_DB_driver { } $sql = $this->_insert( - $this->protect_identifiers($this->ar_from[0], TRUE, NULL, FALSE), - array_keys($this->ar_set), - array_values($this->ar_set) + $this->protect_identifiers( + $this->qb_from[0], TRUE, NULL, FALSE + ), + array_keys($this->qb_set), + array_values($this->qb_set) ); $this->_reset_write(); @@ -1341,6 +1368,23 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** + * Insert statement + * + * Generates a platform-specific insert string from the supplied data + * + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + protected function _insert($table, $keys, $values) + { + return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; + } + + // -------------------------------------------------------------------- + + /** * Validate Insert * * This method is used by both insert() and get_compiled_insert() to @@ -1352,21 +1396,21 @@ abstract class CI_DB_active_record extends CI_DB_driver { */ protected function _validate_insert($table = '') { - if (count($this->ar_set) === 0) + if (count($this->qb_set) === 0) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } } else { - $this->ar_from[0] = $table; + $this->qb_from[0] = $table; } return TRUE; @@ -1390,22 +1434,23 @@ abstract class CI_DB_active_record extends CI_DB_driver { $this->set($set); } - if (count($this->ar_set) === 0) + if (count($this->qb_set) === 0) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } - $table = $this->ar_from[0]; + $table = $this->qb_from[0]; } - $sql = $this->_replace($this->protect_identifiers($table, TRUE, NULL, FALSE), array_keys($this->ar_set), array_values($this->ar_set)); + $sql = $this->_replace($this->protect_identifiers($table, TRUE, NULL, FALSE), array_keys($this->qb_set), array_values($this->qb_set)); + $this->_reset_write(); return $this->query($sql); } @@ -1413,12 +1458,29 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** + * Replace statement + * + * Generates a platform-specific replace string from the supplied data + * + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + protected function _replace($table, $keys, $values) + { + return 'REPLACE INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; + } + + // -------------------------------------------------------------------- + + /** * Get UPDATE query string * * Compiles an update query and returns the sql * * @param string the table to update - * @param bool TRUE: reset AR values; FALSE: leave AR values alone + * @param bool TRUE: reset QB values; FALSE: leave QB values alone * @return string */ public function get_compiled_update($table = '', $reset = TRUE) @@ -1431,7 +1493,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { return FALSE; } - $sql = $this->_update($this->protect_identifiers($this->ar_from[0], TRUE, NULL, FALSE), $this->ar_set, $this->ar_where, $this->ar_orderby, $this->ar_limit); + $sql = $this->_update($this->protect_identifiers($this->qb_from[0], TRUE, NULL, FALSE), $this->qb_set, $this->qb_where, $this->qb_orderby, $this->qb_limit); if ($reset === TRUE) { @@ -1478,7 +1540,8 @@ abstract class CI_DB_active_record extends CI_DB_driver { $this->limit($limit); } - $sql = $this->_update($this->protect_identifiers($this->ar_from[0], TRUE, NULL, FALSE), $this->ar_set, $this->ar_where, $this->ar_orderby, $this->ar_limit, $this->ar_like); + $sql = $this->_update($this->protect_identifiers($this->qb_from[0], TRUE, NULL, FALSE), $this->qb_set, $this->qb_where, $this->qb_orderby, $this->qb_limit, $this->qb_like); + $this->_reset_write(); return $this->query($sql); } @@ -1486,6 +1549,41 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string the table name + * @param array the update data + * @param array the where clause + * @param array the orderby clause + * @param array the limit clause + * @param array the like clause + * @return string + */ + protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + { + foreach ($values as $key => $val) + { + $valstr[] = $key.' = '.$val; + } + + $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); + + if ( ! empty($like)) + { + $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); + } + + return 'UPDATE '.$table.' SET '.implode(', ', $valstr) + .$where + .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : '') + .($limit ? ' LIMIT '.$limit : ''); + } + + // -------------------------------------------------------------------- + + /** * Validate Update * * This method is used by both update() and get_compiled_update() to @@ -1497,21 +1595,21 @@ abstract class CI_DB_active_record extends CI_DB_driver { */ protected function _validate_update($table = '') { - if (count($this->ar_set) == 0) + if (count($this->qb_set) == 0) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } } else { - $this->ar_from[0] = $table; + $this->qb_from[0] = $table; } return TRUE; @@ -1544,25 +1642,25 @@ abstract class CI_DB_active_record extends CI_DB_driver { $this->set_update_batch($set, $index); } - if (count($this->ar_set) === 0) + if (count($this->qb_set) === 0) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } - $table = $this->ar_from[0]; + $table = $this->qb_from[0]; } // Batch this baby - for ($i = 0, $total = count($this->ar_set); $i < $total; $i += 100) + for ($i = 0, $total = count($this->qb_set); $i < $total; $i += 100) { - $this->query($this->_update_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), array_slice($this->ar_set, $i, 100), $this->protect_identifiers($index), $this->ar_where)); + $this->query($this->_update_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), array_slice($this->qb_set, $i, 100), $this->protect_identifiers($index), $this->qb_where)); } $this->_reset_write(); @@ -1611,7 +1709,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { return $this->display_error('db_batch_missing_index'); } - $this->ar_set[] = $clean; + $this->qb_set[] = $clean; } return $this; @@ -1631,12 +1729,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { { if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } - $table = $this->ar_from[0]; + $table = $this->qb_from[0]; } else { @@ -1664,12 +1762,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { { if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } - $table = $this->ar_from[0]; + $table = $this->qb_from[0]; } else { @@ -1684,12 +1782,30 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' + * + * @param string the table name + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE '.$table; + } + + // -------------------------------------------------------------------- + + /** * Get DELETE query string * * Compiles a delete query string and returns the sql * * @param string the table to delete from - * @param bool TRUE: reset AR values; FALSE: leave AR values alone + * @param bool TRUE: reset QB values; FALSE: leave QB values alone * @return string */ public function get_compiled_delete($table = '', $reset = TRUE) @@ -1720,12 +1836,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { if ($table == '') { - if ( ! isset($this->ar_from[0])) + if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } - $table = $this->ar_from[0]; + $table = $this->qb_from[0]; } elseif (is_array($table)) { @@ -1752,12 +1868,12 @@ abstract class CI_DB_active_record extends CI_DB_driver { $this->limit($limit); } - if (count($this->ar_where) === 0 && count($this->ar_wherein) === 0 && count($this->ar_like) === 0) + if (count($this->qb_where) === 0 && count($this->qb_wherein) === 0 && count($this->qb_like) === 0) { return ($this->db_debug) ? $this->display_error('db_del_must_use_where') : FALSE; } - $sql = $this->_delete($table, $this->ar_where, $this->ar_like, $this->ar_limit); + $sql = $this->_delete($table, $this->qb_where, $this->qb_like, $this->qb_limit); if ($reset_data) { $this->_reset_write(); @@ -1769,6 +1885,31 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string the table name + * @param array the where clause + * @param array the like clause + * @param string the limit clause + * @return string + */ + protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + { + $conditions = array(); + + empty($where) OR $conditions[] = implode(' ', $where); + empty($like) OR $conditions[] = implode(' ', $like); + + return 'DELETE FROM '.$table + .(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : '') + .($limit ? ' LIMIT '.$limit : ''); + } + + // -------------------------------------------------------------------- + + /** * DB Prefix * * Prepends a database prefix if one exists in configuration @@ -1839,9 +1980,9 @@ abstract class CI_DB_active_record extends CI_DB_driver { $table = trim(strrchr($table, ' ')); // Store the alias, if it doesn't already exist - if ( ! in_array($table, $this->ar_aliased_tables)) + if ( ! in_array($table, $this->qb_aliased_tables)) { - $this->ar_aliased_tables[] = $table; + $this->qb_aliased_tables[] = $table; } } } @@ -1868,9 +2009,9 @@ abstract class CI_DB_active_record extends CI_DB_driver { } else { - $sql = ( ! $this->ar_distinct) ? 'SELECT ' : 'SELECT DISTINCT '; + $sql = ( ! $this->qb_distinct) ? 'SELECT ' : 'SELECT DISTINCT '; - if (count($this->ar_select) === 0) + if (count($this->qb_select) === 0) { $sql .= '*'; } @@ -1879,73 +2020,73 @@ abstract class CI_DB_active_record extends CI_DB_driver { // Cycle through the "select" portion of the query and prep each column name. // The reason we protect identifiers here rather then in the select() function // is because until the user calls the from() function we don't know if there are aliases - foreach ($this->ar_select as $key => $val) + foreach ($this->qb_select as $key => $val) { - $no_escape = isset($this->ar_no_escape[$key]) ? $this->ar_no_escape[$key] : NULL; - $this->ar_select[$key] = $this->protect_identifiers($val, FALSE, $no_escape); + $no_escape = isset($this->qb_no_escape[$key]) ? $this->qb_no_escape[$key] : NULL; + $this->qb_select[$key] = $this->protect_identifiers($val, FALSE, $no_escape); } - $sql .= implode(', ', $this->ar_select); + $sql .= implode(', ', $this->qb_select); } } // Write the "FROM" portion of the query - if (count($this->ar_from) > 0) + if (count($this->qb_from) > 0) { - $sql .= "\nFROM ".$this->_from_tables($this->ar_from); + $sql .= "\nFROM ".$this->_from_tables($this->qb_from); } // Write the "JOIN" portion of the query - if (count($this->ar_join) > 0) + if (count($this->qb_join) > 0) { - $sql .= "\n".implode("\n", $this->ar_join); + $sql .= "\n".implode("\n", $this->qb_join); } // Write the "WHERE" portion of the query - if (count($this->ar_where) > 0 OR count($this->ar_like) > 0) + if (count($this->qb_where) > 0 OR count($this->qb_like) > 0) { $sql .= "\nWHERE "; } - $sql .= implode("\n", $this->ar_where); + $sql .= implode("\n", $this->qb_where); // Write the "LIKE" portion of the query - if (count($this->ar_like) > 0) + if (count($this->qb_like) > 0) { - if (count($this->ar_where) > 0) + if (count($this->qb_where) > 0) { $sql .= "\nAND "; } - $sql .= implode("\n", $this->ar_like); + $sql .= implode("\n", $this->qb_like); } // Write the "GROUP BY" portion of the query - if (count($this->ar_groupby) > 0) + if (count($this->qb_groupby) > 0) { - $sql .= "\nGROUP BY ".implode(', ', $this->ar_groupby); + $sql .= "\nGROUP BY ".implode(', ', $this->qb_groupby); } // Write the "HAVING" portion of the query - if (count($this->ar_having) > 0) + if (count($this->qb_having) > 0) { - $sql .= "\nHAVING ".implode("\n", $this->ar_having); + $sql .= "\nHAVING ".implode("\n", $this->qb_having); } // Write the "ORDER BY" portion of the query - if (count($this->ar_orderby) > 0) + if (count($this->qb_orderby) > 0) { - $sql .= "\nORDER BY ".implode(', ', $this->ar_orderby); - if ($this->ar_order !== FALSE) + $sql .= "\nORDER BY ".implode(', ', $this->qb_orderby); + if ($this->qb_order !== FALSE) { - $sql .= ($this->ar_order == 'desc') ? ' DESC' : ' ASC'; + $sql .= ($this->qb_order == 'desc') ? ' DESC' : ' ASC'; } } // Write the "LIMIT" portion of the query - if (is_numeric($this->ar_limit)) + if (is_numeric($this->qb_limit)) { - return $this->_limit($sql."\n", $this->ar_limit, $this->ar_offset); + return $this->_limit($sql."\n", $this->qb_limit, $this->qb_offset); } return $sql; @@ -2023,13 +2164,13 @@ abstract class CI_DB_active_record extends CI_DB_driver { /** * Start Cache * - * Starts AR caching + * Starts QB caching * * @return void */ public function start_cache() { - $this->ar_caching = TRUE; + $this->qb_caching = TRUE; } // -------------------------------------------------------------------- @@ -2037,13 +2178,13 @@ abstract class CI_DB_active_record extends CI_DB_driver { /** * Stop Cache * - * Stops AR caching + * Stops QB caching * * @return void */ public function stop_cache() { - $this->ar_caching = FALSE; + $this->qb_caching = FALSE; } // -------------------------------------------------------------------- @@ -2051,24 +2192,24 @@ abstract class CI_DB_active_record extends CI_DB_driver { /** * Flush Cache * - * Empties the AR cache + * Empties the QB cache * * @return void */ public function flush_cache() { $this->_reset_run(array( - 'ar_cache_select' => array(), - 'ar_cache_from' => array(), - 'ar_cache_join' => array(), - 'ar_cache_where' => array(), - 'ar_cache_like' => array(), - 'ar_cache_groupby' => array(), - 'ar_cache_having' => array(), - 'ar_cache_orderby' => array(), - 'ar_cache_set' => array(), - 'ar_cache_exists' => array(), - 'ar_cache_no_escape' => array() + 'qb_cache_select' => array(), + 'qb_cache_from' => array(), + 'qb_cache_join' => array(), + 'qb_cache_where' => array(), + 'qb_cache_like' => array(), + 'qb_cache_groupby' => array(), + 'qb_cache_having' => array(), + 'qb_cache_orderby' => array(), + 'qb_cache_set' => array(), + 'qb_cache_exists' => array(), + 'qb_cache_no_escape' => array() )); } @@ -2077,47 +2218,47 @@ abstract class CI_DB_active_record extends CI_DB_driver { /** * Merge Cache * - * When called, this function merges any cached AR arrays with + * When called, this function merges any cached QB arrays with * locally called ones. * * @return void */ protected function _merge_cache() { - if (count($this->ar_cache_exists) === 0) + if (count($this->qb_cache_exists) === 0) { return; } - foreach ($this->ar_cache_exists as $val) + foreach ($this->qb_cache_exists as $val) { - $ar_variable = 'ar_'.$val; - $ar_cache_var = 'ar_cache_'.$val; + $qb_variable = 'qb_'.$val; + $qb_cache_var = 'qb_cache_'.$val; - if (count($this->$ar_cache_var) === 0) + if (count($this->$qb_cache_var) === 0) { continue; } - $this->$ar_variable = array_unique(array_merge($this->$ar_cache_var, $this->$ar_variable)); + $this->$qb_variable = array_unique(array_merge($this->$qb_cache_var, $this->$qb_variable)); } // If we are "protecting identifiers" we need to examine the "from" // portion of the query to determine if there are any aliases - if ($this->_protect_identifiers === TRUE && count($this->ar_cache_from) > 0) + if ($this->_protect_identifiers === TRUE && count($this->qb_cache_from) > 0) { - $this->_track_aliases($this->ar_from); + $this->_track_aliases($this->qb_from); } - $this->ar_no_escape = $this->ar_cache_no_escape; + $this->qb_no_escape = $this->qb_cache_no_escape; } // -------------------------------------------------------------------- /** - * Reset Active Record values. + * Reset Query Builder values. * - * Publicly-visible method to reset the AR values. + * Publicly-visible method to reset the QB values. * * @return void */ @@ -2130,16 +2271,16 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** - * Resets the active record values. Called by the get() function + * Resets the query builder values. Called by the get() function * * @param array An array of fields to reset * @return void */ - protected function _reset_run($ar_reset_items) + protected function _reset_run($qb_reset_items) { - foreach ($ar_reset_items as $item => $default_value) + foreach ($qb_reset_items as $item => $default_value) { - if ( ! in_array($item, $this->ar_store_array)) + if ( ! in_array($item, $this->qb_store_array)) { $this->$item = $default_value; } @@ -2149,28 +2290,28 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** - * Resets the active record values. Called by the get() function + * Resets the query builder values. Called by the get() function * * @return void */ protected function _reset_select() { $this->_reset_run(array( - 'ar_select' => array(), - 'ar_from' => array(), - 'ar_join' => array(), - 'ar_where' => array(), - 'ar_like' => array(), - 'ar_groupby' => array(), - 'ar_having' => array(), - 'ar_orderby' => array(), - 'ar_wherein' => array(), - 'ar_aliased_tables' => array(), - 'ar_no_escape' => array(), - 'ar_distinct' => FALSE, - 'ar_limit' => FALSE, - 'ar_offset' => FALSE, - 'ar_order' => FALSE + 'qb_select' => array(), + 'qb_from' => array(), + 'qb_join' => array(), + 'qb_where' => array(), + 'qb_like' => array(), + 'qb_groupby' => array(), + 'qb_having' => array(), + 'qb_orderby' => array(), + 'qb_wherein' => array(), + 'qb_aliased_tables' => array(), + 'qb_no_escape' => array(), + 'qb_distinct' => FALSE, + 'qb_limit' => FALSE, + 'qb_offset' => FALSE, + 'qb_order' => FALSE ) ); } @@ -2178,7 +2319,7 @@ abstract class CI_DB_active_record extends CI_DB_driver { // -------------------------------------------------------------------- /** - * Resets the active record "write" values. + * Resets the query builder "write" values. * * Called by the insert() update() insert_batch() update_batch() and delete() functions * @@ -2187,19 +2328,19 @@ abstract class CI_DB_active_record extends CI_DB_driver { protected function _reset_write() { $this->_reset_run(array( - 'ar_set' => array(), - 'ar_from' => array(), - 'ar_where' => array(), - 'ar_like' => array(), - 'ar_orderby' => array(), - 'ar_keys' => array(), - 'ar_limit' => FALSE, - 'ar_order' => FALSE + 'qb_set' => array(), + 'qb_from' => array(), + 'qb_where' => array(), + 'qb_like' => array(), + 'qb_orderby' => array(), + 'qb_keys' => array(), + 'qb_limit' => FALSE, + 'qb_order' => FALSE ) ); } } -/* End of file DB_active_rec.php */ -/* Location: ./system/database/DB_active_rec.php */
\ No newline at end of file +/* End of file DB_query_builder.php */ +/* Location: ./system/database/DB_query_builder.php */
\ No newline at end of file diff --git a/system/database/DB_result.php b/system/database/DB_result.php index 04f964fb1..196febe2c 100644 --- a/system/database/DB_result.php +++ b/system/database/DB_result.php @@ -57,7 +57,7 @@ class CI_DB_result { * Query result. Acts as a wrapper function for the following functions. * * @param string can be "object" or "array" - * @return mixed either a result object or array + * @return object */ public function result($type = 'object') { @@ -108,9 +108,9 @@ class CI_DB_result { // -------------------------------------------------------------------- /** - * Query result. "object" version. + * Query result. "object" version. * - * @return object + * @return array */ public function result_object() { @@ -224,7 +224,7 @@ class CI_DB_result { return; } - if ($key != '' AND ! is_null($value)) + if ($key != '' && ! is_null($value)) { $this->row_data[$key] = $value; } @@ -245,7 +245,7 @@ class CI_DB_result { return $result; } - if ($n != $this->current_row AND isset($result[$n])) + if ($n != $this->current_row && isset($result[$n])) { $this->current_row = $n; } @@ -266,7 +266,7 @@ class CI_DB_result { return $result; } - if ($n != $this->current_row AND isset($result[$n])) + if ($n != $this->current_row && isset($result[$n])) { $this->current_row = $n; } @@ -289,7 +289,7 @@ class CI_DB_result { return $result; } - if ($n != $this->current_row AND isset($result[$n])) + if ($n != $this->current_row && isset($result[$n])) { $this->current_row = $n; } @@ -297,7 +297,6 @@ class CI_DB_result { return $result[$this->current_row]; } - // -------------------------------------------------------------------- /** @@ -374,9 +373,9 @@ class CI_DB_result { /** * The following functions are normally overloaded by the identically named * methods in the platform-specific driver -- except when query caching - * is used. When caching is enabled we do not load the other driver. + * is used. When caching is enabled we do not load the other driver. * These functions are primarily here to prevent undefined function errors - * when a cached result object is in use. They are not otherwise fully + * when a cached result object is in use. They are not otherwise fully * operational due to the unavailability of the database resource IDs with * cached results. */ @@ -384,8 +383,8 @@ class CI_DB_result { public function num_fields() { return 0; } public function list_fields() { return array(); } public function field_data() { return array(); } - public function free_result() { return TRUE; } - protected function _data_seek() { return TRUE; } + public function free_result() { $this->result_id = FALSE; } + protected function _data_seek() { return FALSE; } protected function _fetch_assoc() { return array(); } protected function _fetch_object() { return array(); } diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php index 642a004bd..587dfdc01 100644 --- a/system/database/DB_utility.php +++ b/system/database/DB_utility.php @@ -37,6 +37,11 @@ abstract class CI_DB_utility extends CI_DB_forge { public $db; public $data_cache = array(); + // Platform specific SQL strings + // Just setting those defaults to FALSE as they are mostly MySQL-specific + protected $_optimize_table = FALSE; + protected $_repair_table = FALSE; + public function __construct() { // Assign the main database object to $this->db @@ -50,7 +55,7 @@ abstract class CI_DB_utility extends CI_DB_forge { /** * List databases * - * @return bool + * @return array */ public function list_databases() { @@ -59,18 +64,25 @@ abstract class CI_DB_utility extends CI_DB_forge { { return $this->data_cache['db_names']; } + elseif ($this->_list_databases === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + + $this->data_cache['db_names'] = array(); - $query = $this->db->query($this->_list_databases()); - $dbs = array(); - if ($query->num_rows() > 0) + $query = $this->db->query($this->_list_databases); + if ($query === FALSE) { - foreach ($query->result_array() as $row) - { - $dbs[] = current($row); - } + return $this->data_cache['db_names']; + } + + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $this->data_cache['db_names'] = current($query[$i]); } - return $this->data_cache['db_names'] = $dbs; + return $this->data_cache['db_names']; } // -------------------------------------------------------------------- @@ -79,48 +91,36 @@ abstract class CI_DB_utility extends CI_DB_forge { * Determine if a particular database exists * * @param string - * @return boolean + * @return bool */ public function database_exists($database_name) { - // Some databases won't have access to the list_databases() function, so - // this is intended to allow them to override with their own functions as - // defined in $driver_utility.php - if (method_exists($this, '_database_exists')) - { - return $this->_database_exists($database_name); - } - else - { - return ( ! in_array($database_name, $this->list_databases())) ? FALSE : TRUE; - } + return in_array($database_name, $this->list_databases()); } - // -------------------------------------------------------------------- /** * Optimize Table * * @param string the table name - * @return bool + * @return mixed */ public function optimize_table($table_name) { - $sql = $this->_optimize_table($table_name); - - if (is_bool($sql)) + if ($this->_optimize_table === FALSE) { - show_error('db_must_use_set'); - return FALSE; + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; } - $query = $this->db->query($sql); - $res = $query->result_array(); + $query = $this->db->query(sprintf($this->_optimize_table, $this->db->escape_identifiers($table_name))); + if ($query !== FALSE) + { + $query = $query->result_array(); + return current($res); + } - // Note: Due to a bug in current() that affects some versions - // of PHP we can not pass function call directly into it - return current($res); + return FALSE; } // -------------------------------------------------------------------- @@ -128,26 +128,26 @@ abstract class CI_DB_utility extends CI_DB_forge { /** * Optimize Database * - * @return array + * @return mixed */ public function optimize_database() { + if ($this->_optimize_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + $result = array(); foreach ($this->db->list_tables() as $table_name) { - $sql = $this->_optimize_table($table_name); - - if (is_bool($sql)) + $res = $this->db->query(sprintf($this->_optimize_table, $this->db->escape_identifiers($table_name))); + if (is_bool($res)) { - return $sql; + return $res; } - $query = $this->db->query($sql); - // Build the result array... - // Note: Due to a bug in current() that affects some versions - // of PHP we can not pass function call directly into it - $res = $query->result_array(); + $res = $res->result_array(); $res = current($res); $key = str_replace($this->db->database.'