From 2e08794d5de57d727abb2abe752a4479b3ec0242 Mon Sep 17 00:00:00 2001 From: Esen Sagynov Date: Tue, 9 Aug 2011 23:35:01 -0700 Subject: Added CUBRID Database Driver --- system/database/drivers/cubrid/cubrid_driver.php | 775 +++++++++++++++++++++++ 1 file changed, 775 insertions(+) create mode 100644 system/database/drivers/cubrid/cubrid_driver.php (limited to 'system/database/drivers/cubrid/cubrid_driver.php') diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php new file mode 100644 index 000000000..ef0b5b451 --- /dev/null +++ b/system/database/drivers/cubrid/cubrid_driver.php @@ -0,0 +1,775 @@ +port == '') + { + $this->port = self::DEFAULT_PORT; + } + + $conn = cubrid_connect($this->hostname, $this->port, $this->database, $this->username, $this->password); + + if ($conn){ + if (isset($this->auto_commit) && !$this->auto_commit){ + cubrid_set_autocommit($conn, CUBRID_AUTOCOMMIT_FALSE); + } + else{ + cubrid_set_autocommit($conn, CUBRID_AUTOCOMMIT_TRUE); + $this->auto_commit = TRUE; + } + } + + return $conn; + } + + // -------------------------------------------------------------------- + + /** + * Persistent database connection + * In CUBRID persistent DB connection is supported natively in CUBRID + * engine which can be configured in the CUBRID Broker configuration + * file by setting the CCI_PCONNECT parameter to ON. In that case, all + * connections established between the client application and the + * server will become persistent. This is calling the same + * @cubrid_connect function will establish persisten connection + * considering that the CCI_PCONNECT is ON. + * + * @access private called by the base class + * @return resource + */ + function db_pconnect() + { + return $this->db_connect(); + } + + // -------------------------------------------------------------------- + + /** + * Reconnect + * + * Keep / reestablish the db connection if no queries have been + * sent for a length of time exceeding the server's idle timeout + * + * @access public + * @return void + */ + function reconnect() + { + if (cubrid_ping($this->conn_id) === FALSE) + { + $this->conn_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Select the database + * + * @access private called by the base class + * @return resource + */ + function db_select() + { + // In CUBRID there is no need to select a database as the database + // is chosen at the connection time. + // So, to determine if the database is "selected", all we have to + // do is return the connection identifier which can be later + // checked if it has been established or not. + return cubrid_ping($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Set client character set + * + * @access public + * @param string + * @param string + * @return resource + */ + function db_set_charset($charset, $collation) + { + // In CUBRID, there is no need to set charset or collation. + // This is why returning true will allow the application continue + // its normal process. + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Version number query string + * + * @access public + * @return string + */ + function _version() + { + return cubrid_get_server_info($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @access private called by the base class + * @param string an SQL query + * @return resource + */ + function _execute($sql) + { + $sql = $this->_prep_query($sql); + return @cubrid_query($sql, $this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Prep the query + * + * If needed, each database adapter can prep the query string + * + * @access private called by execute() + * @param string an SQL query + * @return string + */ + function _prep_query($sql) + { + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @access public + * @return bool + */ + function trans_begin($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) + { + 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) ? TRUE : FALSE; + + if (cubrid_get_autocommit($this->conn_id)) + cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_FALSE); + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @access public + * @return bool + */ + 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) + { + return TRUE; + } + + cubrid_commit($this->conn_id); + + if ($this->auto_commit && !cubrid_get_autocommit($this->conn_id)) + cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @access public + * @return bool + */ + 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) + { + return TRUE; + } + + cubrid_rollback($this->conn_id); + + if ($this->auto_commit && !cubrid_get_autocommit($this->conn_id)) + cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Escape String + * + * @access public + * @param string + * @param bool whether or not the string will be used in a LIKE condition + * @return string + */ + function escape_str($str, $like = FALSE) + { + if (is_array($str)) + { + foreach ($str as $key => $val) + { + $str[$key] = $this->escape_str($val, $like); + } + + return $str; + } + + if (function_exists('cubrid_real_escape_string') AND