.', '', current($res)); $keys = array_keys($res); @@ -165,23 +165,23 @@ abstract class CI_DB_utility extends CI_DB_forge { * Repair Table * * @param string the table name - * @return bool + * @return mixed */ public function repair_table($table_name) { - $sql = $this->_repair_table($table_name); - - if (is_bool($sql)) + if ($this->_repair_table === FALSE) { - return $sql; + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; } - $query = $this->db->query($sql); + $query = $this->db->query(sprintf($this->_repair_table, $this->db->escape_identifiers($table_name))); + if (is_bool($query)) + { + return $query; + } - // Note: Due to a bug in current() that affects some versions - // of PHP we can not pass function call directly into it - $res = $query->result_array(); - return current($res); + $query = $query->result_array(); + return current($query); } // -------------------------------------------------------------------- @@ -257,18 +257,18 @@ abstract class CI_DB_utility extends CI_DB_forge { $CI->load->helper('xml'); // Generate the result - $xml = "<{$root}>".$newline; + $xml = '<'.$root.'>'.$newline; foreach ($query->result_array() as $row) { - $xml .= $tab."<{$element}>".$newline; + $xml .= $tab.'<'.$element.'>'.$newline; foreach ($row as $key => $val) { - $xml .= $tab.$tab."<{$key}>".xml_convert($val)."</{$key}>".$newline; + $xml .= $tab.$tab.'<'.$key.'>'.xml_convert($val).'</'.$key.'>'.$newline; } - $xml .= $tab."</{$element}>".$newline; + $xml .= $tab.'</'.$element.'>'.$newline; } - return $xml .= "</$root>".$newline; + return $xml.'</'.$root.'>'.$newline; } // -------------------------------------------------------------------- @@ -328,8 +328,8 @@ abstract class CI_DB_utility extends CI_DB_forge { // Is the encoder supported? If not, we'll either issue an // error or use plain text depending on the debug settings - if (($prefs['format'] === 'gzip' AND ! @function_exists('gzencode')) - OR ($prefs['format'] === 'zip' AND ! @function_exists('gzcompress'))) + if (($prefs['format'] === 'gzip' && ! @function_exists('gzencode')) + OR ($prefs['format'] === 'zip' && ! @function_exists('gzcompress'))) { if ($this->db->db_debug) { diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php index bed3d8685..1373faa88 100644 --- a/system/database/drivers/cubrid/cubrid_driver.php +++ b/system/database/drivers/cubrid/cubrid_driver.php @@ -21,7 +21,7 @@ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com - * @since Version 2.0.2 + * @since Version 2.1 * @filesource */ @@ -29,7 +29,7 @@ * CUBRID Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -43,7 +43,7 @@ class CI_DB_cubrid_driver extends CI_DB { public $dbdriver = 'cubrid'; // The character used for escaping - no need in CUBRID - protected $_escape_char = ''; + protected $_escape_char = '`'; // clause and character used for LIKE escape sequences - not used in CUBRID protected $_like_escape_str = ''; @@ -159,22 +159,6 @@ class CI_DB_cubrid_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Select the database - * - * @return resource - */ - public function db_select() - { - // In CUBRID there is no need to select a database as the database - // is chosen at the connection time. - // So, to determine if the database is "selected", all we have to - // do is ping the server and return that value. - return cubrid_ping($this->conn_id); - } - - // -------------------------------------------------------------------- - - /** * Database version number * * @return string @@ -208,13 +192,8 @@ class CI_DB_cubrid_driver extends CI_DB { */ public function trans_begin($test_mode = FALSE) { - if ( ! $this->trans_enabled) - { - return TRUE; - } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) { return TRUE; } @@ -222,7 +201,7 @@ class CI_DB_cubrid_driver extends CI_DB { // Reset the transaction failure flag. // If the $test_mode flag is set to TRUE transactions will be rolled back // even if the queries produce a successful result. - $this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE; + $this->_trans_failure = ($test_mode === TRUE); if (cubrid_get_autocommit($this->conn_id)) { @@ -241,13 +220,8 @@ class CI_DB_cubrid_driver extends CI_DB { */ public function trans_commit() { - if ( ! $this->trans_enabled) - { - return TRUE; - } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) { return TRUE; } @@ -271,13 +245,8 @@ class CI_DB_cubrid_driver extends CI_DB { */ public function trans_rollback() { - if ( ! $this->trans_enabled) - { - return TRUE; - } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) { return TRUE; } @@ -313,7 +282,9 @@ class CI_DB_cubrid_driver extends CI_DB { return $str; } - if (function_exists('cubrid_real_escape_string') AND is_resource($this->conn_id)) + if (function_exists('cubrid_real_escape_string') && + (is_resource($this->conn_id) + OR (get_resource_type($this->conn_id) === 'Unknown' && preg_match('/Resource id #/', strval($this->conn_id))))) { $str = cubrid_real_escape_string($str, $this->conn_id); } @@ -325,7 +296,7 @@ class CI_DB_cubrid_driver extends CI_DB { // escape LIKE condition wildcards if ($like === TRUE) { - $str = str_replace(array('%', '_'), array('\\%', '\\_'), $str); + return str_replace(array('%', '_'), array('\\%', '\\_'), $str); } return $str; @@ -379,9 +350,9 @@ class CI_DB_cubrid_driver extends CI_DB { return 0; } - $row = $query->row(); + $query = $query->row(); $this->_reset_select(); - return (int) $row->numrows; + return (int) $query->numrows; } // -------------------------------------------------------------------- @@ -396,11 +367,11 @@ class CI_DB_cubrid_driver extends CI_DB { */ protected function _list_tables($prefix_limit = FALSE) { - $sql = "SHOW TABLES"; + $sql = 'SHOW TABLES'; - if ($prefix_limit !== FALSE AND $this->dbprefix != '') + if ($prefix_limit !== FALSE && $this->dbprefix != '') { - $sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; } return $sql; @@ -433,7 +404,7 @@ class CI_DB_cubrid_driver extends CI_DB { */ protected function _field_data($table) { - return "SELECT * FROM ".$table." LIMIT 1"; + return 'SELECT * FROM '.$table.' LIMIT 1'; } // -------------------------------------------------------------------- @@ -451,45 +422,6 @@ class CI_DB_cubrid_driver extends CI_DB { return array('code' => cubrid_errno($this->conn_id), 'message' => cubrid_error($this->conn_id)); } - /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - // -------------------------------------------------------------------- /** @@ -514,94 +446,6 @@ class CI_DB_cubrid_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return "INSERT INTO ".$table." (\"".implode('", "', $keys)."\") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - - /** - * Replace statement - * - * Generates a platform-specific replace string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _replace($table, $keys, $values) - { - return "REPLACE INTO ".$table." (\"".implode('", "', $keys)."\") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - /** - * Insert_batch statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert_batch($table, $keys, $values) - { - return "INSERT INTO ".$table." (\"".implode('", "', $keys)."\") VALUES ".implode(', ', $values); - } - - // -------------------------------------------------------------------- - - - /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @return string - */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) - { - foreach ($values as $key => $val) - { - $valstr[] = sprintf('"%s" = %s', $key, $val); - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):''; - - $sql = "UPDATE ".$table." SET ".implode(', ', $valstr); - - $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : ''; - - $sql .= $orderby.$limit; - - return $sql; - } - - // -------------------------------------------------------------------- - - - /** * Update_Batch statement * * Generates a platform-specific batch update string from the supplied data @@ -614,8 +458,6 @@ class CI_DB_cubrid_driver extends CI_DB { protected function _update_batch($table, $values, $index, $where = NULL) { $ids = array(); - $where = ($where != '' AND count($where) >=1) ? implode(" ", $where).' AND ' : ''; - foreach ($values as $key => $val) { $ids[] = $val[$index]; @@ -629,79 +471,21 @@ class CI_DB_cubrid_driver extends CI_DB { } } - $sql = "UPDATE ".$table." SET "; $cases = ''; - foreach ($final as $k => $v) { - $cases .= $k.' = CASE '."\n"; - foreach ($v as $row) - { - $cases .= $row."\n"; - } - - $cases .= 'ELSE '.$k.' END, '; + $cases .= $k." = CASE \n" + .implode("\n", $v) + .'ELSE '.$k.' END, '; } - $sql .= substr($cases, 0, -2); - - $sql .= ' WHERE '.$where.$index.' IN ('.implode(',', $ids).')'; - - return $sql; + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) + .' WHERE '.(($where != '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') + .$index.' IN ('.implode(',', $ids).')'; } // -------------------------------------------------------------------- - - /** - * Truncate statement - * - * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" - * - * @param string the table name - * @return string - */ - protected function _truncate($table) - { - return "TRUNCATE ".$table; - } - - // -------------------------------------------------------------------- - - /** - * Delete statement - * - * Generates a platform-specific delete string from the supplied data - * - * @param string the table name - * @param array the where clause - * @param string the limit clause - * @return string - */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) - { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - $conditions .= implode("\n", $like); - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - return "DELETE FROM ".$table.$conditions.$limit; - } - - // -------------------------------------------------------------------- - + /** * Limit string * @@ -714,16 +498,7 @@ class CI_DB_cubrid_driver extends CI_DB { */ protected function _limit($sql, $limit, $offset) { - if ($offset == 0) - { - $offset = ''; - } - else - { - $offset .= ", "; - } - - return $sql."LIMIT ".$offset.$limit; + return $sql.'LIMIT '.($offset == 0 ? '' : $offset.', ').$limit; } // -------------------------------------------------------------------- @@ -742,4 +517,4 @@ class CI_DB_cubrid_driver extends CI_DB { } /* End of file cubrid_driver.php */ -/* Location: ./system/database/drivers/cubrid/cubrid_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/cubrid/cubrid_driver.php */ diff --git a/system/database/drivers/cubrid/cubrid_forge.php b/system/database/drivers/cubrid/cubrid_forge.php index bbda484c4..4e66f81e3 100644 --- a/system/database/drivers/cubrid/cubrid_forge.php +++ b/system/database/drivers/cubrid/cubrid_forge.php @@ -21,7 +21,7 @@ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com - * @since Version 1.0 + * @since Version 2.1 * @filesource */ @@ -34,35 +34,8 @@ */ class CI_DB_cubrid_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return bool - */ - public function _create_database($name) - { - // CUBRID does not allow to create a database in SQL. The GUI tools - // have to be used for this purpose. - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return bool - */ - public function _drop_database($name) - { - // CUBRID does not allow to drop a database in SQL. The GUI tools - // have to be used for this purpose. - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_create_database = FALSE; + protected $_drop_database = FALSE; /** * Process Fields @@ -82,24 +55,19 @@ class CI_DB_cubrid_forge extends CI_DB_forge { // entered the field information, so we'll simply add it to the list if (is_numeric($field)) { - $sql .= "\n\t$attributes"; + $sql .= "\n\t".$attributes; } else { $attributes = array_change_key_case($attributes, CASE_UPPER); + $sql .= "\n\t".$this->db->protect_identifiers($field) + .( ! empty($attributes['NAME']) ? ' '.$this->db->protect_identifiers($attributes['NAME']).' ' : ''); - $sql .= "\n\t\"".$this->db->protect_identifiers($field).'"'; - - if (array_key_exists('NAME', $attributes)) - { - $sql .= ' '.$this->db->protect_identifiers($attributes['NAME']).' '; - } - - if (array_key_exists('TYPE', $attributes)) + if ( ! empty($attributes['TYPE'])) { $sql .= ' '.$attributes['TYPE']; - if (array_key_exists('CONSTRAINT', $attributes)) + if ( ! empty($attributes['CONSTRAINT'])) { switch ($attributes['TYPE']) { @@ -108,9 +76,10 @@ class CI_DB_cubrid_forge extends CI_DB_forge { case 'numeric': $sql .= '('.implode(',', $attributes['CONSTRAINT']).')'; break; - case 'enum': // As of version 8.4.0 CUBRID does not support - // enum data type. - break; + case 'enum': + // Will be supported in the future as part a part of + // MySQL compatibility features. + break; case 'set': $sql .= '("'.implode('","', $attributes['CONSTRAINT']).'")'; break; @@ -120,36 +89,19 @@ class CI_DB_cubrid_forge extends CI_DB_forge { } } - if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE) - { - //$sql .= ' UNSIGNED'; - // As of version 8.4.0 CUBRID does not support UNSIGNED INTEGER data type. - // Will be supported in the next release as a part of MySQL Compatibility. - } - - if (array_key_exists('DEFAULT', $attributes)) - { - $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\''; - } - - if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - - if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE) + /* As of version 8.4.1 CUBRID does not support UNSIGNED INTEGER data type. + * Will be supported in the next release as a part of MySQL Compatibility. + * + if (isset($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE) { - $sql .= ' AUTO_INCREMENT'; + $sql .= ' UNSIGNED'; } + */ - if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE) - { - $sql .= ' UNIQUE'; - } + $sql .= (isset($attributes['DEFAULT']) ? " DEFAULT '".$attributes['DEFAULT']."'" : '') + .(( ! empty($attributes['NULL']) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL') + .(( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) ? ' AUTO_INCREMENT' : '') + .(( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) ? ' UNIQUE' : ''); } // don't add a comma on the end of the last field @@ -174,27 +126,24 @@ class CI_DB_cubrid_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; + /* As of version 8.4.1 CUBRID does not support this SQL syntax. if ($if_not_exists === TRUE) { - //$sql .= 'IF NOT EXISTS '; - // As of version 8.4.0 CUBRID does not support this SQL syntax. + $sql .= 'IF NOT EXISTS '; } + */ - $sql .= $this->db->_escape_identifiers($table)." ("; - - $sql .= $this->_process_fields($fields); + $sql .= $this->db->escape_identifiers($table).' ('.$this->_process_fields($fields); // If there is a PK defined if (count($primary_keys) > 0) { - $key_name = 'pk_'.$table.'_'.$this->db->protect_identifiers(implode('_', $primary_keys)); - - $primary_keys = $this->db->protect_identifiers($primary_keys); - $sql .= ",\n\tCONSTRAINT " . $key_name . " PRIMARY KEY(" . implode(', ', $primary_keys) . ")"; + $key_name = $this->db->protect_identifiers('pk_'.$table.'_'.implode('_', $primary_keys)); + $sql .= ",\n\tCONSTRAINT ".$key_name.' PRIMARY KEY('.implode(', ', $this->db->protect_identifiers($primary_keys)).')'; } if (is_array($keys) && count($keys) > 0) @@ -203,34 +152,20 @@ class CI_DB_cubrid_forge extends CI_DB_forge { { if (is_array($key)) { - $key_name = $this->db->protect_identifiers(implode('_', $key)); + $key_name = $this->db->protect_identifiers('idx_'.$table.implode('_', $key)); $key = $this->db->protect_identifiers($key); } else { - $key_name = $this->db->protect_identifiers($key); + $key_name = $this->db->protect_identifiers('idx_'.$table.$key); $key = array($key_name); } - $sql .= ",\n\tKEY \"{$key_name}\" (" . implode(', ', $key) . ")"; + $sql .= ",\n\tKEY ".$key_name.' ('.implode(', ', $key).')'; } } - $sql .= "\n);"; - - return $sql; - } - - // -------------------------------------------------------------------- - - /** - * Drop Table - * - * @return string - */ - public function _drop_table($table) - { - return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table); + return $sql."\n);"; } // -------------------------------------------------------------------- @@ -247,40 +182,18 @@ class CI_DB_cubrid_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $fields, $after_field = '') + protected function _alter_table($alter_type, $table, $fields, $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '; // DROP has everything it needs now. - if ($alter_type == 'DROP') + if ($alter_type === 'DROP') { return $sql.$this->db->protect_identifiers($fields); } - $sql .= $this->_process_fields($fields); - - if ($after_field != '') - { - return $sql.' AFTER '.$this->db->protect_identifiers($after_field); - } - - return $sql; - } - - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'RENAME TABLE '.$this->db->protect_identifiers($table_name).' AS '.$this->db->protect_identifiers($new_table_name); + return $sql.$this->_process_fields($fields) + .($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : ''); } } diff --git a/system/database/drivers/cubrid/cubrid_result.php b/system/database/drivers/cubrid/cubrid_result.php index 6a61a213d..3eb9f7e3d 100644 --- a/system/database/drivers/cubrid/cubrid_result.php +++ b/system/database/drivers/cubrid/cubrid_result.php @@ -21,7 +21,7 @@ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com - * @since Version 2.0.2 + * @since Version 2.1 * @filesource */ @@ -84,53 +84,20 @@ class CI_DB_cubrid_result extends CI_DB_result { public function field_data() { $retval = array(); - - $tablePrimaryKeys = array(); + $i = 0; while ($field = cubrid_fetch_field($this->result_id)) { - $F = new stdClass(); - $F->name = $field->name; - $F->type = $field->type; - $F->default = $field->def; - $F->max_length = $field->max_length; - - // At this moment primary_key property is not returned when - // cubrid_fetch_field is called. The following code will - // provide a patch for it. primary_key property will be added - // in the next release. - - // TODO: later version of CUBRID will provide primary_key - // property. - // When PK is defined in CUBRID, an index is automatically - // created in the db_index system table in the form of - // pk_tblname_fieldname. So the following will count how many - // columns are there which satisfy this format. - // The query will search for exact single columns, thus - // compound PK is not supported. - $res = cubrid_query($this->conn_id, - "SELECT COUNT(*) FROM db_index WHERE class_name = '" . $field->table . - "' AND is_primary_key = 'YES' AND index_name = 'pk_" . - $field->table . "_" . $field->name . "'" - ); - - if ($res) - { - $row = cubrid_fetch_array($res, CUBRID_NUM); - $F->primary_key = ($row[0] > 0 ? 1 : null); - } - else - { - $F->primary_key = null; - } - - if (is_resource($res)) - { - cubrid_close_request($res); - $this->result_id = FALSE; - } - - $retval[] = $F; + $retval[$i] = new stdClass(); + $retval[$i]->name = $field->name; + // CUBRID returns type as e.g. varchar(100), + // so we need to remove all digits and brackets. + $retval[$i]->type = preg_replace('/[\d()]/', '', $field->type); + $retval[$i]->default = $field->def; + // Use CUBRID's native API to obtain column's max_length, + // otherwise $field->max_length has incorrect info + $retval[$i]->max_length = cubrid_field_len($this->result_id, $i); + $retval[$i++]->primary_key = $field->primary_key; } return $retval; @@ -145,9 +112,8 @@ class CI_DB_cubrid_result extends CI_DB_result { */ public function free_result() { - if(is_resource($this->result_id) || - get_resource_type($this->result_id) == "Unknown" && - preg_match('/Resource id #/', strval($this->result_id))) + if (is_resource($this->result_id) OR + (get_resource_type($this->result_id) === 'Unknown' && preg_match('/Resource id #/', strval($this->result_id)))) { cubrid_close_request($this->result_id); $this->result_id = FALSE; @@ -163,7 +129,7 @@ class CI_DB_cubrid_result extends CI_DB_result { * this internally before fetching results to make sure the * result set starts at zero * - * @return array + * @return bool */ protected function _data_seek($n = 0) { diff --git a/system/database/drivers/cubrid/cubrid_utility.php b/system/database/drivers/cubrid/cubrid_utility.php index dafd66146..c8cee99b6 100644 --- a/system/database/drivers/cubrid/cubrid_utility.php +++ b/system/database/drivers/cubrid/cubrid_utility.php @@ -21,7 +21,7 @@ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com - * @since Version 1.0 + * @since Version 2.1 * @filesource */ @@ -39,69 +39,25 @@ class CI_DB_cubrid_utility extends CI_DB_utility { * * @return array */ - public function _list_databases() + public function list_databases() { - // CUBRID does not allow to see the list of all databases on the - // server. It is the way its architecture is designed. Every - // database is independent and isolated. - // For this reason we can return only the name of the currect - // connected database. - if ($this->conn_id) + if (isset($this->data_cache['db_names'])) { - return "SELECT '" . $this->database . "'"; + return $this->data_cache['db_names']; } - else - { - return FALSE; - } - } - - // -------------------------------------------------------------------- - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return bool - * @link http://www.cubrid.org/manual/840/en/Optimize%20Database - */ - public function _optimize_table($table) - { - // No SQL based support in CUBRID as of version 8.4.0. Database or - // table optimization can be performed using CUBRID Manager - // database administration tool. See the link above for more info. - return FALSE; + return $this->data_cache['db_names'] = cubrid_list_dbs($this->db->conn_id); } // -------------------------------------------------------------------- /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return bool - * @link http://www.cubrid.org/manual/840/en/Checking%20Database%20Consistency - */ - public function _repair_table($table) - { - // Not supported in CUBRID as of version 8.4.0. Database or - // table consistency can be checked using CUBRID Manager - // database administration tool. See the link above for more info. - return FALSE; - } - - // -------------------------------------------------------------------- - /** * CUBRID Export * * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // No SQL based support in CUBRID as of version 8.4.0. Database or // table backup can be performed using CUBRID Manager diff --git a/system/database/drivers/interbase/interbase_driver.php b/system/database/drivers/interbase/interbase_driver.php index d8b6ae571..1b18de803 100644 --- a/system/database/drivers/interbase/interbase_driver.php +++ b/system/database/drivers/interbase/interbase_driver.php @@ -29,7 +29,7 @@ * Firebird/Interbase Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -85,19 +85,6 @@ class CI_DB_interbase_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Select the database - * - * @return bool - */ - public function db_select() - { - // Connection selects the database - return TRUE; - } - - // -------------------------------------------------------------------- - - /** * Database version number * * @return string @@ -356,38 +343,6 @@ class CI_DB_interbase_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This public function escapes column and table names - * - * @param string - * @return string - */ - protected function _escape_identifiers($item) - { - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $item = str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item); - } - } - - if (strpos($item, '.') !== FALSE) - { - $item = str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item); - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item.$this->_escape_char); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This public function implicitly groups FROM tables so there is no confusion @@ -410,23 +365,6 @@ class CI_DB_interbase_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; - } - - // -------------------------------------------------------------------- - - /** * Update statement * * Generates a platform-specific update string from the supplied data @@ -435,20 +373,26 @@ class CI_DB_interbase_driver extends CI_DB { * @param array the update data * @param array the where clause * @param array the orderby clause - * @param array the limit clause + * @param array the limit clause (ignored) + * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) + protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) { foreach ($values as $key => $val) { $valstr[] = $key.' = '.$val; } - //$limit = ( ! $limit) ? '' : ' LIMIT '.$limit; + $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); + + if ( ! empty($like)) + { + $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); + } return 'UPDATE '.$table.' SET '.implode(', ', $valstr) - .(($where != '' && count($where) > 0) ? ' WHERE '.implode(' ', $where) : '') + .$where .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : ''); } @@ -459,15 +403,16 @@ class CI_DB_interbase_driver extends CI_DB { * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This public function maps to "DELETE FROM table" + * + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' * * @param string the table name * @return string */ protected function _truncate($table) { - return $this->_delete($table); + return 'DELETE FROM '.$table; } // -------------------------------------------------------------------- @@ -479,25 +424,18 @@ class CI_DB_interbase_driver extends CI_DB { * * @param string the table name * @param array the where clause - * @param string the limit clause + * @param array the like clause + * @param string the limit clause (ignored) * @return string */ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) { - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE ".implode("\n", $where) - .((count($where) > 0 && count($like) > 0) ? ' AND ' : '') - .implode("\n", $like); - } - else - { - $conditions = ''; - } + $conditions = array(); - //$limit = ( ! $limit) ? '' : ' LIMIT '.$limit; + empty($where) OR $conditions[] = implode(' ', $where); + empty($like) OR $conditions[] = implode(' ', $like); - return 'DELETE FROM '.$table.' '.$conditions; + return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/interbase/interbase_forge.php b/system/database/drivers/interbase/interbase_forge.php index f46043569..c850656a8 100644 --- a/system/database/drivers/interbase/interbase_forge.php +++ b/system/database/drivers/interbase/interbase_forge.php @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * Interbase/Firebird Forge Class * @@ -36,18 +34,22 @@ */ class CI_DB_interbase_forge extends CI_DB_forge { + protected $_drop_table = 'DROP TABLE %s'; + /** * Create database * * @param string the database name * @return string */ - protected function _create_database($filename='') + public function create_database($db_name) { - // Firebird databases are flat files, so a path is required + // Firebird databases are flat files, so a path is required + // Hostname is needed for remote access - return 'CREATE DATABASE "'.$this->hostname.':'.$filename.'"'; - + empty($this->db->hostname) OR $db_name = $this->hostname.':'.$db_name; + + return parent::create_database('"'.$db_name.'"'); } // -------------------------------------------------------------------- @@ -55,14 +57,20 @@ class CI_DB_interbase_forge extends CI_DB_forge { /** * Drop database * - * @param string the database name - not used in this driver - * - the current db is dropped + * @param string the database name + * - not used in this driver, the current db is dropped * @return bool */ - protected function _drop_database($name='') + public function drop_database($db_name = '') { - return ibase_drop_db($this->conn_id); + if ( ! ibase_drop_db($this->conn_id)) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + return TRUE; } + // -------------------------------------------------------------------- /** @@ -72,7 +80,7 @@ class CI_DB_interbase_forge extends CI_DB_forge { * @param array the fields * @param mixed primary key(s) * @param mixed key(s) - * @param boolean should 'IF NOT EXISTS' be added to the SQL + * @param bool should 'IF NOT EXISTS' be added to the SQL * @return string */ protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) @@ -167,18 +175,6 @@ class CI_DB_interbase_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @return string - */ - protected function _drop_table($table) - { - return 'DROP TABLE '.$name; - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -189,7 +185,7 @@ class CI_DB_interbase_forge extends CI_DB_forge { * @param string the table name * @param string the column definition * @param string the default value - * @param boolean should 'NOT NULL' be added + * @param bool should 'NOT NULL' be added * @param string the field after which we should add the new field * @return string */ @@ -222,21 +218,6 @@ class CI_DB_interbase_forge extends CI_DB_forge { } - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - protected function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } } /* End of file interbase_forge.php */ diff --git a/system/database/drivers/interbase/interbase_result.php b/system/database/drivers/interbase/interbase_result.php index fd4178dec..5ddb6fa47 100644 --- a/system/database/drivers/interbase/interbase_result.php +++ b/system/database/drivers/interbase/interbase_result.php @@ -131,23 +131,6 @@ class CI_DB_interbase_result extends CI_DB_result { // -------------------------------------------------------------------- /** - * Data Seek - * - * Moves the internal pointer to the desired offset. We call - * this internally before fetching results to make sure the - * result set starts at zero - * - * @return array - */ - protected function _data_seek($n = 0) - { - // Interbase driver doesn't implement a suitable function - return FALSE; - } - - // -------------------------------------------------------------------- - - /** * Result - associative array * * Returns the result set as an array diff --git a/system/database/drivers/interbase/interbase_utility.php b/system/database/drivers/interbase/interbase_utility.php index a88055ee0..1b92af9b6 100644 --- a/system/database/drivers/interbase/interbase_utility.php +++ b/system/database/drivers/interbase/interbase_utility.php @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * Interbase/Firebird Utility Class * @@ -36,56 +34,7 @@ */ class CI_DB_interbase_utility extends CI_DB_utility { - /** - * List databases - * - * I don't believe you can do a database listing with Firebird - * since each database is its own file. I suppose we could - * try reading a directory looking for Firebird files, but - * that doesn't seem like a terribly good idea - * - * @return bool - */ - public function _list_databases() - { - if ($this->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Is optimization even supported in Interbase/Firebird? - * - * @param string the table name - * @return object - */ - public function _optimize_table($table) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Table repairs are not supported in Interbase/Firebird - * - * @param string the table name - * @return object - */ - public function _repair_table($table) - { - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_list_databases = FALSE; /** * Interbase/Firebird Export @@ -93,22 +42,20 @@ class CI_DB_interbase_utility extends CI_DB_utility { * @param string $filename * @return mixed */ - public function backup($filename) + protected function backup($filename) { if ($service = ibase_service_attach($this->db->hostname, $this->db->username, $this->db->password)) { $res = ibase_backup($service, $this->db->database, $filename.'.fbk'); - - //Close the service connection + + // Close the service connection ibase_service_detach($service); - return $res; } - else - { - return FALSE; - } + + return FALSE; } + } /* End of file interbase_utility.php */ diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php index 912808631..f60ec8168 100644 --- a/system/database/drivers/mssql/mssql_driver.php +++ b/system/database/drivers/mssql/mssql_driver.php @@ -29,7 +29,7 @@ * MS SQL Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -52,10 +52,10 @@ class CI_DB_mssql_driver extends CI_DB { /** * The syntax to count rows is slightly different across different * database engines, so this string appears in each driver and is - * used for the count_all() and count_all_results() functions. + * used for the count_all() and count_all_results() methods. */ protected $_count_string = 'SELECT COUNT(*) AS '; - protected $_random_keyword = ' ASC'; // not currently supported + protected $_random_keyword = ' NEWID()'; /** * Non-persistent database connection @@ -404,47 +404,6 @@ class CI_DB_mssql_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -466,23 +425,6 @@ class CI_DB_mssql_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - /** * Update statement * * Generates a platform-specific update string from the supplied data @@ -490,46 +432,44 @@ class CI_DB_mssql_driver extends CI_DB { * @param string the table name * @param array the update data * @param array the where clause - * @param array the orderby clause - * @param array the limit clause + * @param array the orderby clause (ignored) + * @param array the limit clause (ignored) + * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) + protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) { - foreach ($values as $key => $val) + foreach($values as $key => $val) { - $valstr[] = $key." = ".$val; + $valstr[] = $key.' = '.$val; } - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):''; + $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - $sql = "UPDATE ".$table." SET ".implode(', ', $valstr); - - $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : ''; - - $sql .= $orderby.$limit; + if ( ! empty($like)) + { + $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); + } - return $sql; + return 'UPDATE '.$table.' SET '.implode(', ', $valstr).' WHERE '.$where; } - // -------------------------------------------------------------------- /** * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" + * + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' * * @param string the table name * @return string */ protected function _truncate($table) { - return "TRUNCATE ".$table; + return 'TRUNCATE TABLE '.$table; } // -------------------------------------------------------------------- @@ -541,28 +481,22 @@ class CI_DB_mssql_driver extends CI_DB { * * @param string the table name * @param array the where clause + * @param array the like clause * @param string the limit clause * @return string */ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); + $conditions = array(); - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - $conditions .= implode("\n", $like); - } + empty($where) OR $conditions[] = implode(' ', $where); + empty($like) OR $conditions[] = implode(' ', $like); - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; + $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; - return "DELETE FROM ".$table.$conditions.$limit; + return ($limit) + ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' + : 'DELETE FROM '.$table.$conditions; } // -------------------------------------------------------------------- @@ -600,4 +534,4 @@ class CI_DB_mssql_driver extends CI_DB { } /* End of file mssql_driver.php */ -/* Location: ./system/database/drivers/mssql/mssql_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/mssql/mssql_driver.php */ diff --git a/system/database/drivers/mssql/mssql_forge.php b/system/database/drivers/mssql/mssql_forge.php index 2e3e314ed..8f8e7c5b9 100644 --- a/system/database/drivers/mssql/mssql_forge.php +++ b/system/database/drivers/mssql/mssql_forge.php @@ -34,44 +34,7 @@ */ class CI_DB_mssql_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return string - */ - public function _create_database($name) - { - return "CREATE DATABASE ".$name; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return string - */ - public function _drop_database($name) - { - return "DROP DATABASE ".$name; - } - - // -------------------------------------------------------------------- - - /** - * Drop Table - * - * @param string table name - * @return string - */ - public function _drop_table($table) - { - return "DROP TABLE ".$this->db->_escape_identifiers($table); - } - - // -------------------------------------------------------------------- + protected $_drop_table = 'DROP TABLE %s'; /** * Create Table @@ -83,7 +46,7 @@ class CI_DB_mssql_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return string */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -92,7 +55,7 @@ class CI_DB_mssql_forge extends CI_DB_forge { $sql .= 'IF NOT EXISTS '; } - $sql .= $this->db->_escape_identifiers($table)." ("; + $sql .= $this->db->escape_identifiers($table).' ('; $current_field_count = 0; foreach ($fields as $field => $attributes) @@ -194,7 +157,7 @@ class CI_DB_mssql_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') + protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name); @@ -229,23 +192,6 @@ class CI_DB_mssql_forge extends CI_DB_forge { } - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - // I think this syntax will work, but can find little documentation on renaming tables in MSSQL - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } - } /* End of file mssql_forge.php */ diff --git a/system/database/drivers/mssql/mssql_result.php b/system/database/drivers/mssql/mssql_result.php index 2723f4614..4cc87f4cf 100644 --- a/system/database/drivers/mssql/mssql_result.php +++ b/system/database/drivers/mssql/mssql_result.php @@ -126,11 +126,11 @@ class CI_DB_mssql_result extends CI_DB_result { /** * Data Seek * - * Moves the internal pointer to the desired offset. We call + * Moves the internal pointer to the desired offset. We call * this internally before fetching results to make sure the * result set starts at zero * - * @return array + * @return bool */ protected function _data_seek($n = 0) { diff --git a/system/database/drivers/mssql/mssql_utility.php b/system/database/drivers/mssql/mssql_utility.php index 5c144330d..6d47618ce 100644 --- a/system/database/drivers/mssql/mssql_utility.php +++ b/system/database/drivers/mssql/mssql_utility.php @@ -34,47 +34,8 @@ */ class CI_DB_mssql_utility extends CI_DB_utility { - /** - * List databases - * - * @return string - */ - public function _list_databases() - { - return "EXEC sp_helpdb"; // Can also be: EXEC sp_databases - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return bool - */ - public function _optimize_table($table) - { - return FALSE; // Is this supported in MS SQL? - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return bool - */ - public function _repair_table($table) - { - return FALSE; // Is this supported in MS SQL? - } - - // -------------------------------------------------------------------- + protected $_list_databases = 'EXEC sp_helpdb'; // Can also be: EXEC sp_databases + protected $_optimize_table = 'ALTER INDEX all ON %s REORGANIZE'; /** * MSSQL Export @@ -82,7 +43,7 @@ class CI_DB_mssql_utility extends CI_DB_utility { * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php index bef4111c3..32c51865d 100644 --- a/system/database/drivers/mysql/mysql_driver.php +++ b/system/database/drivers/mysql/mysql_driver.php @@ -29,7 +29,7 @@ * MySQL Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -439,43 +439,6 @@ class CI_DB_mysql_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $item = str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item); - } - } - - if (strpos($item, '.') !== FALSE) - { - $item = str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item); - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item.$this->_escape_char); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -497,92 +460,6 @@ class CI_DB_mysql_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; - } - - // -------------------------------------------------------------------- - - - /** - * Replace statement - * - * Generates a platform-specific replace string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _replace($table, $keys, $values) - { - return 'REPLACE INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; - } - - // -------------------------------------------------------------------- - - /** - * Insert_batch statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert_batch($table, $keys, $values) - { - return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES '.implode(', ', $values); - } - - // -------------------------------------------------------------------- - - - /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @return string - */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) - { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = ($where != '' && count($where) > 0) ? ' WHERE '.implode(' ', $where) : ''; - if (count($like) > 0) - { - $where .= ($where == '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where - .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : '') - .( ! $limit ? '' : ' LIMIT '.$limit); - } - - // -------------------------------------------------------------------- - - - /** * Update_Batch statement * * Generates a platform-specific batch update string from the supplied data @@ -624,53 +501,6 @@ class CI_DB_mysql_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Truncate statement - * - * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" - * - * @param string the table name - * @return string - */ - protected function _truncate($table) - { - return 'TRUNCATE '.$table; - } - - // -------------------------------------------------------------------- - - /** - * Delete statement - * - * Generates a platform-specific delete string from the supplied data - * - * @param string the table name - * @param array the where clause - * @param string the limit clause - * @return string - */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) - { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE ".implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= ' AND '; - } - $conditions .= implode("\n", $like); - } - - return 'DELETE FROM '.$table.$conditions.( ! $limit ? '' : ' LIMIT '.$limit); - } - - // -------------------------------------------------------------------- - - /** * Limit string * * Generates a platform-specific LIMIT clause @@ -701,4 +531,4 @@ class CI_DB_mysql_driver extends CI_DB { } /* End of file mysql_driver.php */ -/* Location: ./system/database/drivers/mysql/mysql_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/mysql/mysql_driver.php */ diff --git a/system/database/drivers/mysql/mysql_forge.php b/system/database/drivers/mysql/mysql_forge.php index 11172b41b..0e39affa7 100644 --- a/system/database/drivers/mysql/mysql_forge.php +++ b/system/database/drivers/mysql/mysql_forge.php @@ -34,31 +34,7 @@ */ class CI_DB_mysql_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return string - */ - public function _create_database($name) - { - return 'CREATE DATABASE '.$name; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return string - */ - public function _drop_database($name) - { - return 'DROP DATABASE '.$name; - } - - // -------------------------------------------------------------------- + protected $_create_database = 'CREATE DATABASE %s CHARACTER SET %s COLLATE %s'; /** * Process Fields @@ -138,7 +114,7 @@ class CI_DB_mysql_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -180,19 +156,6 @@ class CI_DB_mysql_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @param string table name - * @return string - */ - public function _drop_table($table) - { - return 'DROP TABLE IF EXISTS '.$this->db->protect_identifiers($table); - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -204,7 +167,7 @@ class CI_DB_mysql_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $fields, $after_field = '') + protected function _alter_table($alter_type, $table, $fields, $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '; @@ -218,22 +181,6 @@ class CI_DB_mysql_forge extends CI_DB_forge { .($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : ''); } - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } - } /* End of file mysql_forge.php */ diff --git a/system/database/drivers/mysql/mysql_result.php b/system/database/drivers/mysql/mysql_result.php index f76076f4c..14d6d072a 100644 --- a/system/database/drivers/mysql/mysql_result.php +++ b/system/database/drivers/mysql/mysql_result.php @@ -128,7 +128,7 @@ class CI_DB_mysql_result extends CI_DB_result { * this internally before fetching results to make sure the * result set starts at zero * - * @return array + * @return bool */ protected function _data_seek($n = 0) { diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php index 2d89cb9cb..642323dbd 100644 --- a/system/database/drivers/mysql/mysql_utility.php +++ b/system/database/drivers/mysql/mysql_utility.php @@ -34,54 +34,17 @@ */ class CI_DB_mysql_utility extends CI_DB_utility { - /** - * List databases - * - * @return string - */ - public function _list_databases() - { - return 'SHOW DATABASES'; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return string - */ - public function _optimize_table($table) - { - return 'OPTIMIZE TABLE '.$this->db->protect_identifiers($table); - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return string - */ - public function _repair_table($table) - { - return 'REPAIR TABLE '.$this->db->protect_identifiers($table); - } + protected $_list_databases = 'SHOW DATABASES'; + protected $_optimize_table = 'OPTIMIZE TABLE %s'; + protected $_repair_table = 'REPAIR TABLE %s'; - // -------------------------------------------------------------------- /** * MySQL Export * * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { if (count($params) === 0) { diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php index 041daf710..e2684e4f2 100644 --- a/system/database/drivers/mysqli/mysqli_driver.php +++ b/system/database/drivers/mysqli/mysqli_driver.php @@ -29,7 +29,7 @@ * MySQLi Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -72,8 +72,8 @@ class CI_DB_mysqli_driver extends CI_DB { public function db_connect() { return ($this->port != '') - ? @mysqli_connect($this->hostname, $this->username, $this->password, $this->database, $this->port) - : @mysqli_connect($this->hostname, $this->username, $this->password, $this->database); + ? @new mysqli($this->hostname, $this->username, $this->password, $this->database, $this->port) + : @new mysqli($this->hostname, $this->username, $this->password, $this->database); } // -------------------------------------------------------------------- @@ -92,8 +92,8 @@ class CI_DB_mysqli_driver extends CI_DB { } return ($this->port != '') - ? @mysqli_connect('p:'.$this->hostname, $this->username, $this->password, $this->database, $this->port) - : @mysqli_connect('p:'.$this->hostname, $this->username, $this->password, $this->database); + ? @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database, $this->port) + : @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database); } // -------------------------------------------------------------------- @@ -108,7 +108,7 @@ class CI_DB_mysqli_driver extends CI_DB { */ public function reconnect() { - if (mysqli_ping($this->conn_id) === FALSE) + if ($this->conn_id !