is_resource($this->conn_id)) + { + $str = cubrid_real_escape_string($str, $this->conn_id); + } + else + { + $str = addslashes($str); + } + + // escape LIKE condition wildcards + if ($like === TRUE) + { + //TODO: check this + $str = str_replace(array('%', '_'), array('\\%', '\\_'), $str); + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @access public + * @return integer + */ + function affected_rows() + { + return @cubrid_affected_rows($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @access public + * @return integer + */ + function insert_id() + { + return @cubrid_insert_id($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * "Count All" query + * + * Generates a platform-specific query string that counts all records in + * the specified table + * + * @access public + * @param string + * @return string + */ + function count_all($table = '') + { + if ($table == '') + { + return 0; + } + + $query = $this->query($this->_count_string . $this->_protect_identifiers('numrows') . " FROM " . $this->_protect_identifiers($table, TRUE, NULL, FALSE)); + + if ($query->num_rows() == 0) + { + return 0; + } + + $row = $query->row(); + return (int) $row->numrows; + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @access private + * @param boolean + * @return string + */ + function _list_tables($prefix_limit = FALSE) + { + $sql = "SHOW TABLES"; + + if ($prefix_limit !== FALSE AND $this->dbprefix != '') + { + $sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @access public + * @param string the table name + * @return string + */ + function _list_columns($table = '') + { + return "SHOW COLUMNS FROM ".$this->_protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Field data query + * + * Generates a platform-specific query so that the column data can be retrieved + * + * @access public + * @param string the table name + * @return object + */ + function _field_data($table) + { + return "SELECT * FROM ".$table." LIMIT 1"; + } + + // -------------------------------------------------------------------- + + /** + * The error message string + * + * @access private + * @return string + */ + function _error_message() + { + return cubrid_error($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * The error message number + * + * @access private + * @return integer + */ + function _error_number() + { + return cubrid_errno($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Escape the SQL Identifiers + * + * This function escapes column and table names + * + * @access private + * @param string + * @return string + */ + 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, $str); + } + + // -------------------------------------------------------------------- + + /** + * From Tables + * + * This function implicitly groups FROM tables so there is no confusion + * about operator precedence in harmony with SQL standards + * + * @access public + * @param type + * @return type + */ + function _from_tables($tables) + { + if ( ! is_array($tables)) + { + $tables = array($tables); + } + + return '('.implode(', ', $tables).')'; + } + + // -------------------------------------------------------------------- + + /** + * Insert statement + * + * Generates a platform-specific insert string from the supplied data + * + * @access public + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + function _insert($table, $keys, $values) + { + return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; + } + + // -------------------------------------------------------------------- + + + /** + * Replace statement + * + * Generates a platform-specific replace string from the supplied data + * + * @access public + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + function _replace($table, $keys, $values) + { + return "REPLACE INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; + } + + // -------------------------------------------------------------------- + + /** + * Insert_batch statement + * + * Generates a platform-specific insert string from the supplied data + * + * @access public + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + function _insert_batch($table, $keys, $values) + { + return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES ".implode(', ', $values); + } + + // -------------------------------------------------------------------- + + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @access public + * @param string the table name + * @param array the update data + * @param array the where clause + * @param array the orderby clause + * @param array the limit clause + * @return string + */ + function _update($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 $sql; + } + + // -------------------------------------------------------------------- + + + /** + * Update_Batch statement + * + * Generates a platform-specific batch update string from the supplied data + * + * @access public + * @param string the table name + * @param array the update data + * @param array the where clause + * @return string + */ + function _update_batch($table, $values, $index, $where = NULL) + { + $ids = array(); + $where = ($where != '' AND count($where) >=1) ? implode(" ", $where).' AND ' : ''; + + foreach ($values as $key => $val) + { + $ids[] = $val[$index]; + + foreach (array_keys($val) as $field) + { + if ($field != $index) + { + $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field]; + } + } + } + + $sql = "UPDATE ".