== FALSE && $this->conn_id->ping() === FALSE) { $this->conn_id = FALSE; } @@ -129,7 +129,7 @@ class CI_DB_mysqli_driver extends CI_DB { $database = $this->database; } - if (@mysqli_select_db($this->conn_id, $database)) + if (@$this->conn_id->select_db($database)) { $this->database = $database; return TRUE; @@ -148,7 +148,7 @@ class CI_DB_mysqli_driver extends CI_DB { */ protected function _db_set_charset($charset) { - return @mysqli_set_charset($this->conn_id, $charset); + return @$this->conn_id->set_charset($charset); } // -------------------------------------------------------------------- @@ -162,7 +162,7 @@ class CI_DB_mysqli_driver extends CI_DB { { return isset($this->data_cache['version']) ? $this->data_cache['version'] - : $this->data_cache['version'] = @mysqli_get_server_info($this->conn_id); + : $this->data_cache['version'] = $this->conn_id->server_info; } // -------------------------------------------------------------------- @@ -175,7 +175,7 @@ class CI_DB_mysqli_driver extends CI_DB { */ protected function _execute($sql) { - return @mysqli_query($this->conn_id, $this->_prep_query($sql)); + return @$this->conn_id->query($this->_prep_query($sql)); } // -------------------------------------------------------------------- @@ -286,7 +286,7 @@ class CI_DB_mysqli_driver extends CI_DB { return $str; } - $str = is_object($this->conn_id) ? mysqli_real_escape_string($this->conn_id, $str) : addslashes($str); + $str = is_object($this->conn_id) ? $this->conn_id->real_escape_string($str) : addslashes($str); // escape LIKE condition wildcards if ($like === TRUE) @@ -306,7 +306,7 @@ class CI_DB_mysqli_driver extends CI_DB { */ public function affected_rows() { - return @mysqli_affected_rows($this->conn_id); + return $this->conn_id->affected_rows; } // -------------------------------------------------------------------- @@ -318,7 +318,7 @@ class CI_DB_mysqli_driver extends CI_DB { */ public function insert_id() { - return @mysqli_insert_id($this->conn_id); + return $this->conn_id->insert_id; } // -------------------------------------------------------------------- @@ -433,44 +433,7 @@ class CI_DB_mysqli_driver extends CI_DB { */ public function error() { - return array('code' => mysqli_errno($this->conn_id), 'message' => mysqli_error($this->conn_id)); - } - - // -------------------------------------------------------------------- - - /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $item = str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item); - } - } - - if (strpos($item, '.') !== FALSE) - { - $item = str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item); - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item.$this->_escape_char); + return array('code' => $this->conn_id->errno, 'message' => $this->conn_id->error); } // -------------------------------------------------------------------- @@ -497,85 +460,6 @@ class CI_DB_mysqli_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; - } - - // -------------------------------------------------------------------- - - /** - * Insert_batch statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert_batch($table, $keys, $values) - { - return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES '.implode(', ', $values); - } - - // -------------------------------------------------------------------- - - - /** - * Replace statement - * - * Generates a platform-specific replace string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _replace($table, $keys, $values) - { - return 'REPLACE INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; - } - - // -------------------------------------------------------------------- - - /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @return string - */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) - { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr) - .(($where != '' && count($where) > 0) ? ' WHERE '.implode(' ', $where) : '') - .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : '') - .( ! $limit ? '' : ' LIMIT '.$limit); - } - - // -------------------------------------------------------------------- - - /** * Update_Batch statement * * Generates a platform-specific batch update string from the supplied data @@ -619,52 +503,6 @@ class CI_DB_mysqli_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Truncate statement - * - * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" - * - * @param string the table name - * @return string - */ - protected function _truncate($table) - { - return 'TRUNCATE '.$table; - } - - // -------------------------------------------------------------------- - - /** - * Delete statement - * - * Generates a platform-specific delete string from the supplied data - * - * @param string the table name - * @param array the where clause - * @param string the limit clause - * @return string - */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) - { - $conditions = ''; - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE ".implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= ' AND '; - } - $conditions .= implode("\n", $like); - } - - return 'DELETE FROM '.$table.$conditions.( ! $limit ? '' : ' LIMIT '.$limit); - } - - // -------------------------------------------------------------------- - - /** * Limit string * * Generates a platform-specific LIMIT clause @@ -690,10 +528,11 @@ class CI_DB_mysqli_driver extends CI_DB { */ protected function _close($conn_id) { - @mysqli_close($conn_id); + $this->conn_id->close(); + $this->conn_id = FALSE; } } /* End of file mysqli_driver.php */ -/* Location: ./system/database/drivers/mysqli/mysqli_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/mysqli/mysqli_driver.php */ diff --git a/system/database/drivers/mysqli/mysqli_forge.php b/system/database/drivers/mysqli/mysqli_forge.php index 8cf0ae1fd..503574dfc 100644 --- a/system/database/drivers/mysqli/mysqli_forge.php +++ b/system/database/drivers/mysqli/mysqli_forge.php @@ -34,31 +34,7 @@ */ class CI_DB_mysqli_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return string - */ - public function _create_database($name) - { - return 'CREATE DATABASE '.$name; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return string - */ - public function _drop_database($name) - { - return 'DROP DATABASE '.$name; - } - - // -------------------------------------------------------------------- + protected $_create_database = 'CREATE DATABASE %s CHARACTER SET %s COLLATE %s'; /** * Process Fields @@ -139,7 +115,7 @@ class CI_DB_mysqli_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -148,7 +124,7 @@ class CI_DB_mysqli_forge extends CI_DB_forge { $sql .= 'IF NOT EXISTS '; } - $sql .= $this->db->_escape_identifiers($table).' ('.$this->_process_fields($fields); + $sql .= $this->db->escape_identifiers($table).' ('.$this->_process_fields($fields); if (count($primary_keys) > 0) { @@ -181,18 +157,6 @@ class CI_DB_mysqli_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @return string - */ - public function _drop_table($table) - { - return 'DROP TABLE IF EXISTS '.$this->db->_escape_identifiers($table); - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -204,7 +168,7 @@ class CI_DB_mysqli_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $fields, $after_field = '') + protected function _alter_table($alter_type, $table, $fields, $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '; @@ -218,22 +182,6 @@ class CI_DB_mysqli_forge extends CI_DB_forge { .($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : ''); } - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } - } /* End of file mysqli_forge.php */ diff --git a/system/database/drivers/mysqli/mysqli_result.php b/system/database/drivers/mysqli/mysqli_result.php index 83d88aae3..9b4d494d4 100644 --- a/system/database/drivers/mysqli/mysqli_result.php +++ b/system/database/drivers/mysqli/mysqli_result.php @@ -43,7 +43,7 @@ class CI_DB_mysqli_result extends CI_DB_result { */ public function num_rows() { - return @mysqli_num_rows($this->result_id); + return $this->result_id->num_rows; } // -------------------------------------------------------------------- @@ -55,7 +55,7 @@ class CI_DB_mysqli_result extends CI_DB_result { */ public function num_fields() { - return @mysqli_num_fields($this->result_id); + return $this->result_id->field_count; } // -------------------------------------------------------------------- @@ -70,7 +70,7 @@ class CI_DB_mysqli_result extends CI_DB_result { public function list_fields() { $field_names = array(); - while ($field = mysqli_fetch_field($this->result_id)) + while ($field = $this->result_id->fetch_field()) { $field_names[] = $field->name; } @@ -90,7 +90,7 @@ class CI_DB_mysqli_result extends CI_DB_result { public function field_data() { $retval = array(); - $field_data = mysqli_fetch_fields($this->result_id); + $field_data = $this->result_id->fetch_fields(); for ($i = 0, $c = count($field_data); $i < $c; $i++) { $retval[$i] = new stdClass(); @@ -115,7 +115,7 @@ class CI_DB_mysqli_result extends CI_DB_result { { if (is_object($this->result_id)) { - mysqli_free_result($this->result_id); + $this->result_id->free(); $this->result_id = FALSE; } } @@ -125,15 +125,15 @@ class CI_DB_mysqli_result extends CI_DB_result { /** * Data Seek * - * Moves the internal pointer to the desired offset. We call + * Moves the internal pointer to the desired offset. We call * this internally before fetching results to make sure the * result set starts at zero * - * @return array + * @return bool */ protected function _data_seek($n = 0) { - return mysqli_data_seek($this->result_id, $n); + return $this->result_id->data_seek($n); } // -------------------------------------------------------------------- @@ -147,7 +147,7 @@ class CI_DB_mysqli_result extends CI_DB_result { */ protected function _fetch_assoc() { - return mysqli_fetch_assoc($this->result_id); + return $this->result_id->fetch_assoc(); } // -------------------------------------------------------------------- @@ -161,7 +161,7 @@ class CI_DB_mysqli_result extends CI_DB_result { */ protected function _fetch_object() { - return mysqli_fetch_object($this->result_id); + return $this->result_id->fetch_object(); } } diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php index 4d7002e78..27d4ef817 100644 --- a/system/database/drivers/mysqli/mysqli_utility.php +++ b/system/database/drivers/mysqli/mysqli_utility.php @@ -34,47 +34,9 @@ */ class CI_DB_mysqli_utility extends CI_DB_utility { - /** - * List databases - * - * @return string - */ - public function _list_databases() - { - return 'SHOW DATABASES'; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return string - */ - public function _optimize_table($table) - { - return 'OPTIMIZE TABLE '.$this->db->_escape_identifiers($table); - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return string - */ - public function _repair_table($table) - { - return 'REPAIR TABLE '.$this->db->_escape_identifiers($table); - } - - // -------------------------------------------------------------------- + protected $_list_databases = 'SHOW DATABASES'; + protected $_optimize_table = 'OPTIMIZE TABLE %s'; + protected $_repair_table = 'REPAIR TABLE %s'; /** * MySQLi Export @@ -82,7 +44,7 @@ class CI_DB_mysqli_utility extends CI_DB_utility { * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php index 3bc8c114c..33a89df94 100644 --- a/system/database/drivers/oci8/oci8_driver.php +++ b/system/database/drivers/oci8/oci8_driver.php @@ -29,7 +29,7 @@ * oci8 Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -46,7 +46,6 @@ * permit access to oracle databases * * @author Kelly McArdle - * */ class CI_DB_oci8_driver extends CI_DB { @@ -68,7 +67,7 @@ class CI_DB_oci8_driver extends CI_DB { protected $_random_keyword = ' ASC'; // not currently supported // Set "auto commit" by default - protected $_commit = OCI_COMMIT_ON_SUCCESS; + public $commit_mode = OCI_COMMIT_ON_SUCCESS; // need to track statement id and cursor id public $stmt_id; @@ -186,19 +185,6 @@ class CI_DB_oci8_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Select the database - * - * @return resource - */ - public function db_select() - { - // Not in Oracle - schemas are actually usernames - return TRUE; - } - - // -------------------------------------------------------------------- - - /** * Database version number * * @return string @@ -220,12 +206,13 @@ class CI_DB_oci8_driver extends CI_DB { */ protected function _execute($sql) { - // oracle must parse the query before it is run. All of the actions with - // the query are based on the statement id returned by ociparse + /* Oracle must parse the query before it is run. All of the actions with + * the query are based on the statement id returned by oci_parse(). + */ $this->stmt_id = FALSE; $this->_set_stmt_id($sql); oci_set_prefetch($this->stmt_id, 1000); - return @oci_execute($this->stmt_id, $this->_commit); + return @oci_execute($this->stmt_id, $this->commit_mode); } /** @@ -251,8 +238,7 @@ class CI_DB_oci8_driver extends CI_DB { */ public function get_cursor() { - $this->curs_id = oci_new_cursor($this->conn_id); - return $this->curs_id; + return $this->curs_id = oci_new_cursor($this->conn_id); } // -------------------------------------------------------------------- @@ -260,19 +246,19 @@ class CI_DB_oci8_driver extends CI_DB { /** * Stored Procedure. Executes a stored procedure * - * @param string package stored procedure is in - * @param string stored procedure to execute + * @param string package name in which the stored procedure is in + * @param string stored procedure name to execute * @param array parameters - * @return object + * @return mixed * * params array keys * * KEY OPTIONAL NOTES - * name no the name of the parameter should be in :<param_name> format - * value no the value of the parameter. If this is an OUT or IN OUT parameter, - * this should be a reference to a variable - * type yes the type of the parameter - * length yes the max size of the parameter + * name no the name of the parameter should be in :<param_name> format + * value no the value of the parameter. If this is an OUT or IN OUT parameter, + * this should be a reference to a variable + * type yes the type of the parameter + * length yes the max size of the parameter */ public function stored_procedure($package, $procedure, $params) { @@ -287,24 +273,24 @@ class CI_DB_oci8_driver extends CI_DB { } // build the query string - $sql = "begin $package.$procedure("; + $sql = 'BEGIN '.$package.'.'.$procedure.'('; $have_cursor = FALSE; foreach ($params as $param) { - $sql .= $param['name'] . ","; + $sql .= $param['name'].','; - if (array_key_exists('type', $param) && ($param['type'] === OCI_B_CURSOR)) + if (isset($param['type']) && $param['type'] === OCI_B_CURSOR) { $have_cursor = TRUE; } } - $sql = trim($sql, ",") . "); end;"; + $sql = trim($sql, ',') . '); END;'; $this->stmt_id = FALSE; $this->_set_stmt_id($sql); $this->_bind_params($params); - $this->query($sql, FALSE, $have_cursor); + return $this->query($sql, FALSE, $have_cursor); } // -------------------------------------------------------------------- @@ -360,7 +346,7 @@ class CI_DB_oci8_driver extends CI_DB { // even if the queries produce a successful result. $this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE; - $this->_commit = OCI_DEFAULT; + $this->commit_mode = (is_php('5.3.2')) ? OCI_NO_AUTO_COMMIT : OCI_DEFAULT; return TRUE; } @@ -384,9 +370,8 @@ class CI_DB_oci8_driver extends CI_DB { return TRUE; } - $ret = oci_commit($this->conn_id); - $this->_commit = OCI_COMMIT_ON_SUCCESS; - return $ret; + $this->commit_mode = OCI_COMMIT_ON_SUCCESS; + return oci_commit($this->conn_id); } // -------------------------------------------------------------------- @@ -398,20 +383,14 @@ class CI_DB_oci8_driver extends CI_DB { */ public function trans_rollback() { - if ( ! $this->trans_enabled) - { - return TRUE; - } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) { return TRUE; } - $ret = oci_rollback($this->conn_id); - $this->_commit = OCI_COMMIT_ON_SUCCESS; - return $ret; + $this->commit_mode = OCI_COMMIT_ON_SUCCESS; + return oci_rollback($this->conn_id); } // -------------------------------------------------------------------- @@ -482,7 +461,7 @@ class CI_DB_oci8_driver extends CI_DB { * the specified database * * @param string - * @return string + * @return int */ public function count_all($table = '') { @@ -514,11 +493,11 @@ class CI_DB_oci8_driver extends CI_DB { */ protected function _list_tables($prefix_limit = FALSE) { - $sql = "SELECT TABLE_NAME FROM ALL_TABLES"; + $sql = 'SELECT TABLE_NAME FROM ALL_TABLES'; - if ($prefix_limit !== FALSE AND $this->dbprefix != '') + if ($prefix_limit !== FALSE && $this->dbprefix != '') { - $sql .= " WHERE TABLE_NAME LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr); + return $sql." WHERE TABLE_NAME LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr); } return $sql; @@ -536,7 +515,7 @@ class CI_DB_oci8_driver extends CI_DB { */ protected function _list_columns($table = '') { - return "SELECT COLUMN_NAME FROM all_tab_columns WHERE table_name = '$table'"; + return 'SELECT COLUMN_NAME FROM all_tab_columns WHERE table_name = \''.$table.'\''; } // -------------------------------------------------------------------- @@ -551,7 +530,7 @@ class CI_DB_oci8_driver extends CI_DB { */ protected function _field_data($table) { - return "SELECT * FROM ".$table." where rownum = 1"; + return 'SELECT * FROM '.$table.' WHERE rownum = 1'; } // -------------------------------------------------------------------- @@ -588,47 +567,6 @@ class CI_DB_oci8_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -639,29 +577,7 @@ class CI_DB_oci8_driver extends CI_DB { */ protected function _from_tables($tables) { - if ( ! is_array($tables)) - { - $tables = array($tables); - } - - return implode(', ', $tables); - } - - // -------------------------------------------------------------------- - - /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; + return is_array($tables) ? implode(', ', $tables) : $tables; } // -------------------------------------------------------------------- @@ -683,46 +599,10 @@ class CI_DB_oci8_driver extends CI_DB { for ($i = 0, $c = count($values); $i < $c; $i++) { - $sql .= ' INTO ' . $table . ' (' . $keys . ') VALUES ' . $values[$i] . "\n"; - } - - $sql .= 'SELECT * FROM dual'; - - return $sql; - } - - // -------------------------------------------------------------------- - - /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @return string - */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) - { - foreach ($values as $key => $val) - { - $valstr[] = $key." = ".$val; + $sql .= ' INTO '.$table.' ('.$keys.') VALUES '.$values[$i]."\n"; } - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):''; - - $sql = "UPDATE ".$table." SET ".implode(', ', $valstr); - - $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : ''; - - $sql .= $orderby.$limit; - - return $sql; + return $sql.'SELECT * FROM dual'; } // -------------------------------------------------------------------- @@ -731,15 +611,16 @@ class CI_DB_oci8_driver extends CI_DB { * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" + * + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' * * @param string the table name * @return string */ protected function _truncate($table) { - return "TRUNCATE TABLE ".$table; + return 'TRUNCATE TABLE '.$table; } // -------------------------------------------------------------------- @@ -751,28 +632,19 @@ class CI_DB_oci8_driver extends CI_DB { * * @param string the table name * @param array the where clause + * @param array the like clause * @param string the limit clause * @return string */ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - $conditions .= implode("\n", $like); - } + $conditions = array(); - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; + empty($where) OR $conditions[] = implode(' ', $where); + empty($like) OR $conditions[] = implode(' ', $like); + empty($limit) OR $conditions[] = 'rownum <= '.$limit; - return "DELETE FROM ".$table.$conditions.$limit; + return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); } // -------------------------------------------------------------------- @@ -789,18 +661,9 @@ class CI_DB_oci8_driver extends CI_DB { */ protected function _limit($sql, $limit, $offset) { - $limit = $offset + $limit; - $newsql = "SELECT * FROM (select inner_query.*, rownum rnum FROM ($sql) inner_query WHERE rownum < $limit)"; - - if ($offset != 0) - { - $newsql .= " WHERE rnum >= $offset"; - } - - // remember that we used limits $this->limit_used = TRUE; - - return $newsql; + return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($offset + $limit).')' + .($offset != 0 ? ' WHERE rnum >= '.$offset : ''); } // -------------------------------------------------------------------- @@ -819,4 +682,4 @@ class CI_DB_oci8_driver extends CI_DB { } /* End of file oci8_driver.php */ -/* Location: ./system/database/drivers/oci8/oci8_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/oci8/oci8_driver.php */ diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php index 8285a29d2..bd265b6e0 100644 --- a/system/database/drivers/oci8/oci8_forge.php +++ b/system/database/drivers/oci8/oci8_forge.php @@ -34,31 +34,9 @@ */ class CI_DB_oci8_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return bool - */ - public function _create_database($name) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return bool - */ - public function _drop_database($name) - { - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_create_database = FALSE; + protected $_drop_database = FALSE; + protected $_drop_table = 'DROP TABLE %s'; /** * Create Table @@ -68,9 +46,9 @@ class CI_DB_oci8_forge extends CI_DB_forge { * @param mixed primary key(s) * @param mixed key(s) * @param bool should 'IF NOT EXISTS' be added to the SQL - * @return bool + * @return string */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -79,7 +57,7 @@ class CI_DB_oci8_forge extends CI_DB_forge { $sql .= 'IF NOT EXISTS '; } - $sql .= $this->db->_escape_identifiers($table).' ('; + $sql .= $this->db->escape_identifiers($table).' ('; $current_field_count = 0; foreach ($fields as $field => $attributes) @@ -128,7 +106,7 @@ class CI_DB_oci8_forge extends CI_DB_forge { $key = array($this->db->protect_identifiers($key)); } - $sql .= ",\n\tUNIQUE COLUMNS (".implode(', ', $key).")"; + $sql .= ",\n\tUNIQUE COLUMNS (".implode(', ', $key).')'; } } @@ -138,18 +116,6 @@ class CI_DB_oci8_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @return bool - */ - public function _drop_table($table) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -164,55 +130,21 @@ class CI_DB_oci8_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') + protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name); // DROP has everything it needs now. - if ($alter_type == 'DROP') + if ($alter_type === 'DROP') { return $sql; } - $sql .= " $column_definition"; - - if ($default_value != '') - { - $sql .= " DEFAULT \"$default_value\""; - } - - if ($null === NULL) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - - if ($after_field != '') - { - return $sql.' AFTER '.$this->db->protect_identifiers($after_field); - } + return $sql.' '.$column_definition + .($default_value != '' ? ' DEFAULT "'.$default_value.'"' : '') + .($null === NULL ? ' NULL' : ' NOT NULL') + .($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : ''); - return $sql; - - } - - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); } } diff --git a/system/database/drivers/oci8/oci8_result.php b/system/database/drivers/oci8/oci8_result.php index c3f775730..7b05e0a43 100644 --- a/system/database/drivers/oci8/oci8_result.php +++ b/system/database/drivers/oci8/oci8_result.php @@ -39,6 +39,12 @@ class CI_DB_oci8_result extends CI_DB_result { public $stmt_id; public $curs_id; public $limit_used; + public $commit_mode; + + /* Overwriting the parent here, so we have a way to know if it's + * already called or not: + */ + public $num_rows; public function __construct(&$driver_object) { @@ -46,28 +52,32 @@ class CI_DB_oci8_result extends CI_DB_result { $this->stmt_id = $driver_object->stmt_id; $this->curs_id = $driver_object->curs_id; $this->limit_used = $driver_object->limit_used; + $this->commit_mode =& $driver_object->commit_mode; $driver_object->stmt_id = FALSE; } /** * Number of rows in the result set. * - * Oracle doesn't have a graceful way to retun the number of rows + * Oracle doesn't have a graceful way to return the number of rows * so we have to use what amounts to a hack. * * @return int */ public function num_rows() { - if ($this->num_rows === 0 && count($this->result_array()) > 0) + if ( ! is_int($this->num_rows)) { - $this->num_rows = count($this->result_array()); - @oci_execute($this->stmt_id, OCI_DEFAULT); - - if ($this->curs_id) + if (count($this->result_array) > 0) + { + return $this->num_rows = count($this->result_array); + } + elseif (count($this->result_object) > 0) { - @oci_execute($this->curs_id, OCI_DEFAULT); + return $this->num_rows = count($this->result_object); } + + return $this->num_rows = count($this->result_array()); } return $this->num_rows; @@ -85,12 +95,7 @@ class CI_DB_oci8_result extends CI_DB_result { $count = @oci_num_fields($this->stmt_id); // if we used a limit we subtract it - if ($this->limit_used) - { - $count = $count - 1; - } - - return $count; + return ($this->limit_used) ? $count - 1 : $count; } // -------------------------------------------------------------------- @@ -126,10 +131,10 @@ class CI_DB_oci8_result extends CI_DB_result { $retval = array(); for ($c = 1, $fieldCount = $this->num_fields(); $c <= $fieldCount; $c++) { - $F = new stdClass(); - $F->name = oci_field_name($this->stmt_id, $c); - $F->type = oci_field_type($this->stmt_id, $c); - $F->max_length = oci_field_size($this->stmt_id, $c); + $F = new stdClass(); + $F->name = oci_field_name($this->stmt_id, $c); + $F->type = oci_field_type($this->stmt_id, $c); + $F->max_length = oci_field_size($this->stmt_id, $c); $retval[] = $F; } @@ -151,6 +156,17 @@ class CI_DB_oci8_result extends CI_DB_result { oci_free_statement($this->result_id); $this->result_id = FALSE; } + + if (is_resource($this->stmt_id)) + { + oci_free_statement($this->stmt_id); + } + + if (is_resource($this->curs_id)) + { + oci_cancel($this->curs_id); + $this->curs_id = NULL; + } } // -------------------------------------------------------------------- @@ -180,13 +196,13 @@ class CI_DB_oci8_result extends CI_DB_result { protected function _fetch_object() { $id = ($this->curs_id) ? $this->curs_id : $this->stmt_id; - return @oci_fetch_object($id); + return oci_fetch_object($id); } // -------------------------------------------------------------------- /** - * Query result. "array" version. + * Query result. Array version. * * @return array */ @@ -196,14 +212,429 @@ class CI_DB_oci8_result extends CI_DB_result { { return $this->result_array; } + elseif (count($this->result_object) > 0) + { + for ($i = 0, $c = count($this->result_object); $i < $c; $i++) + { + $this->result_array[$i] = (array) $this->result_object[$i]; + } + + return $this->result_array; + } + elseif (is_array($this->row_data)) + { + if (count($this->row_data) === 0) + { + return $this->result_array; + } + else + { + $row_index = count($this->row_data); + } + } + else + { + $row_index = 0; + $this->row_data = array(); + } $row = NULL; while ($row = $this->_fetch_assoc()) { - $this->result_array[] = $row; + $this->row_data[$row_index++] = $row; + } + + return $this->result_array = $this->row_data; + } + + // -------------------------------------------------------------------- + + /** + * Query result. "object" version. + * + * @return array + */ + public function result_object() + { + if (count($this->result_object) > 0) + { + return $this->result_object; + } + elseif (count($this->result_array) > 0) + { + for ($i = 0, $c = count($this->result_array); $i < $c; $i++) + { + $this->result_object[] = (object) $this->result_array[$i]; + } + + return $this->result_object; + } + elseif (is_array($this->row_data)) + { + if (count($this->row_data) === 0) + { + return $this->result_object; + } + else + { + $row_index = count($this->row_data); + for ($i = 0; $i < $row_index; $i++) + { + $this->result_object[$i] = (object) $this->row_data[$i]; + } + } + } + else + { + $row_index = 0; + $this->row_data = array(); + } + + $row = NULL; + while ($row = $this->_fetch_object()) + { + $this->row_data[$row_index] = (array) $row; + $this->result_object[$row_index++] = $row; + } + + return $this->result_object; + } + + // -------------------------------------------------------------------- + + /** + * Query result. Custom object version. + * + * @param string class name used to instantiate rows to + * @return array + */ + public function custom_result_object($class_name) + { + if (isset($this->custom_result_object[$class_name])) + { + return $this->custom_result_object[$class_name]; + } + + if ( ! class_exists($class_name) OR $this->result_id === FALSE OR $this->num_rows() === 0) + { + return array(); + } + + /* Even if we didn't have result_array or result_object + * set prior to custom_result_object() being called, + * num_rows() has already done so. + * Pass by reference, as we don't know how + * large it might be and we don't want 1000 row + * sets being copied. + */ + if (count($this->result_array) > 0) + { + $data = &$this->result_array; + } + elseif (count($this->result_object) > 0) + { + $data = &$this->result_object; + } + + $this->custom_result_object[$class_name] = array(); + for ($i = 0, $c = count($data); $i < $c; $i++) + { + $this->custom_result_object[$class_name][$i] = new $class_name(); + foreach ($data[$i] as $key => $value) + { + $this->custom_result_object[$class_name][$i]->$key = $value; + } + } + + return $this->custom_result_object[$class_name]; + } + + // -------------------------------------------------------------------- + + /* Single row result. + * + * Acts as a wrapper for row_object(), row_array() + * and custom_row_object(). Also used by first_row(), next_row() + * and previous_row(). + * + * @param int row index + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function row($n = 0, $type = 'object') + { + if ($type === 'object') + { + return $this->row_object($n); + } + elseif ($type === 'array') + { + return $this->row_array($n); + } + + return $this->custom_row_object($n, $type); + } + + // -------------------------------------------------------------------- + + /* Single row result. Array version. + * + * @param int row index + * @return array + */ + public function row_array($n = 0) + { + // Make sure $n is not a string + if ( ! is_int($n)) + { + $n = (int) $n; + } + + /* If row_data is initialized, it means that we've already tried + * (at least) to fetch some data, so ... check if we already have + * this row. + */ + if (is_array($this->row_data)) + { + /* If we already have row_data[$n] - return it. + * + * If we enter the elseif, there's a number of reasons to + * return an empty array: + * + * - count($this->row_data) === 0 means there are no results + * - num_rows being set, result_array and/or result_object + * having count() > 0 means that we've already fetched all + * data and $n is greater than our highest row index available + * - $n < $this->current_row means that if such row existed, + * we would've already returned it, therefore $n is an + * invalid index + */ + if (isset($this->row_data[$n])) // We already have this row + { + $this->current_row = $n; + return $this->row_data[$n]; + } + elseif (count($this->row_data) === 0 OR is_int($this->num_rows) + OR count($this->result_array) > 0 OR count($this->result_object) > 0 + OR $n < $this->current_row) + { + // No such row exists + return array(); + } + + // Get the next row index that would actually need to be fetched + $current_row = ($this->current_row < count($this->row_data)) ? count($this->row_data) : $this->current_row + 1; + } + else + { + $current_row = $this->current_row = 0; + $this->row_data = array(); + } + + /* Fetch more data, if available + * + * NOTE: Operator precedence is important here, if you change + * 'AND' with '&&' - it WILL BREAK the results, as + * $row will be assigned the scalar value of both + * expressions! + */ + while ($row = $this->_fetch_assoc() AND $current_row <= $n) + { + $this->row_data[$current_row++] = $row; } - return $this->result_array; + // This would mean that there's no (more) data to fetch + if ( ! is_array($this->row_data) OR ! isset($this->row_data[$n])) + { + // Cache what we already have + if (is_array($this->row_data)) + { + $this->num_rows = count($this->row_data); + /* Usually, row_data could have less elements than result_array, + * but at this point - they should be exactly the same. + */ + $this->result_array = $this->row_data; + } + else + { + $this->num_rows = 0; + } + + return array(); + } + + $this->current_row = $n; + return $this->row_data[$n]; + } + + // -------------------------------------------------------------------- + + /* Single row result. Object version. + * + * @param int row index + * @return mixed object if row found; empty array if not + */ + public function row_object($n = 0) + { + // Make sure $n is not a string + if ( ! is_int($n)) + { + $n = (int) $n; + } + /* Logic here is exactly the same as in row_array, + * except we have to cast row_data[$n] to an object. + * + * If we already have result_object though - we can + * directly return from it. + */ + if (isset($this->result_object[$n])) + { + $this->current_row = $n; + // Set this, if not already done. + if ( ! is_int($this->num_rows)) + { + $this->num_rows = count($this->result_object); + } + + return $this->result_object[$n]; + } + + $row = $this->row_array($n); + // Cast only if the row exists + if (count($row) > 0) + { + $this->current_row = $n; + return (object) $row; + } + + return array(); + } + + // -------------------------------------------------------------------- + + /* Single row result. Custom object version. + * + * @param int row index + * @param string custom class name + * @return mixed custom object if row found; empty array otherwise + */ + public function custom_row_object($n = 0, $class_name) + { + // Make sure $n is not a string + if ( ! is_int($n)) + { + $n = (int) $n; + } + + if (array_key_exists($class_name, $this->custom_result_object)) + { + /* We already have a the whole result set with this class_name, + * return the specified row if it exists, and an empty array if + * it doesn't. + */ + if (isset($this->custom_result_object[$class_name][$n])) + { + $this->current_row = $n; + return $this->custom_result_object[$class_name][$n]; + } + else + { + return array(); + } + } + elseif ( ! class_exists($class_name)) // No such class exists + { + return array(); + } + + $row = $this->row_array($n); + // An array would mean that the row doesn't exist + if (is_array($row)) + { + return $row; + } + + // Convert to the desired class and return + $row_object = new $class_name(); + foreach ($row as $key => $value) + { + $row_object->$key = $value; + } + + $this->current_row = $n; + return $row_object; + } + + // -------------------------------------------------------------------- + + /* First row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function first_row($type = 'object') + { + return $this->row(0, $type); + } + + // -------------------------------------------------------------------- + + /* Last row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function last_row($type = 'object') + { + $result = &$this->result($type); + if ( ! isset($this->num_rows)) + { + $this->num_rows = count($result); + } + $this->current_row = $this->num_rows - 1; + return $result[$this->current_row]; + } + + // -------------------------------------------------------------------- + + /* Next row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function next_row($type = 'object') + { + if (is_array($this->row_data)) + { + $count = count($this->row_data); + if ($this->current_row > $count OR ($this->current_row === 0 && $count === 0)) + { + $n = $count; + } + else + { + $n = $this->current_row + 1; + } + } + else + { + $n = 0; + } + + return $this->row($n, $type); + } + + // -------------------------------------------------------------------- + + /* Previous row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function previous_row($type = 'object') + { + $n = ($this->current_row !== 0) ? $this->current_row - 1 : 0; + return $this->row($n, $type); } // -------------------------------------------------------------------- @@ -213,13 +644,54 @@ class CI_DB_oci8_result extends CI_DB_result { * * Moves the internal pointer to the desired offset. We call * this internally before fetching results to make sure the - * result set starts at zero + * result set starts at zero. * - * @return array + * Oracle's PHP extension doesn't have an easy way of doing this + * and the only workaround is to (re)execute the statement or cursor + * in order to go to the first (zero) index of the result set. + * Then, we would need to "dummy" fetch ($n - 1) rows to get to the + * right one. + * + * This is as ridiculous as it sounds and it's the reason why every + * other method that is fetching data tries to use an already "cached" + * result set. Keeping this just in case it becomes needed at + * some point in the future, but it will only work for resetting the + * pointer to zero. + * + * @return bool */ - protected function _data_seek($n = 0) + protected function _data_seek() { - return FALSE; // Not needed + /* The PHP manual says that if OCI_NO_AUTO_COMMIT mode + * is used, and oci_rollback() and/or oci_commit() are + * not subsequently called - this will cause an unnecessary + * rollback to be triggered at the end of the script execution. + * + * Therefore we'll try to avoid using that mode flag + * if we're not currently in the middle of a transaction. + */ + if ($this->commit_mode !== OCI_COMMIT_ON_SUCCESS) + { + $result = @oci_execute($this->stmt_id, $this->commit_mode); + } + else + { + $result = @oci_execute($this->stmt_id); + } + + if ($result && $this->curs_id) + { + if ($this->commit_mode !== OCI_COMMIT_ON_SUCCESS) + { + return @oci_execute($this->curs_id, $this->commit_mode); + } + else + { + return @oci_execute($this->curs_id); + } + } + + return $result; } } diff --git a/system/database/drivers/oci8/oci8_utility.php b/system/database/drivers/oci8/oci8_utility.php index e303fb6cb..0183eda26 100644 --- a/system/database/drivers/oci8/oci8_utility.php +++ b/system/database/drivers/oci8/oci8_utility.php @@ -34,47 +34,7 @@ */ class CI_DB_oci8_utility extends CI_DB_utility { - /** - * List databases - * - * @return bool - */ - public function _list_databases() - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return bool - */ - public function _optimize_table($table) - { - return FALSE; // Is this supported in Oracle? - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return bool - */ - public function _repair_table($table) - { - return FALSE; // Is this supported in Oracle? - } - - // -------------------------------------------------------------------- + protected $_list_databases = 'SELECT username FROM dba_users'; // Schemas are actual usernames /** * Oracle Export @@ -82,7 +42,7 @@ class CI_DB_oci8_utility extends CI_DB_utility { * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php index ad773117f..e36f2d233 100644 --- a/system/database/drivers/odbc/odbc_driver.php +++ b/system/database/drivers/odbc/odbc_driver.php @@ -29,7 +29,7 @@ * ODBC Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -95,19 +95,6 @@ class CI_DB_odbc_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Select the database - * - * @return resource - */ - public function db_select() - { - // Not needed for ODBC - return TRUE; - } - - // -------------------------------------------------------------------- - - /** * Execute the query * * @param string an SQL query @@ -356,47 +343,6 @@ class CI_DB_odbc_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -418,103 +364,19 @@ class CI_DB_odbc_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @return string - */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) - { - foreach ($values as $key => $val) - { - $valstr[] = $key." = ".$val; - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):''; - - $sql = "UPDATE ".$table." SET ".implode(', ', $valstr); - - $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : ''; - - $sql .= $orderby.$limit; - - return $sql; - } - - - // -------------------------------------------------------------------- - - /** * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" * - * @param string the table name - * @return string - */ - protected function _truncate($table) - { - return $this->_delete($table); - } - - // -------------------------------------------------------------------- - - /** - * Delete statement - * - * Generates a platform-specific delete string from the supplied data + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' * * @param string the table name - * @param array the where clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _truncate($table) { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - $conditions .= implode("\n", $like); - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - return "DELETE FROM ".$table.$conditions.$limit; + return 'DELETE FROM '.$table; } // -------------------------------------------------------------------- @@ -551,4 +413,4 @@ class CI_DB_odbc_driver extends CI_DB { } /* End of file odbc_driver.php */ -/* Location: ./system/database/drivers/odbc/odbc_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/odbc/odbc_driver.php */ diff --git a/system/database/drivers/odbc/odbc_forge.php b/system/database/drivers/odbc/odbc_forge.php index 486a8dd7f..d59b8a911 100644 --- a/system/database/drivers/odbc/odbc_forge.php +++ b/system/database/drivers/odbc/odbc_forge.php @@ -34,43 +34,8 @@ */ class CI_DB_odbc_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return bool - */ - public function _create_database() - { - // ODBC has no "create database" command since it's - // designed to connect to an existing database - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return bool - */ - public function _drop_database($name) - { - // ODBC has no "drop database" command since it's - // designed to connect to an existing database - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_drop_database = 'DROP DATABASE %s'; + protected $_drop_table = 'DROP TABLE %s'; /** * Create Table @@ -82,7 +47,7 @@ class CI_DB_odbc_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -91,7 +56,7 @@ class CI_DB_odbc_forge extends CI_DB_forge { $sql .= 'IF NOT EXISTS '; } - $sql .= $this->db->_escape_identifiers($table)." ("; + $sql .= $this->db->escape_identifiers($table).' ('; $current_field_count = 0; foreach ($fields as $field => $attributes) @@ -179,23 +144,6 @@ class CI_DB_odbc_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @return bool - */ - public function _drop_table($table) - { - // Not a supported ODBC feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -210,7 +158,7 @@ class CI_DB_odbc_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') + protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name); @@ -245,23 +193,6 @@ class CI_DB_odbc_forge extends CI_DB_forge { } - - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } - } /* End of file odbc_forge.php */ diff --git a/system/database/drivers/odbc/odbc_result.php b/system/database/drivers/odbc/odbc_result.php index 30cc979ce..ecba5977e 100644 --- a/system/database/drivers/odbc/odbc_result.php +++ b/system/database/drivers/odbc/odbc_result.php @@ -140,22 +140,6 @@ class CI_DB_odbc_result extends CI_DB_result { // -------------------------------------------------------------------- /** - * Data Seek - * - * Moves the internal pointer to the desired offset. We call - * this internally before fetching results to make sure the - * result set starts at zero - * - * @return bool - */ - protected function _data_seek($n = 0) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** * Result - associative array * * Returns the result set as an array diff --git a/system/database/drivers/odbc/odbc_utility.php b/system/database/drivers/odbc/odbc_utility.php index 65445e96c..224d48d2b 100644 --- a/system/database/drivers/odbc/odbc_utility.php +++ b/system/database/drivers/odbc/odbc_utility.php @@ -34,62 +34,7 @@ */ class CI_DB_odbc_utility extends CI_DB_utility { - /** - * List databases - * - * @return bool - */ - public function _list_databases() - { - // Not sure if ODBC lets you list all databases... - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return bool - */ - public function _optimize_table($table) - { - // Not a supported ODBC feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return bool - */ - public function _repair_table($table) - { - // Not a supported ODBC feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_list_databases = FALSE; /** * ODBC Export @@ -97,7 +42,7 @@ class CI_DB_odbc_utility extends CI_DB_utility { * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php index f336eb0ab..89e69676d 100644 --- a/system/database/drivers/pdo/pdo_driver.php +++ b/system/database/drivers/pdo/pdo_driver.php @@ -29,7 +29,7 @@ * PDO Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -46,8 +46,8 @@ class CI_DB_pdo_driver extends CI_DB { protected $_escape_char = ''; // clause and character used for LIKE escape sequences - protected $_like_escape_str; - protected $_like_escape_chr; + protected $_like_escape_str = " ESCAPE '%s' "; + protected $_like_escape_chr = '!'; /** * The syntax to count rows is slightly different across different @@ -81,18 +81,17 @@ class CI_DB_pdo_driver extends CI_DB { // this one depends on the driver being used if ($this->pdodriver == 'mysql') { + $this->_escape_char = '`'; $this->_like_escape_str = ''; $this->_like_escape_chr = ''; } elseif ($this->pdodriver == 'odbc') { $this->_like_escape_str = " {escape '%s'} "; - $this->_like_escape_chr = '!'; } - else + elseif ( ! in_array($this->pdodriver, array('sqlsrv', 'mssql', 'dblib', 'sybase'))) { - $this->_like_escape_str = " ESCAPE '%s' "; - $this->_like_escape_chr = '!'; + $this->_escape_char = '"'; } $this->trans_enabled = FALSE; @@ -184,6 +183,8 @@ class CI_DB_pdo_driver extends CI_DB { } } + // -------------------------------------------------------------------- + /** * Non-persistent database connection * @@ -191,9 +192,7 @@ class CI_DB_pdo_driver extends CI_DB { */ public function db_connect() { - $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT; - - return $this->pdo_connect(); + return $this->_pdo_connect(); } // -------------------------------------------------------------------- @@ -205,10 +204,7 @@ class CI_DB_pdo_driver extends CI_DB { */ public function db_pconnect() { - $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT; - $this->options[PDO::ATTR_PERSISTENT] = TRUE; - - return $this->pdo_connect(); + return $this->_pdo_connect(TRUE); } // -------------------------------------------------------------------- @@ -216,20 +212,29 @@ class CI_DB_pdo_driver extends CI_DB { /** * PDO connection * + * @param bool * @return object */ - public function pdo_connect() + protected function _pdo_connect($persistent = FALSE) { - // Refer : http://php.net/manual/en/ref.pdo-mysql.connection.php - if ($this->pdodriver === 'mysql' && ! is_php('5.3.6')) + $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT; + $persistent === FALSE OR $this->options[PDO::ATTR_PERSISTENT] = TRUE; + + /* Prior to PHP 5.3.6, even if the charset was supplied in the DSN + * on connect - it was ignored. This is a work-around for the issue. + * + * Reference: http://www.php.net/manual/en/ref.pdo-mysql.connection.php + */ + if ($this->pdodriver === 'mysql' && ! is_php('5.3.6') && ! empty($this->char_set)) { - $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = "SET NAMES $this->char_set COLLATE '$this->dbcollat'"; + $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES '.$this->char_set + .( ! empty($this->db_collat) ? " COLLATE '".