$table." SET "; + $cases = ''; + + foreach ($final as $k => $v) + { + $cases .= $k.' = CASE '."\n"; + foreach ($v as $row) + { + $cases .= $row."\n"; + } + + $cases .= 'ELSE '.$k.' END, '; + } + + $sql .= substr($cases, 0, -2); + + $sql .= ' WHERE '.$where.$index.' IN ('.implode(',', $ids).')'; + + return $sql; + } + + // -------------------------------------------------------------------- + + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * If the database does not support the truncate() command + * This function maps to "DELETE FROM table" + * + * @access public + * @param string the table name + * @return string + */ + function _truncate($table) + { + return "TRUNCATE ".$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @access public + * @param string the table name + * @param array the where clause + * @param string the limit clause + * @return string + */ + function _delete($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.$limit; + } + + // -------------------------------------------------------------------- + + /** + * Limit string + * + * Generates a platform-specific LIMIT clause + * + * @access public + * @param string the sql query string + * @param integer the number of rows to limit the query to + * @param integer the offset value + * @return string + */ + function _limit($sql, $limit, $offset) + { + if ($offset == 0) + { + $offset = ''; + } + else + { + $offset .= ", "; + } + + return $sql."LIMIT ".$offset.$limit; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @access public + * @param resource + * @return void + */ + function _close($conn_id) + { + @cubrid_close($conn_id); + } + +} + + +/* End of file cubrid_driver.php */ +/* Location: ./system/database/drivers/cubrid/cubrid_driver.php */ \ No newline at end of file -- cgit v1.2.3-24-g4f1b From ee3e594893d28ca6370d24d2a4406c1897959175 Mon Sep 17 00:00:00 2001 From: Esen Sagynov Date: Wed, 10 Aug 2011 03:22:58 -0700 Subject: Added field name wrappers (") in insert/update/replace/_process_fields/_create_table functions to avoid reserved word conflicts. --- system/database/drivers/cubrid/cubrid_driver.php | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'system/database/drivers/cubrid/cubrid_driver.php') diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php index ef0b5b451..9b5d86aa6 100644 --- a/system/database/drivers/cubrid/cubrid_driver.php +++ b/system/database/drivers/cubrid/cubrid_driver.php @@ -545,7 +545,7 @@ class CI_DB_cubrid_driver extends CI_DB */ function _insert($table, $keys, $values) { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; + return "INSERT INTO ".$table." (\"".implode('\", \"', $keys)."\") VALUES (".implode(', ', $values).")"; } // -------------------------------------------------------------------- @@ -564,7 +564,7 @@ class CI_DB_cubrid_driver extends CI_DB */ function _replace($table, $keys, $values) { - return "REPLACE INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; + return "REPLACE INTO ".$table." (\"".implode('", "', $keys)."\") VALUES (".implode(', ', $values).")"; } // -------------------------------------------------------------------- @@ -582,7 +582,7 @@ class CI_DB_cubrid_driver extends CI_DB */ function _insert_batch($table, $keys, $values) { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES ".implode(', ', $values); + return "INSERT INTO ".$table." (\"".implode('", "', $keys)."\") VALUES ".implode(', ', $values); } // -------------------------------------------------------------------- @@ -605,7 +605,7 @@ class CI_DB_cubrid_driver extends CI_DB { foreach ($values as $key => $val) { - $valstr[] = $key . ' = ' . $val; + $valstr[] = sprintf('"%s" = %s', $key, $val); } $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; -- cgit v1.2.3-24-g4f1b From 2ab2b1e3201a1eca2954ca463df744d5cd2e46cd Mon Sep 17 00:00:00 2001 From: Esen Sagynov Date: Thu, 11 Aug 2011 00:41:16 -0700 Subject: Added back /application/* files (removed in previous commit accidently). Corrected formatting/indenting in CUBRID Driver classes. Added myself as the driver author. Applied the MySQL fix, previously accepted in pull request #29, to CUBRID Driver. --- system/database/drivers/cubrid/cubrid_driver.php | 98 ++++++++++++++---------- 1 file changed, 57 insertions(+), 41 deletions(-) (limited to 'system/database/drivers/cubrid/cubrid_driver.php') diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php index 9b5d86aa6..3f0109249 100644 --- a/system/database/drivers/cubrid/cubrid_driver.php +++ b/system/database/drivers/cubrid/cubrid_driver.php @@ -1,4 +1,4 @@ -port == '') { $this->port = self::DEFAULT_PORT; - } - - $conn = cubrid_connect($this->hostname, $this->port, $this->database, $this->username, $this->password); - - if ($conn){ - if (isset($this->auto_commit) && !