$this->dbcollat."'" : ''); } // Connecting... try { - $db = new PDO($this->dsn, $this->username, $this->password, $this->options); + return new PDO($this->dsn, $this->username, $this->password, $this->options); } catch (PDOException $e) { @@ -240,21 +245,6 @@ class CI_DB_pdo_driver extends CI_DB { return FALSE; } - - return $db; - } - - // -------------------------------------------------------------------- - - /** - * Select the database - * - * @return resource - */ - public function db_select() - { - // Not needed for PDO - return TRUE; } // -------------------------------------------------------------------- @@ -281,46 +271,7 @@ class CI_DB_pdo_driver extends CI_DB { */ protected function _execute($sql) { - $sql = $this->_prep_query($sql); - - $result_id = $this->conn_id->query($sql); - - if (is_object($result_id)) - { - $this->affect_rows = $result_id->rowCount(); - } - else - { - $this->affect_rows = 0; - } - - return $result_id; - } - - // -------------------------------------------------------------------- - - /** - * Prep the query - * - * If needed, each database adapter can prep the query string - * - * @param string an SQL query - * @return string - */ - protected function _prep_query($sql) - { - if ($this->pdodriver === 'pgsql') - { - // Change the backtick(s) for Postgre - $sql = str_replace('`', '"', $sql); - } - elseif ($this->pdodriver === 'sqlite') - { - // Change the backtick(s) for SQLite - $sql = str_replace('`', '', $sql); - } - - return $sql; + return $this->conn_id->query($sql); } // -------------------------------------------------------------------- @@ -332,13 +283,8 @@ class CI_DB_pdo_driver extends CI_DB { */ public function trans_begin($test_mode = FALSE) { - if ( ! $this->trans_enabled) - { - return TRUE; - } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) { return TRUE; } @@ -346,7 +292,7 @@ class CI_DB_pdo_driver extends CI_DB { // Reset the transaction failure flag. // If the $test_mode flag is set to TRUE transactions will be rolled back // even if the queries produce a successful result. - $this->_trans_failure = (bool) ($test_mode === TRUE); + $this->_trans_failure = ($test_mode === TRUE); return $this->conn_id->beginTransaction(); } @@ -360,20 +306,13 @@ class CI_DB_pdo_driver extends CI_DB { */ public function trans_commit() { - if ( ! $this->trans_enabled) - { - return TRUE; - } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) { return TRUE; } - $ret = $this->conn->commit(); - - return $ret; + return $this->conn_id->commit(); } // -------------------------------------------------------------------- @@ -385,20 +324,13 @@ class CI_DB_pdo_driver extends CI_DB { */ public function trans_rollback() { - if ( ! $this->trans_enabled) - { - return TRUE; - } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) { return TRUE; } - $ret = $this->conn_id->rollBack(); - - return $ret; + return $this->conn_id->rollBack(); } // -------------------------------------------------------------------- @@ -422,10 +354,10 @@ class CI_DB_pdo_driver extends CI_DB { return $str; } - //Escape the string + // Escape the string $str = $this->conn_id->quote($str); - //If there are duplicated quotes, trim them away + // If there are duplicated quotes, trim them away if (strpos($str, "'") === 0) { $str = substr($str, 1, -1); @@ -451,7 +383,7 @@ class CI_DB_pdo_driver extends CI_DB { */ public function affected_rows() { - return $this->affect_rows; + return is_object($this->result_id) ? $this->result_id->rowCount() : 0; } // -------------------------------------------------------------------- @@ -459,6 +391,7 @@ class CI_DB_pdo_driver extends CI_DB { /** * Insert ID * + * @param string * @return int */ public function insert_id($name = NULL) @@ -529,7 +462,7 @@ class CI_DB_pdo_driver extends CI_DB { } else { - $sql = "SHOW TABLES FROM `".$this->database."`"; + $sql = 'SHOW TABLES FROM '.$this->escape_identifiers($this->database); } if ($prefix_limit !== FALSE AND $this->dbprefix != '') @@ -552,7 +485,7 @@ class CI_DB_pdo_driver extends CI_DB { */ protected function _list_columns($table = '') { - return 'SHOW COLUMNS FROM '.$this->_from_tables($table); + return 'SHOW COLUMNS FROM '.$this->escape_identifiers($table); } // -------------------------------------------------------------------- @@ -570,20 +503,20 @@ class CI_DB_pdo_driver extends CI_DB { if ($this->pdodriver == 'mysql' or $this->pdodriver == 'pgsql') { // Analog function for mysql and postgre - return 'SELECT * FROM '.$this->_from_tables($table).' LIMIT 1'; + return 'SELECT * FROM '.$this->escape_identifiers($table).' LIMIT 1'; } elseif ($this->pdodriver == 'oci') { // Analog function for oci - return 'SELECT * FROM '.$this->_from_tables($table).' WHERE ROWNUM <= 1'; + return 'SELECT * FROM '.$this->escape_identifiers($table).' WHERE ROWNUM <= 1'; } elseif ($this->pdodriver == 'sqlite') { // Analog function for sqlite - return 'PRAGMA table_info('.$this->_from_tables($table).')'; + return 'PRAGMA table_info('.$this->escape_identifiers($table).')'; } - return 'SELECT TOP 1 FROM '.$this->_from_tables($table); + return 'SELECT TOP 1 FROM '.$this->escape_identifiers($table); } // -------------------------------------------------------------------- @@ -618,48 +551,6 @@ class CI_DB_pdo_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item); - $str .= $this->_escape_char; - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -675,72 +566,7 @@ class CI_DB_pdo_driver extends CI_DB { $tables = array($tables); } - return (count($tables) == 1) ? '`'.$tables[0].'`' : '('.implode(', ', $tables).')'; - } - - // -------------------------------------------------------------------- - - /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return 'INSERT INTO '.$this->_from_tables($table).' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; - } - - // -------------------------------------------------------------------- - - /** - * Insert_batch statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert_batch($table, $keys, $values) - { - return 'INSERT INTO '.$this->_from_tables($table).' ('.implode(', ', $keys).') VALUES '.implode(', ', $values); - } - - // -------------------------------------------------------------------- - - /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @return string - */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) - { - foreach ($values as $key => $val) - { - $valstr[] = $key." = ".$val; - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - $orderby = (count($orderby) >= 1) ? ' ORDER BY '.implode(', ', $orderby) : ''; - - $sql = 'UPDATE '.$this->_from_tables($table).' SET '.implode(', ', $valstr); - $sql .= ($where != '' && count($where) >= 1) ? ' WHERE '.implode(' ', $where) : ''; - $sql .= $orderby.$limit; - - return $sql; + return (count($tables) === 1) ? $tables[0] : '('.implode(', ', $tables).')'; } // -------------------------------------------------------------------- @@ -773,7 +599,7 @@ class CI_DB_pdo_driver extends CI_DB { } } - $sql = 'UPDATE '.$this->_from_tables($table).' SET '; + $sql = 'UPDATE '.$table.' SET '; $cases = ''; foreach ($final as $k => $v) @@ -800,49 +626,16 @@ class CI_DB_pdo_driver extends CI_DB { * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" * - * @param string the table name - * @return string - */ - protected function _truncate($table) - { - return $this->_delete($table); - } - - // -------------------------------------------------------------------- - - /** - * Delete statement - * - * Generates a platform-specific delete string from the supplied data + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' * * @param string the table name - * @param array the where clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _truncate($table) { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - - $conditions .= implode("\n", $like); - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - return 'DELETE FROM '.$this->_from_tables($table).$conditions.$limit; + return 'DELETE FROM '.$table; } // -------------------------------------------------------------------- @@ -879,15 +672,15 @@ class CI_DB_pdo_driver extends CI_DB { /** * Close DB Connection * - * @param resource + * @param object * @return void */ protected function _close($conn_id) { - $this->conn_id = null; + $this->conn_id = NULL; } } /* End of file pdo_driver.php */ -/* Location: ./system/database/drivers/pdo/pdo_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/pdo/pdo_driver.php */ diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php index 6bff3542f..ca8657a0f 100644 --- a/system/database/drivers/pdo/pdo_forge.php +++ b/system/database/drivers/pdo/pdo_forge.php @@ -34,43 +34,8 @@ */ class CI_DB_pdo_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return bool - */ - public function _create_database() - { - // PDO has no "create database" command since it's - // designed to connect to an existing database - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return bool - */ - public function _drop_database($name) - { - // PDO has no "drop database" command since it's - // designed to connect to an existing database - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_drop_database = 'DROP DATABASE %s'; + protected $_drop_table = 'DROP TABLE %s'; /** * Create Table @@ -82,7 +47,7 @@ class CI_DB_pdo_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -91,10 +56,10 @@ class CI_DB_pdo_forge extends CI_DB_forge { $sql .= 'IF NOT EXISTS '; } - $sql .= '`'.$this->db->_escape_identifiers($table).'` ('; + $sql .= $this->db->escape_identifiers($table).' ('; $current_field_count = 0; - foreach ($fields as $field=>$attributes) + foreach ($fields as $field => $attributes) { // Numeric field names aren't allowed in databases, so if the key is // numeric, we know it was assigned by PHP and the developer manually @@ -184,23 +149,6 @@ class CI_DB_pdo_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @return bool - */ - public function _drop_table($table) - { - // Not a supported PDO feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -215,7 +163,7 @@ class CI_DB_pdo_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') + protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') { $sql = 'ALTER TABLE `'.$this->db->protect_identifiers($table).'` '.$alter_type.' '.$this->db->protect_identifiers($column_name); @@ -250,23 +198,6 @@ class CI_DB_pdo_forge extends CI_DB_forge { } - - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } - } /* End of file pdo_forge.php */ diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php index 5bbd85d75..19aee1dfc 100644 --- a/system/database/drivers/pdo/pdo_result.php +++ b/system/database/drivers/pdo/pdo_result.php @@ -92,7 +92,6 @@ class CI_DB_pdo_result extends CI_DB_result { $res_handler = 'result_'.$type; $this->$res_handler = array(); - $this->_data_seek(0); while ($row = $this->$res_method()) { @@ -228,22 +227,6 @@ class CI_DB_pdo_result extends CI_DB_result { // -------------------------------------------------------------------- /** - * Data Seek - * - * Moves the internal pointer to the desired offset. We call - * this internally before fetching results to make sure the - * result set starts at zero - * - * @return bool - */ - protected function _data_seek($n = 0) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** * Result - associative array * * Returns the result set as an array diff --git a/system/database/drivers/pdo/pdo_utility.php b/system/database/drivers/pdo/pdo_utility.php index 86c798397..930842118 100644 --- a/system/database/drivers/pdo/pdo_utility.php +++ b/system/database/drivers/pdo/pdo_utility.php @@ -34,62 +34,7 @@ */ class CI_DB_pdo_utility extends CI_DB_utility { - /** - * List databases - * - * @return bool - */ - public function _list_databases() - { - // Not sure if PDO lets you list all databases... - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return bool - */ - public function _optimize_table($table) - { - // Not a supported PDO feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return bool - */ - public function _repair_table($table) - { - // Not a supported PDO feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_list_databases = FALSE; /** * PDO Export @@ -97,7 +42,7 @@ class CI_DB_pdo_utility extends CI_DB_utility { * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php index 3e2d05ce8..84bf768ee 100644 --- a/system/database/drivers/postgre/postgre_driver.php +++ b/system/database/drivers/postgre/postgre_driver.php @@ -29,7 +29,7 @@ * Postgre Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -80,16 +80,16 @@ class CI_DB_postgre_driver extends CI_DB { $this->port = ''; } - $this->hostname === '' OR $this->dsn = 'host='.$this->hostname; + $this->hostname === '' OR $this->dsn = 'host='.$this->hostname.' '; if ( ! empty($this->port) && ctype_digit($this->port)) { - $this->dsn .= 'host='.$this->port.' '; + $this->dsn .= 'port='.$this->port.' '; } if ($this->username !== '') { - $this->dsn .= 'username='.$this->username.' '; + $this->dsn .= 'user='.$this->username.' '; /* An empty password is valid! * @@ -162,23 +162,10 @@ class CI_DB_postgre_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Select the database - * - * @return resource - */ - public function db_select() - { - // Not needed for Postgre so we'll return TRUE - return TRUE; - } - - // -------------------------------------------------------------------- - - /** * Set client character set * - * @param string - * @return bool + * @param string + * @return bool */ protected function _db_set_charset($charset) { @@ -232,6 +219,7 @@ class CI_DB_postgre_driver extends CI_DB { /** * Begin Transaction * + * @param bool * @return bool */ public function trans_begin($test_mode = FALSE) @@ -247,7 +235,7 @@ class CI_DB_postgre_driver extends CI_DB { // even if the queries produce a successful result. $this->_trans_failure = ($test_mode === TRUE); - return @pg_query($this->conn_id, 'BEGIN'); + return (bool) @pg_query($this->conn_id, 'BEGIN'); } // -------------------------------------------------------------------- @@ -265,7 +253,7 @@ class CI_DB_postgre_driver extends CI_DB { return TRUE; } - return @pg_query($this->conn_id, 'COMMIT'); + return (bool) @pg_query($this->conn_id, 'COMMIT'); } // -------------------------------------------------------------------- @@ -283,7 +271,7 @@ class CI_DB_postgre_driver extends CI_DB { return TRUE; } - return @pg_query($this->conn_id, 'ROLLBACK'); + return (bool) @pg_query($this->conn_id, 'ROLLBACK'); } // -------------------------------------------------------------------- @@ -341,34 +329,41 @@ class CI_DB_postgre_driver extends CI_DB { */ public function insert_id() { - $v = $this->version(); + $v = pg_version($this->conn_id); + $v = isset($v['server']) ? $v['server'] : 0; // 'server' key is only available since PosgreSQL 7.4 - $table = func_num_args() > 0 ? func_get_arg(0) : NULL; - $column = func_num_args() > 1 ? func_get_arg(1) : NULL; + $table = (func_num_args() > 0) ? func_get_arg(0) : NULL; + $column = (func_num_args() > 1) ? func_get_arg(1) : NULL; if ($table == NULL && $v >= '8.1') { - $sql='SELECT LASTVAL() as ins_id'; - } - elseif ($table != NULL && $column != NULL && $v >= '8.0') - { - $sql = sprintf("SELECT pg_get_serial_sequence('%s','%s') as seq", $table, $column); - $query = $this->query($sql); - $row = $query->row(); - $sql = sprintf("SELECT CURRVAL('%s') as ins_id", $row->seq); + $sql = 'SELECT LASTVAL() AS ins_id'; } elseif ($table != NULL) { - // seq_name passed in table parameter - $sql = sprintf("SELECT CURRVAL('%s') as ins_id", $table); + if ($column != NULL && $v >= '8.0') + { + $sql = 'SELECT pg_get_serial_sequence(\''.$table."', '".$column."') AS seq"; + $query = $this->query($sql); + $query = $query->row(); + $seq = $query->seq; + } + else + { + // seq_name passed in table parameter + $seq = $table; + } + + $sql = 'SELECT CURRVAL(\''.$seq."') AS ins_id"; } else { return pg_last_oid($this->result_id); } + $query = $this->query($sql); - $row = $query->row(); - return $row->ins_id; + $query = $query->row(); + return (int) $query->ins_id; } // -------------------------------------------------------------------- @@ -395,9 +390,9 @@ class CI_DB_postgre_driver extends CI_DB { return 0; } - $row = $query->row(); + $query = $query->row(); $this->_reset_select(); - return (int) $row->numrows; + return (int) $query->numrows; } // -------------------------------------------------------------------- @@ -414,9 +409,9 @@ class CI_DB_postgre_driver extends CI_DB { { $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'"; - if ($prefix_limit !== FALSE AND $this->dbprefix != '') + if ($prefix_limit !== FALSE && $this->dbprefix != '') { - $sql .= " AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr); + return $sql." AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr); } return $sql; @@ -434,7 +429,7 @@ class CI_DB_postgre_driver extends CI_DB { */ protected function _list_columns($table = '') { - return "SELECT column_name FROM information_schema.columns WHERE table_name ='".$table."'"; + return "SELECT column_name FROM information_schema.columns WHERE table_name = '".$table."'"; } // -------------------------------------------------------------------- @@ -445,11 +440,11 @@ class CI_DB_postgre_driver extends CI_DB { * Generates a platform-specific query so that the column data can be retrieved * * @param string the table name - * @return object + * @return string */ protected function _field_data($table) { - return "SELECT * FROM ".$table." LIMIT 1"; + return 'SELECT * FROM '.$table.' LIMIT 1'; } // -------------------------------------------------------------------- @@ -470,47 +465,6 @@ class CI_DB_postgre_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -532,40 +486,6 @@ class CI_DB_postgre_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - /** - * Insert_batch statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert_batch($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES ".implode(', ', $values); - } - - // -------------------------------------------------------------------- - - /** * Update statement * * Generates a platform-specific update string from the supplied data @@ -573,39 +493,26 @@ class CI_DB_postgre_driver extends CI_DB { * @param string the table name * @param array the update data * @param array the where clause - * @param array the orderby clause - * @param array the limit clause + * @param array the orderby clause (ignored) + * @param array the limit clause (ignored) + * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) + protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) { foreach ($values as $key => $val) { - $valstr[] = $key." = ".$val; + $valstr[] = $key.' = '.$val; } - $sql = "UPDATE ".$table." SET ".implode(', ', $valstr); - - $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : ''; - - return $sql; - } + $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - // -------------------------------------------------------------------- + if ( ! empty($like)) + { + $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); + } - /** - * Truncate statement - * - * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" - * - * @param string the table name - * @return string - */ - protected function _truncate($table) - { - return "TRUNCATE ".$table; + return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; } // -------------------------------------------------------------------- @@ -617,29 +524,22 @@ class CI_DB_postgre_driver extends CI_DB { * * @param string the table name * @param array the where clause - * @param string the limit clause + * @param array the like clause + * @param string the limit clause (ignored) * @return string */ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) { - $conditions = ''; + $conditions = array(); - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - $conditions .= implode("\n", $like); - } + empty($where) OR $conditions[] = implode(' ', $where); + empty($like) OR $conditions[] = implode(' ', $like); - return "DELETE FROM ".$table.$conditions; + return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); } // -------------------------------------------------------------------- + /** * Limit string * @@ -652,14 +552,7 @@ class CI_DB_postgre_driver extends CI_DB { */ protected function _limit($sql, $limit, $offset) { - $sql .= "LIMIT ".$limit; - - if ($offset > 0) - { - $sql .= " OFFSET ".$offset; - } - - return $sql; + return $sql.' LIMIT '.$limit.($offset == 0 ? '' : ' OFFSET '.$offset); } // -------------------------------------------------------------------- @@ -678,4 +571,4 @@ class CI_DB_postgre_driver extends CI_DB { } /* End of file postgre_driver.php */ -/* Location: ./system/database/drivers/postgre/postgre_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/postgre/postgre_driver.php */ diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php index a72449820..94c97af50 100644 --- a/system/database/drivers/postgre/postgre_forge.php +++ b/system/database/drivers/postgre/postgre_forge.php @@ -34,31 +34,7 @@ */ class CI_DB_postgre_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return bool - */ - public function _create_database($name) - { - return "CREATE DATABASE ".$name; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return bool - */ - public function _drop_database($name) - { - return "DROP DATABASE ".$name; - } - - // -------------------------------------------------------------------- + protected $_drop_table = 'DROP TABLE IF EXISTS %s CASCADE'; /** * Process Fields @@ -66,7 +42,7 @@ class CI_DB_postgre_forge extends CI_DB_forge { * @param mixed the fields * @return string */ - protected function _process_fields($fields, $primary_keys=array()) + protected function _process_fields($fields, $primary_keys = array()) { $sql = ''; $current_field_count = 0; @@ -78,15 +54,14 @@ class CI_DB_postgre_forge extends CI_DB_forge { // entered the field information, so we'll simply add it to the list if (is_numeric($field)) { - $sql .= "\n\t$attributes"; + $sql .= "\n\t".$attributes; } else { - $attributes = array_change_key_case($attributes, CASE_UPPER); - $sql .= "\n\t".$this->db->protect_identifiers($field); - $is_unsigned = (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE); + $attributes = array_change_key_case($attributes, CASE_UPPER); + $is_unsigned = ( ! empty($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE); // Convert datatypes to be PostgreSQL-compatible switch (strtoupper($attributes['TYPE'])) @@ -118,44 +93,24 @@ class CI_DB_postgre_forge extends CI_DB_forge { case 'BLOB': $attributes['TYPE'] = 'BYTEA'; break; + default: + break; } // If this is an auto-incrementing primary key, use the serial data type instead - if (in_array($field, $primary_keys) && array_key_exists('AUTO_INCREMENT', $attributes) - && $attributes['AUTO_INCREMENT'] === TRUE) - { - $sql .= ' SERIAL'; - } - else - { - $sql .= ' '.$attributes['TYPE']; - } + $sql .= (in_array($field, $primary_keys) && ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + ? ' SERIAL' : ' '.$attributes['TYPE']; // Modified to prevent constraints with integer data types - if (array_key_exists('CONSTRAINT', $attributes) && strpos($attributes['TYPE'], 'INT') === false) + if ( ! empty($attributes['CONSTRAINT']) && strpos($attributes['TYPE'], 'INT') === FALSE) { $sql .= '('.$attributes['CONSTRAINT'].')'; } - if (array_key_exists('DEFAULT', $attributes)) - { - $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\''; - } - - if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - - // Added new attribute to create unqite fields. Also works with MySQL - if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE) - { - $sql .= ' UNIQUE'; - } + $sql .= (isset($attributes['DEFAULT']) ? " DEFAULT '".$attributes['DEFAULT']."'" : '') + .(( ! empty($attributes['NULL']) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL') + // Added new attribute to create unqite fields. Also works with MySQL + .(( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) ? ' UNIQUE' : ''); } // don't add a comma on the end of the last field @@ -180,7 +135,7 @@ class CI_DB_postgre_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -193,8 +148,7 @@ class CI_DB_postgre_forge extends CI_DB_forge { } } - $sql .= $this->db->_escape_identifiers($table)." ("; - $sql .= $this->_process_fields($fields, $primary_keys); + $sql .= $this->db->escape_identifiers($table).' ('.$this->_process_fields($fields, $primary_keys); if (count($primary_keys) > 0) { @@ -204,7 +158,7 @@ class CI_DB_postgre_forge extends CI_DB_forge { $primary_keys[$index] = $this->db->protect_identifiers($key); } - $sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")"; + $sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')'; } $sql .= "\n);"; @@ -224,7 +178,7 @@ class CI_DB_postgre_forge extends CI_DB_forge { foreach ($key as $field) { - $sql .= "CREATE INDEX " . $table . "_" . str_replace(array('"', "'"), '', $field) . "_index ON $table ($field); "; + $sql .= 'CREATE INDEX '.$table.'_'.str_replace(array('"', "'"), '', $field).'_index ON '.$table.' ('.$field.'); '; } } } @@ -235,18 +189,6 @@ class CI_DB_postgre_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @return string - */ - public function _drop_table($table) - { - return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table)." CASCADE"; - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -257,45 +199,24 @@ class CI_DB_postgre_forge extends CI_DB_forge { * @param string the table name * @param string the column definition * @param string the default value - * @param boolean should 'NOT NULL' be added + * @param bool should 'NOT NULL' be added * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $fields, $after_field = '') + protected function _alter_table($alter_type, $table, $fields, $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '; // DROP has everything it needs now. - if ($alter_type == 'DROP') + if ($alter_type === 'DROP') { return $sql.