$this->auto_commit){ - cubrid_set_autocommit($conn, CUBRID_AUTOCOMMIT_FALSE); - } - else{ - cubrid_set_autocommit($conn, CUBRID_AUTOCOMMIT_TRUE); - $this->auto_commit = TRUE; - } - } - - return $conn; + } + + $conn = cubrid_connect($this->hostname, $this->port, $this->database, $this->username, $this->password); + + if ($conn) + { + // Check if a user wants to run queries in dry, i.e. run the + // queries but not commit them. + if (isset($this->auto_commit) && ! $this->auto_commit) + { + cubrid_set_autocommit($conn, CUBRID_AUTOCOMMIT_FALSE); + } + else + { + cubrid_set_autocommit($conn, CUBRID_AUTOCOMMIT_TRUE); + $this->auto_commit = TRUE; + } + } + + return $conn; } // -------------------------------------------------------------------- @@ -131,8 +137,7 @@ class CI_DB_cubrid_driver extends CI_DB // In CUBRID there is no need to select a database as the database // is chosen at the connection time. // So, to determine if the database is "selected", all we have to - // do is return the connection identifier which can be later - // checked if it has been established or not. + // do is ping the server and return that value. return cubrid_ping($this->conn_id); } @@ -155,7 +160,7 @@ class CI_DB_cubrid_driver extends CI_DB } // -------------------------------------------------------------------- - + /** * Version number query string * @@ -164,6 +169,11 @@ class CI_DB_cubrid_driver extends CI_DB */ function _version() { + // To obtain the CUBRID Server version, no need to run the SQL query. + // CUBRID PHP API provides a function to determin this value. + // This is why we also need to add 'cubrid' value to the list of + // $driver_version_exceptions array in DB_driver class in + // version() function. return cubrid_get_server_info($this->conn_id); } @@ -195,6 +205,7 @@ class CI_DB_cubrid_driver extends CI_DB */ function _prep_query($sql) { + // No need to prepare return $sql; } @@ -224,8 +235,10 @@ class CI_DB_cubrid_driver extends CI_DB // even if the queries produce a successful result. $this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE; - if (cubrid_get_autocommit($this->conn_id)) - cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_FALSE); + if (cubrid_get_autocommit($this->conn_id)) + { + cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_FALSE); + } return TRUE; } @@ -253,9 +266,11 @@ class CI_DB_cubrid_driver extends CI_DB cubrid_commit($this->conn_id); - if ($this->auto_commit && !cubrid_get_autocommit($this->conn_id)) - cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); - + if ($this->auto_commit && ! cubrid_get_autocommit($this->conn_id)) + { + cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); + } + return TRUE; } @@ -282,9 +297,11 @@ class CI_DB_cubrid_driver extends CI_DB cubrid_rollback($this->conn_id); - if ($this->auto_commit && !cubrid_get_autocommit($this->conn_id)) - cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); - + if ($this->auto_commit && ! cubrid_get_autocommit($this->conn_id)) + { + cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); + } + return TRUE; } @@ -303,12 +320,12 @@ class CI_DB_cubrid_driver extends CI_DB if (is_array($str)) { foreach ($str as $key => $val) - { + { $str[$key] = $this->escape_str($val, $like); - } + } - return $str; - } + return $str; + } if (function_exists('cubrid_real_escape_string') AND is_resource($this->conn_id)) { @@ -322,7 +339,6 @@ class CI_DB_cubrid_driver extends CI_DB // escape LIKE condition wildcards if ($like === TRUE) { - //TODO: check this $str = str_replace(array('%', '_'), array('\\%', '\\_'), $str); } @@ -545,7 +561,7 @@ class CI_DB_cubrid_driver extends CI_DB */ function _insert($table, $keys, $values) { - return "INSERT INTO ".$table." (\"".implode('\", \"', $keys)."\") VALUES (".implode(', ', $values).")"; + return "INSERT INTO ".$table." (\"".implode('", "', $keys)."\") VALUES (".implode(', ', $values).")"; } // -------------------------------------------------------------------- @@ -648,7 +664,7 @@ class CI_DB_cubrid_driver extends CI_DB { if ($field != $index) { - $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field]; + $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field]; } } } -- cgit v1.2.3-24-g4f1b From 448148b0d8ed1459662cfe501197686b8a48b609 Mon Sep 17 00:00:00 2001 From: Greg Aker Date: Sat, 20 Aug 2011 14:23:14 -0500 Subject: Fixed a bug (#200) where MySQL queries would be malformed after calling db->count_all() then db->get() --- system/database/drivers/cubrid/cubrid_driver.php | 1 + 1 file changed, 1 insertion(+) (limited to 'system/database/drivers/cubrid/cubrid_driver.php') diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php index 3f0109249..d01140412 100644 --- a/system/database/drivers/cubrid/cubrid_driver.php +++ b/system/database/drivers/cubrid/cubrid_driver.php @@ -398,6 +398,7 @@ class CI_DB_cubrid_driver extends CI_DB { } $row = $query->row(); + $this->_reset_select(); return (int) $row->numrows; } -- cgit v1.2.3-24-g4f1b