$this->db->protect_identifiers($fields); } - $sql .= $this->_process_fields($fields); - - if ($after_field != '') - { - return $sql.' AFTER '.$this->db->protect_identifiers($after_field); - } - - return $sql; + return $sql.$this->_process_fields($fields) + .($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : ''); } - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } } /* End of file postgre_forge.php */ diff --git a/system/database/drivers/postgre/postgre_result.php b/system/database/drivers/postgre/postgre_result.php index 8b22564b3..f913bc9eb 100644 --- a/system/database/drivers/postgre/postgre_result.php +++ b/system/database/drivers/postgre/postgre_result.php @@ -70,7 +70,7 @@ class CI_DB_postgre_result extends CI_DB_result { public function list_fields() { $field_names = array(); - for ($i = 0; $i < $this->num_fields(); $i++) + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) { $field_names[] = pg_field_name($this->result_id, $i); } @@ -90,16 +90,14 @@ class CI_DB_postgre_result extends CI_DB_result { public function field_data() { $retval = array(); - for ($i = 0; $i < $this->num_fields(); $i++) + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) { - $F = new stdClass(); - $F->name = pg_field_name($this->result_id, $i); - $F->type = pg_field_type($this->result_id, $i); - $F->max_length = pg_field_size($this->result_id, $i); - $F->primary_key = 0; - $F->default = ''; - - $retval[] = $F; + $retval[$i] = new stdClass(); + $retval[$i]->name = pg_field_name($this->result_id, $i); + $retval[$i]->type = pg_field_type($this->result_id, $i); + $retval[$i]->max_length = pg_field_size($this->result_id, $i); + $retval[$i]->primary_key = 0; + $retval[$i]->default = ''; } return $retval; @@ -130,7 +128,7 @@ class CI_DB_postgre_result extends CI_DB_result { * this internally before fetching results to make sure the * result set starts at zero * - * @return array + * @return bool */ protected function _data_seek($n = 0) { diff --git a/system/database/drivers/postgre/postgre_utility.php b/system/database/drivers/postgre/postgre_utility.php index cf29201ff..c95e6df0c 100644 --- a/system/database/drivers/postgre/postgre_utility.php +++ b/system/database/drivers/postgre/postgre_utility.php @@ -34,43 +34,8 @@ */ class CI_DB_postgre_utility extends CI_DB_utility { - /** - * List databases - * - * @return string - */ - public function _list_databases() - { - return 'SELECT datname FROM pg_database'; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * @param string the table name - * @return string - */ - public function _optimize_table($table) - { - return 'REINDEX TABLE '.$this->db->protect_identifiers($table); - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * @param string the table name - * @return bool - */ - public function _repair_table($table) - { - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_list_databases = 'SELECT datname FROM pg_database'; + protected $_optimize_table = 'REINDEX TABLE %s'; /** * Postgre Export @@ -78,7 +43,7 @@ class CI_DB_postgre_utility extends CI_DB_utility { * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php index 102c79bb3..551704f83 100644 --- a/system/database/drivers/sqlite/sqlite_driver.php +++ b/system/database/drivers/sqlite/sqlite_driver.php @@ -29,7 +29,7 @@ * SQLite Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -106,18 +106,6 @@ class CI_DB_sqlite_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Select the database - * - * @return resource - */ - public function db_select() - { - return TRUE; - } - - // -------------------------------------------------------------------- - - /** * Database version number * * @return string @@ -378,47 +366,6 @@ class CI_DB_sqlite_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -440,103 +387,36 @@ class CI_DB_sqlite_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement + * Replace statement * - * Generates a platform-specific insert string from the supplied data + * Generates a platform-specific replace string from the supplied data * * @param string the table name * @param array the insert keys * @param array the insert values * @return string */ - protected function _insert($table, $keys, $values) + protected function _replace($table, $keys, $values) { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; + return 'INSERT OR '.parent::_replace($table, $keys, $values); } // -------------------------------------------------------------------- /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @return string - */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE) - { - foreach ($values as $key => $val) - { - $valstr[] = $key." = ".$val; - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):''; - - $sql = "UPDATE ".$table." SET ".implode(', ', $valstr); - - $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : ''; - - $sql .= $orderby.$limit; - - return $sql; - } - - - // -------------------------------------------------------------------- - - /** * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" - * - * @param string the table name - * @return string - */ - protected function _truncate($table) - { - return $this->_delete($table); - } - - // -------------------------------------------------------------------- - - /** - * Delete statement * - * Generates a platform-specific delete string from the supplied data + * If the database does not support the truncate() command, + * then this function maps to 'DELETE FROM table' * * @param string the table name - * @param array the where clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _truncate($table) { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - $conditions .= implode("\n", $like); - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - return "DELETE FROM ".$table.$conditions.$limit; + return 'DELETE FROM '.$table; } // -------------------------------------------------------------------- @@ -581,4 +461,4 @@ class CI_DB_sqlite_driver extends CI_DB { } /* End of file sqlite_driver.php */ -/* Location: ./system/database/drivers/sqlite/sqlite_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/sqlite/sqlite_driver.php */ diff --git a/system/database/drivers/sqlite/sqlite_forge.php b/system/database/drivers/sqlite/sqlite_forge.php index 068a556ed..dd6f0f78d 100644 --- a/system/database/drivers/sqlite/sqlite_forge.php +++ b/system/database/drivers/sqlite/sqlite_forge.php @@ -40,7 +40,7 @@ class CI_DB_sqlite_forge extends CI_DB_forge { * @param string the database name * @return bool */ - public function _create_database() + public function create_database($db_name = '') { // In SQLite, a database is created when you connect to the database. // We'll return TRUE so that an error isn't generated @@ -52,19 +52,16 @@ class CI_DB_sqlite_forge extends CI_DB_forge { /** * Drop database * - * @param string the database name + * @param string the database name (ignored) * @return bool */ - public function _drop_database($name) + public function drop_database($db_name = '') { if ( ! @file_exists($this->db->database) OR ! @unlink($this->db->database)) { - if ($this->db->db_debug) - { - return $this->db->display_error('db_unable_to_drop'); - } - return FALSE; + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; } + return TRUE; } @@ -80,7 +77,7 @@ class CI_DB_sqlite_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -90,10 +87,10 @@ class CI_DB_sqlite_forge extends CI_DB_forge { $sql .= 'IF NOT EXISTS '; } - $sql .= $this->db->_escape_identifiers($table)."("; + $sql .= $this->db->escape_identifiers($table).' ('; $current_field_count = 0; - foreach ($fields as $field=>$attributes) + foreach ($fields as $field => $attributes) { // Numeric field names aren't allowed in databases, so if the key is // numeric, we know it was assigned by PHP and the developer manually @@ -178,22 +175,6 @@ class CI_DB_sqlite_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @return bool - */ - public function _drop_table($table) - { - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return array(); - } - - // -------------------------------------------------------------------- - - /** * Alter table query * * Generates a platform-specific query so that a table can be altered @@ -208,7 +189,7 @@ class CI_DB_sqlite_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') + protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name); @@ -246,22 +227,6 @@ class CI_DB_sqlite_forge extends CI_DB_forge { } - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } - } /* End of file sqlite_forge.php */ diff --git a/system/database/drivers/sqlite/sqlite_result.php b/system/database/drivers/sqlite/sqlite_result.php index b002aeff1..741dc9d8d 100644 --- a/system/database/drivers/sqlite/sqlite_result.php +++ b/system/database/drivers/sqlite/sqlite_result.php @@ -70,9 +70,9 @@ class CI_DB_sqlite_result extends CI_DB_result { public function list_fields() { $field_names = array(); - for ($i = 0; $i < $this->num_fields(); $i++) + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) { - $field_names[] = sqlite_field_name($this->result_id, $i); + $field_names[$i] = sqlite_field_name($this->result_id, $i); } return $field_names; @@ -90,16 +90,14 @@ class CI_DB_sqlite_result extends CI_DB_result { public function field_data() { $retval = array(); - for ($i = 0; $i < $this->num_fields(); $i++) + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) { - $F = new stdClass(); - $F->name = sqlite_field_name($this->result_id, $i); - $F->type = 'varchar'; - $F->max_length = 0; - $F->primary_key = 0; - $F->default = ''; - - $retval[] = $F; + $retval[$i] = new stdClass(); + $retval[$i]->name = sqlite_field_name($this->result_id, $i); + $retval[$i]->type = 'varchar'; + $retval[$i]->max_length = 0; + $retval[$i]->primary_key = 0; + $retval[$i]->default = ''; } return $retval; @@ -108,25 +106,13 @@ class CI_DB_sqlite_result extends CI_DB_result { // -------------------------------------------------------------------- /** - * Free the result - * - * @return void - */ - public function free_result() - { - // Not implemented in SQLite - } - - // -------------------------------------------------------------------- - - /** * Data Seek * * Moves the internal pointer to the desired offset. We call * this internally before fetching results to make sure the * result set starts at zero * - * @return array + * @return bool */ protected function _data_seek($n = 0) { @@ -162,17 +148,9 @@ class CI_DB_sqlite_result extends CI_DB_result { { return sqlite_fetch_object($this->result_id); } - else - { - $arr = sqlite_fetch_array($this->result_id, SQLITE_ASSOC); - if (is_array($arr)) - { - $obj = (object) $arr; - return $obj; - } else { - return NULL; - } - } + + $arr = sqlite_fetch_array($this->result_id, SQLITE_ASSOC); + return is_array($arr) ? (object) $arr : FALSE; } } diff --git a/system/database/drivers/sqlite/sqlite_utility.php b/system/database/drivers/sqlite/sqlite_utility.php index c07004c54..1bcb42d9f 100644 --- a/system/database/drivers/sqlite/sqlite_utility.php +++ b/system/database/drivers/sqlite/sqlite_utility.php @@ -34,50 +34,7 @@ */ class CI_DB_sqlite_utility extends CI_DB_utility { - /** - * List databases - * - * I don't believe you can do a database listing with SQLite - * since each database is its own file. I suppose we could - * try reading a directory looking for SQLite files, but - * that doesn't seem like a terribly good idea - * - * @return bool - */ - public function _list_databases() - { - return ($this->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * @param string the table name - * @return bool - */ - public function _optimize_table($table) - { - // Not supported - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * @param string the table name - * @return bool - */ - public function _repair_table($table) - { - // Not supported - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_list_databases = FALSE; /** * SQLite Export @@ -85,7 +42,7 @@ class CI_DB_sqlite_utility extends CI_DB_utility { * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); diff --git a/system/database/drivers/sqlite3/index.html b/system/database/drivers/sqlite3/index.html new file mode 100644 index 000000000..c942a79ce --- /dev/null +++ b/system/database/drivers/sqlite3/index.html @@ -0,0 +1,10 @@ +<html> +<head> + <title>403 Forbidden</title> +</head> +<body> + +<p>Directory access is forbidden.</p> + +</body> +</html>
\ No newline at end of file diff --git a/system/database/drivers/sqlite3/sqlite3_driver.php b/system/database/drivers/sqlite3/sqlite3_driver.php new file mode 100644 index 000000000..d22f6a442 --- /dev/null +++ b/system/database/drivers/sqlite3/sqlite3_driver.php @@ -0,0 +1,431 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.2.4 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) + * @link http://codeigniter.com + * @since Version 1.0 + * @filesource + */ + +/** + * SQLite3 Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author Andrey Andreev + * @link http://codeigniter.com/user_guide/database/ + * @since Version 3.0 + */ +class CI_DB_sqlite3_driver extends CI_DB { + + public $dbdriver = 'sqlite3'; + + // The character used for escaping + protected $_escape_char = '"'; + + // clause and character used for LIKE escape sequences + protected $_like_escape_str = ' ESCAPE \'%s\' '; + protected $_like_escape_chr = '!'; + + /** + * The syntax to count rows is slightly different across different + * database engines, so this string appears in each driver and is + * used for the count_all() and count_all_results() functions. + */ + protected $_count_string = 'SELECT COUNT(*) AS '; + protected $_random_keyword = ' RANDOM()'; + + /** + * Non-persistent database connection + * + * @return object type SQLite3 + */ + public function db_connect() + { + try + { + return ( ! $this->password) + ? new SQLite3($this->database) + : new SQLite3($this->database, SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE, $this->password); + } + catch (Exception $e) + { + return FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Persistent database connection + * + * @return object type SQLite3 + */ + public function db_pconnect() + { + log_message('debug', 'SQLite3 doesn\'t support persistent connections'); + return $this->db_pconnect(); + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + $version = $this->conn_id->version(); + return $this->data_cache['version'] = $version['versionString']; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string an SQL query + * @return mixed SQLite3Result object or bool + */ + protected function _execute($sql) + { + // TODO: Implement use of SQLite3::querySingle(), if needed + + return $this->is_write_type($sql) + ? $this->conn_id->exec($sql) + : $this->conn_id->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + public function trans_begin($test_mode = FALSE) + { + // When transactions are nested we only begin/commit/rollback the outermost ones + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) + { + return TRUE; + } + + // Reset the transaction failure flag. + // If the $test_mode flag is set to TRUE transactions will be rolled back + // even if the queries produce a successful result. + $this->_trans_failure = ($test_mode === TRUE); + + return $this->conn_id->exec('BEGIN TRANSACTION'); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + public function trans_commit() + { + // When transactions are nested we only begin/commit/rollback the outermost ones + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) + { + return TRUE; + } + + return $this->conn_id->exec('END TRANSACTION'); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + public function trans_rollback() + { + // When transactions are nested we only begin/commit/rollback the outermost ones + if ( ! $this->trans_enabled OR $this->_trans_depth > 0) + { + return TRUE; + } + + return $this->conn_id->exec('ROLLBACK'); + } + + // -------------------------------------------------------------------- + + /** + * Escape String + * + * @param string + * @param bool whether or not the string will be used in a LIKE condition + * @return string + */ + public function escape_str($str, $like = FALSE) + { + if (is_array($str)) + { + foreach ($str as $key => $val) + { + $str[$key] = $this->escape_str($val, $like); + } + + return $str; + } + + $str = $this->conn_id->escapeString(remove_invisible_characters($str)); + + // escape LIKE condition wildcards + if ($like === TRUE) + { + return str_replace(array($this->_like_escape_chr, '%', '_'), + array($this->_like_escape_chr.$this->_like_escape_chr, $this->_like_escape_chr.'%', $this->_like_escape_chr.'_'), + $str); + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return $this->conn_id->changes(); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return int + */ + public function insert_id() + { + return $this->conn_id->lastInsertRowID(); + } + + // -------------------------------------------------------------------- + + /** + * "Count All" query + * + * Generates a platform-specific query string that counts all records in + * the specified database + * + * @param string + * @return int + */ + public function count_all($table = '') + { + if ($table == '') + { + return 0; + } + + $result = $this->conn_id->querySingle($this->_count_string.$this->protect_identifiers('numrows') + .' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE)); + + return empty($result) ? 0 : (int) $result; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + return 'SELECT "NAME" FROM "SQLITE_MASTER" WHERE "TYPE" = \'table\'' + .(($prefix_limit !== FALSE && $this->dbprefix != '') + ? ' AND "NAME" LIKE \''.$this->escape_like_str($this->dbprefix).'%\' '.sprintf($this->_like_escape_str, $this->_like_escape_chr) + : ''); + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string the table name + * @return string + */ + protected function _list_columns($table = '') + { + // Not supported + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Field data query + * + * Generates a platform-specific query so that the column data can be retrieved + * + * @param string the table name + * @return string + */ + protected function _field_data($table) + { + return 'SELECT * FROM '.$table.' LIMIT 0,1'; + } + + // -------------------------------------------------------------------- + + /** + * The error message string + * + * @return string + */ + protected function _error_message() + { + return $this->conn_id->lastErrorMsg(); + } + + // -------------------------------------------------------------------- + + /** + * The error message number + * + * @return int + */ + protected function _error_number() + { + return $this->conn_id->lastErrorCode(); + } + + // -------------------------------------------------------------------- + + /** + * From Tables + * + * This function implicitly groups FROM tables so there is no confusion + * about operator precedence in harmony with SQL standards + * + * @param string + * @return string + */ + protected function _from_tables($tables) + { + if ( ! is_array($tables)) + { + $tables = array($tables); + } + + return '('.implode(', ', $tables).')'; + } + + // -------------------------------------------------------------------- + + /** + * Replace statement + * + * Generates a platform-specific replace string from the supplied data + * + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + protected function _replace($table, $keys, $values) + { + return 'INSERT OR '.parent::_replace($table, $keys, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the truncate() command, then, + * then this method maps to 'DELETE FROM table' + * + * @param string the table name + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Limit string + * + * Generates a platform-specific LIMIT clause + * + * @param string the sql query string + * @param int the number of rows to limit the query to + * @param int the offset value + * @return string + */ + protected function _limit($sql, $limit, $offset) + { + return $sql.' LIMIT '.($offset ? $offset.',' : '').$limit; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @param object (ignored) + * @return void + */ + protected function _close($conn_id) + { + $this->conn_id->close(); + } + +} + +/* End of file sqlite3_driver.php */ +/* Location: ./system/database/drivers/sqlite3/sqlite3_driver.php */
\ No newline at end of file diff --git a/system/database/drivers/sqlite3/sqlite3_forge.php b/system/database/drivers/sqlite3/sqlite3_forge.php new file mode 100644 index 000000000..20f1e6f63 --- /dev/null +++ b/system/database/drivers/sqlite3/sqlite3_forge.php @@ -0,0 +1,195 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.1.6 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) + * @link http://codeigniter.com + * @since Version 1.0 + * @filesource + */ + +/** + * SQLite3 Forge Class + * + * @category Database + * @author Andrey Andreev + * @link http://codeigniter.com/user_guide/database/ + */ +class CI_DB_sqlite3_forge extends CI_DB_forge { + + /** + * Create database + * + * @param string the database name + * @return bool + */ + public function create_database($db_name = '') + { + // In SQLite, a database is created when you connect to the database. + // We'll return TRUE so that an error isn't generated + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string the database name (ignored) + * @return bool + */ + public function drop_database($db_name = '') + { + // In SQLite, a database is dropped when we delete a file + if (@file_exists($this->db->database)) + { + // We need to close the pseudo-connection first + $this->db->close(); + if ( ! @unlink($this->db->database)) + { + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + return TRUE; + } + + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Create Table + * + * @param string the table name + * @param array the fields + * @param mixed primary key(s) + * @param mixed key(s) + * @param bool should 'IF NOT EXISTS' be added to the SQL + * @return bool + */ + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + { + $sql = 'CREATE TABLE '; + + // IF NOT EXISTS added to SQLite in 3.3.0 + if ($if_not_exists === TRUE && version_compare($this->db->version(), '3.3.0', '>=') === TRUE) + { + $sql .= 'IF NOT EXISTS '; + } + + $sql .= $this->db->escape_identifiers($table).' ('; + $current_field_count = 0; + + foreach ($fields as $field => $attributes) + { + // Numeric field names aren't allowed in databases, so if the key is + // numeric, we know it was assigned by PHP and the developer manually + // entered the field information, so we'll simply add it to the list + if (is_numeric($field)) + { + $sql .= "\n\t".$attributes; + } + else + { + $attributes = array_change_key_case($attributes, CASE_UPPER); + + $sql .= "\n\t".$this->db->protect_identifiers($field) + .' '.$attributes['TYPE'] + .( ! empty($attributes['CONSTRAINT']) ? '('.$attributes['CONSTRAINT'].')' : '') + .(( ! empty($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE) ? ' UNSIGNED' : '') + .(isset($attributes['DEFAULT']) ? ' DEFAULT \''.$attributes['DEFAULT'].'\'' : '') + .(( ! empty($attributes['NULL']) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL') + .(( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) ? ' AUTO_INCREMENT' : ''); + } + + // don't add a comma on the end of the last field + if (++$current_field_count < count($fields)) + { + $sql .= ','; + } + } + + if (count($primary_keys) > 0) + { + $primary_keys = $this->db->protect_identifiers($primary_keys); + $sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')'; + } + + if (is_array($keys) && count($keys) > 0) + { + foreach ($keys as $key) + { + if (is_array($key)) + { + $key = $this->db->protect_identifiers($key); + } + else + { + $key = array($this->db->protect_identifiers($key)); + } + + $sql .= ",\n\tUNIQUE (".implode(', ', $key).')'; + } + } + + return $sql."\n)"; + } + + // -------------------------------------------------------------------- + + /** + * Alter table query + * + * Generates a platform-specific query so that a table can be altered + * Called by add_column(), drop_column(), and column_alter(), + * + * @param string the ALTER type (ADD, DROP, CHANGE) + * @param string the column name + * @param string the table name + * @param string the column definition + * @param string the default value + * @param bool should 'NOT NULL' be added + * @param string the field after which we should add the new field + * @return string + */ + protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') + { + /* SQLite only supports adding new columns and it does + * NOT support the AFTER statement. Each new column will + * be added as the last one in the table. + */ + if ($alter_type !== 'ADD COLUMN') + { + // Not supported + return FALSE; + } + + return 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name) + .' '.$column_definition + .($default_value != '' ? ' DEFAULT '.$default_value : '') + // If NOT NULL is specified, the field must have a DEFAULT value other than NULL + .(($null !== NULL && $default_value !== 'NULL') ? ' NOT NULL' : ' NULL'); + } + +} + +/* End of file sqlite3_forge.php */ +/* Location: ./system/database/drivers/sqlite3/sqlite3_forge.php */
\ No newline at end of file diff --git a/system/database/drivers/sqlite3/sqlite3_result.php b/system/database/drivers/sqlite3/sqlite3_result.php new file mode 100644 index 000000000..d83d6b2cd --- /dev/null +++ b/system/database/drivers/sqlite3/sqlite3_result.php @@ -0,0 +1,615 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.1.6 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) + * @link http://codeigniter.com + * @since Version 1.0 + * @filesource + */ + +/** + * SQLite Result Class + * + * This class extends the parent result class: CI_DB_result + * + * @category Database + * @author Andrey Andreev + * @link http://codeigniter.com/user_guide/database/ + */ +class CI_DB_sqlite3_result extends CI_DB_result { + + // Overwriting the parent here, so we have a way to know if it's already set + public $num_rows; + + // num_fields() might be called multiple times, so we'll use this one to cache it's result + protected $_num_fields; + + /** + * Number of rows in the result set + * + * @return int + */ + public function num_rows() + { + /* The SQLite3 driver doesn't have a graceful way to do this, + * so we'll have to do it on our own. + */ + return is_int($this->num_rows) + ? $this->num_rows + : $this->num_rows = count($this->result_array()); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return ( ! is_int($this->_num_fields)) + ? $this->_num_fields = $this->result_id->numColumns() + : $this->_num_fields; + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $field_names[] = $this->result_id->columnName($i); + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($i = 0, $c = $this->num_fields(); $i < $this->num_fields(); $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $this->result_id->columnName($i); + $retval[$i]->type = 'varchar'; + $retval[$i]->max_length = 0; + $retval[$i]->primary_key = 0; + $retval[$i]->default = ''; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_object($this->result_id)) + { + $this->result_id->finalize(); + $this->result_id = NULL; + } + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return $this->result_id->fetchArray(SQLITE3_ASSOC); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @return object + */ + protected function _fetch_object() + { + // No native support for fetching as an object + $row = $this->_fetch_assoc(); + return ($row !== FALSE) ? (object) $row : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Query result. "array" version. + * + * return array + */ + public function result_array() + { + if (count($this->result_array) > 0) + { + return $this->result_array; + } + elseif (is_array($this->row_data)) + { + if (count($this->row_data) === 0) + { + return $this->result_array; + } + else + { + $row_index = count($this->row_data); + } + } + else + { + $row_index = 0; + $this->row_data = array(); + } + + $row = NULL; + while ($row = $this->_fetch_assoc()) + { + $this->row_data[$row_index++] = $row; + } + + return $this->result_array = $this->row_data; + } + + // -------------------------------------------------------------------- + + /** + * Query result. "object" version. + * + * @return array + */ + public function result_object() + { + if (count($this->result_object) > 0) + { + return $this->result_object; + } + elseif (count($this->result_array) > 0) + { + for ($i = 0, $c = count($this->result_array); $i < $c; $i++) + { + $this->result_object[] = (object) $this->result_array[$i]; + } + + return $this->result_object; + } + elseif (is_array($this->row_data)) + { + if (count($this->row_data) === 0) + { + return $this->result_object; + } + else + { + $row_index = count($this->row_data); + for ($i = 0; $i < $row_index; $i++) + { + $this->result_object[$i] = (object) $this->row_data[$i]; + } + } + } + else + { + $row_index = 0; + $this->row_data = array(); + } + + $row = NULL; + while ($row = $this->_fetch_assoc()) + { + $this->row_data[$row_index] = $row; + $this->result_object[$row_index++] = (object) $row; + } + + $this->result_array = $this->row_data; + + /* As described for the num_rows() method - there's no easy + * way to get the number of rows selected. Our work-around + * solution (as in here as well) first checks if result_array + * exists and returns its count. It doesn't however check for + * custom_object_result, so - do it here. + */ + if ( ! is_int($this->num_rows)) + { + $this->num_rows = count($this->result_object); + } + + return $this->result_object; + } + + // -------------------------------------------------------------------- + + /** + * Query result. Custom object version. + * + * @param string class name used to instantiate rows to + * @return array + */ + public function custom_result_object($class_name) + { + if (array_key_exists($class_name, $this->custom_result_object)) + { + return $this->custom_result_object[$class_name]; + } + + if ( ! class_exists($class_name) OR ! is_object($this->result_id) OR $this->num_rows() === 0) + { + return array(); + } + + /* Even if result_array hasn't been set prior to custom_result_object being called, + * num_rows() has done it. + */ + $data = &$this->result_array; + + $result_object = array(); + for ($i = 0, $c = count($data); $i < $c; $i++) + { + $result_object[$i] = new $class_name(); + foreach ($data[$i] as $key => $value) + { + $result_object[$i]->$key = $value; + } + } + + /* As described for the num_rows() method - there's no easy + * way to get the number of rows selected. Our work-around + * solution (as in here as well) first checks if result_array + * exists and returns its count. It doesn't however check for + * custom_object_result, so - do it here. + */ + if ( ! is_int($this->num_rows)) + { + $this->num_rows = count($result_object); + } + + // Cache and return the array + return $this->custom_result_object[$class_name] = $result_object; + } + + // -------------------------------------------------------------------- + + /* Single row result. + * + * Acts as a wrapper for row_object(), row_array() + * and custom_row_object(). Also used by first_row(), next_row() + * and previous_row(). + * + * @param int row index + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function row($n = 0, $type = 'object') + { + if ($type === 'object') + { + return $this->row_object($n); + } + elseif ($type === 'array') + { + return $this->row_array($n); + } + + return $this->custom_row_object($n, $type); + } + + // -------------------------------------------------------------------- + + /* Single row result. Array version. + * + * @param int row index + * @return array + */ + public function row_array($n = 0) + { + // Make sure $n is not a string + if ( ! is_int($n)) + { + $n = (int) $n; + } + + /* If row_data is initialized, it means that we've already tried + * (at least) to fetch some data, so ... check if we already have + * this row. + */ + if (is_array($this->row_data)) + { + /* If we already have row_data[$n] - return it. + * + * If we enter the elseif, there's a number of reasons to + * return an empty array: + * + * - count($this->row_data) === 0 means there are no results + * - num_rows being set or result_array having count() > 0 means + * that we've already fetched all data and $n is greater than + * our highest row index available + * - $n < $this->current_row means that if such row existed, + * we would've already returned it, therefore $n is an + * invalid index + */ + if (isset($this->row_data[$n])) // We already have this row + { + $this->current_row = $n; + return $this->row_data[$n]; + } + elseif (count($this->row_data) === 0 OR is_int($this->num_rows) + OR count($this->result_array) > 0 OR $n < $this->current_row) + { + // No such row exists + return array(); + } + + // Get the next row index that would actually need to be fetched + $current_row = ($this->current_row < count($this->row_data)) ? count($this->row_data) : $this->current_row + 1; + } + else + { + $current_row = $this->current_row = 0; + $this->row_data = array(); + } + + /* Fetch more data, if available + * + * NOTE: Operator precedence is important here, if you change + * 'AND' with '&&' - it WILL BREAK the results, as + * $row will be assigned the scalar value of both + * expressions! + */ + while ($row = $this->_fetch_assoc() AND $current_row <= $n) + { + $this->row_data[$current_row++] = $row; + } + + // This would mean that there's no (more) data to fetch + if ( ! is_array($this->row_data) OR ! isset($this->row_data[$n])) + { + // Cache what we already have + if (is_array($this->row_data)) + { + $this->num_rows = count($this->row_data); + /* Usually, row_data could have less elements than result_array, + * but at this point - they should be exactly the same. + */ + $this->result_array = $this->row_data; + } + else + { + $this->num_rows = 0; + } + + return array(); + } + + $this->current_row = $n; + return $this->row_data[$n]; + } + + // -------------------------------------------------------------------- + + /* Single row result. Object version. + * + * @param int row index + * @return mixed object if row found; empty array if not + */ + public function row_object($n = 0) + { + // Make sure $n is not a string + if ( ! is_int($n)) + { + $n = (int) $n; + } + + /* Logic here is exactly the same as in row_array, + * except we have to cast row_data[$n] to an object. + * + * If we already have result_object though - we can + * directly return from it. + */ + if (isset($this->result_object[$n])) + { + $this->current_row = $n; + return $this->result_object[$n]; + } + + $row = $this->row_array($n); + // Cast only if the row exists + if (count($row) > 0) + { + $this->current_row = $n; + return (object) $row; + } + + return array(); + } + + // -------------------------------------------------------------------- + + /* Single row result. Custom object version. + * + * @param int row index + * @param string custom class name + * @return mixed custom object if row found; empty array otherwise + */ + public function custom_row_object($n = 0, $class_name) + { + // Make sure $n is not a string + if ( ! is_int($n)) + { + $n = (int) $n; + } + + if (array_key_exists($class_name, $this->custom_result_object)) + { + /* We already have a the whole result set with this class_name, + * return the specified row if it exists, and an empty array if + * it doesn't. + */ + if (isset($this->custom_result_object[$class_name][$n])) + { + $this->current_row = $n; + return $this->custom_result_object[$class_name][$n]; + } + else + { + return array(); + } + } + elseif ( ! class_exists($class_name)) // No such class exists + { + return array(); + } + + $row = $this->row_array($n); + // An array would mean that the row doesn't exist + if (is_array($row)) + { + return $row; + } + + // Convert to the desired class and return + $row_object = new $class_name(); + foreach ($row as $key => $value) + { + $row_object->$key = $value; + } + + $this->current_row = $n; + return $row_object; + } + + // -------------------------------------------------------------------- + + /* First row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function first_row($type = 'object') + { + return $this->row(0, $type); + } + + // -------------------------------------------------------------------- + + /* Last row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function last_row($type = 'object') + { + $result = &$this->result($type); + if ( ! isset($this->num_rows)) + { + $this->num_rows = count($result); + } + $this->current_row = $this->num_rows - 1; + return $result[$this->current_row]; + } + + // -------------------------------------------------------------------- + + /* Next row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function next_row($type = 'object') + { + if (is_array($this->row_data)) + { + $count = count($this->row_data); + $n = ($this->current_row > $count OR ($this->current_row === 0 && $count === 0)) ? $count : $this->current_row + 1; + } + else + { + $n = 0; + } + + return $this->row($n, $type); + } + + // -------------------------------------------------------------------- + + /* Previous row result. + * + * @param string ('object', 'array' or a custom class name) + * @return mixed whatever was passed to the second parameter + */ + public function previous_row($type = 'object') + { + $n = ($this->current_row !== 0) ? $this->current_row - 1 : 0; + return $this->row($n, $type); + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero + * + * @return array + */ + protected function _data_seek($n = 0) + { + // Only resetting to the start of the result set is supported + return $this->result_id->reset(); + } + +} + +/* End of file sqlite3_result.php */ +/* Location: ./system/database/drivers/sqlite3/sqlite3_result.php */
\ No newline at end of file diff --git a/system/database/drivers/sqlite3/sqlite3_utility.php b/system/database/drivers/sqlite3/sqlite3_utility.php new file mode 100644 index 000000000..965c838e5 --- /dev/null +++ b/system/database/drivers/sqlite3/sqlite3_utility.php @@ -0,0 +1,54 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.1.6 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) + * @link http://codeigniter.com + * @since Version 1.0 + * @filesource + */ + +/** + * SQLite3 Utility Class + * + * @category Database + * @author Andrey Andreev + * @link http://codeigniter.com/user_guide/database/ + */ +class CI_DB_sqlite3_utility extends CI_DB_utility { + + protected $_list_databases = FALSE; + + /** + * SQLite Export + * + * @param array Preferences + * @return mixed + */ + protected function _backup($params = array()) + { + // Not supported + return $this->db->display_error('db_unsuported_feature'); + } + +} + +/* End of file sqlite3_utility.php */ +/* Location: ./system/database/drivers/sqlite3/sqlite3_utility.php */
\ No newline at end of file diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php index 9f2f88699..8cc500f55 100644 --- a/system/database/drivers/sqlsrv/sqlsrv_driver.php +++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php @@ -29,7 +29,7 @@ * SQLSRV Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter @@ -55,7 +55,7 @@ class CI_DB_sqlsrv_driver extends CI_DB { * used for the count_all() and count_all_results() functions. */ protected $_count_string = 'SELECT COUNT(*) AS '; - protected $_random_keyword = ' ASC'; // not currently supported + protected $_random_keyword = ' NEWID()'; // not currently supported /** * Non-persistent database connection @@ -68,12 +68,12 @@ class CI_DB_sqlsrv_driver extends CI_DB { $character_set = (0 === strcasecmp('utf8', $this->char_set)) ? 'UTF-8' : $this->char_set; $connection = array( - 'UID' => empty($this->username) ? '' : $this->username, - 'PWD' => empty($this->password) ? '' : $this->password, - 'Database' => $this->database, - 'ConnectionPooling' => $pooling ? 1 : 0, + 'UID' => empty($this->username) ? '' : $this->username, + 'PWD' => empty($this->password) ? '' : $this->password, + 'Database' => $this->database, + 'ConnectionPooling' => $pooling ? 1 : 0, 'CharacterSet' => $character_set, - 'ReturnDatesAsStrings' => 1 + 'ReturnDatesAsStrings' => 1 ); // If the username and password are both empty, assume this is a @@ -259,23 +259,6 @@ class CI_DB_sqlsrv_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Parse major version - * - * Grabs the major version number from the - * database server version string passed in. - * - * @param string $version - * @return int major version number - */ - protected function _parse_major_version($version) - { - preg_match('/([0-9]+)\.([0-9]+)\.([0-9]+)/', $version, $ver_info); - return $ver_info[1]; // return the major version b/c that's all we're interested in. - } - - // -------------------------------------------------------------------- - - /** * Database version number * * @return string @@ -410,21 +393,6 @@ class CI_DB_sqlsrv_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names - * - * @param string - * @return string - */ - public function _escape_identifiers($item) - { - return $item; - } - - // -------------------------------------------------------------------- - - /** * From Tables * * This function implicitly groups FROM tables so there is no confusion @@ -446,23 +414,6 @@ class CI_DB_sqlsrv_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - protected function _insert($table, $keys, $values) - { - return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; - } - - // -------------------------------------------------------------------- - - /** * Update statement * * Generates a platform-specific update string from the supplied data @@ -470,18 +421,26 @@ class CI_DB_sqlsrv_driver extends CI_DB { * @param string the table name * @param array the update data * @param array the where clause - * @param array the orderby clause - * @param array the limit clause + * @param array the orderby clause (ignored) + * @param array the limit clause (ignored) + * @param array the like clause * @return string */ - protected function _update($table, $values, $where) + protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) { foreach($values as $key => $val) { - $valstr[] = $key." = ".$val; + $valstr[] = $key.' = '.$val; + } + + $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); + + if ( ! empty($like)) + { + $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); } - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).' WHERE '.implode(' ', $where); + return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; } // -------------------------------------------------------------------- @@ -490,15 +449,16 @@ class CI_DB_sqlsrv_driver extends CI_DB { * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" + * + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' * * @param string the table name * @return string */ protected function _truncate($table) { - return "TRUNCATE ".$table; + return 'TRUNCATE TABLE '.$table; } // -------------------------------------------------------------------- @@ -510,12 +470,22 @@ class CI_DB_sqlsrv_driver extends CI_DB { * * @param string the table name * @param array the where clause + * @param array the like clause * @param string the limit clause * @return string */ - protected function _delete($table, $where) + protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) { - return 'DELETE FROM '.$table.' WHERE '.implode(' ', $where); + $conditions = array(); + + empty($where) OR $conditions[] = implode(' ', $where); + empty($like) OR $conditions[] = implode(' ', $like); + + $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; + + return ($limit) + ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' + : 'DELETE FROM '.$table.$conditions; } // -------------------------------------------------------------------- @@ -551,4 +521,4 @@ class CI_DB_sqlsrv_driver extends CI_DB { } /* End of file sqlsrv_driver.php */ -/* Location: ./system/database/drivers/sqlsrv/sqlsrv_driver.php */
\ No newline at end of file +/* Location: ./system/database/drivers/sqlsrv/sqlsrv_driver.php */ diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php index 0dc7b5242..e9143b269 100644 --- a/system/database/drivers/sqlsrv/sqlsrv_forge.php +++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php @@ -34,43 +34,7 @@ */ class CI_DB_sqlsrv_forge extends CI_DB_forge { - /** - * Create database - * - * @param string the database name - * @return string - */ - public function _create_database($name) - { - return "CREATE DATABASE ".$name; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @param string the database name - * @return bool - */ - public function _drop_database($name) - { - return "DROP DATABASE ".$name; - } - - // -------------------------------------------------------------------- - - /** - * Drop Table - * - * @return bool - */ - public function _drop_table($table) - { - return "DROP TABLE ".$this->db->_escape_identifiers($table); - } - - // -------------------------------------------------------------------- + protected $_drop_table = 'DROP TABLE %s'; /** * Create Table @@ -82,7 +46,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge { * @param bool should 'IF NOT EXISTS' be added to the SQL * @return bool */ - public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) { $sql = 'CREATE TABLE '; @@ -91,7 +55,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge { $sql .= 'IF NOT EXISTS '; } - $sql .= $this->db->_escape_identifiers($table)." ("; + $sql .= $this->db->escape_identifiers($table).' ('; $current_field_count = 0; foreach ($fields as $field => $attributes) @@ -193,7 +157,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge { * @param string the field after which we should add the new field * @return string */ - public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') + protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') { $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name); @@ -228,23 +192,6 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge { } - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @param string the old table name - * @param string the new table name - * @return string - */ - public function _rename_table($table_name, $new_table_name) - { - // I think this syntax will work, but can find little documentation on renaming tables in MSSQL - return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name); - } - } /* End of file sqlsrv_forge.php */ diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php index 10d790e4b..0802677fc 100644 --- a/system/database/drivers/sqlsrv/sqlsrv_result.php +++ b/system/database/drivers/sqlsrv/sqlsrv_result.php @@ -124,22 +124,6 @@ class CI_DB_sqlsrv_result extends CI_DB_result { // -------------------------------------------------------------------- /** - * Data Seek - * - * Moves the internal pointer to the desired offset. We call - * this internally before fetching results to make sure the - * result set starts at zero - * - * @return void - */ - protected function _data_seek($n = 0) - { - // Not implemented - } - - // -------------------------------------------------------------------- - - /** * Result - associative array * * Returns the result set as an array diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php index 5830c62de..394964b6a 100644 --- a/system/database/drivers/sqlsrv/sqlsrv_utility.php +++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php @@ -34,55 +34,16 @@ */ class CI_DB_sqlsrv_utility extends CI_DB_utility { - /** - * List databases - * - * @return string - */ - public function _list_databases() - { - return "EXEC sp_helpdb"; // Can also be: EXEC sp_databases - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized - * - * @param string the table name - * @return bool - */ - public function _optimize_table($table) - { - return FALSE; // Is this supported in MS SQL? - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @param string the table name - * @return bool - */ - public function _repair_table($table) - { - return FALSE; // Is this supported in MS SQL? - } - - // -------------------------------------------------------------------- + protected $_list_databases = 'EXEC sp_helpdb'; // Can also be: EXEC sp_databases + protected $_optimize_table = 'ALTER INDEX all ON %s REORGANIZE'; /** - * MSSQL Export + * SQLSRV Export * * @param array Preferences * @return mixed */ - public function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); |