diff options
Diffstat (limited to 'system/database/drivers/postgre')
| -rw-r--r-- | system/database/drivers/postgre/postgre_driver.php | 513 | ||||
| -rw-r--r-- | system/database/drivers/postgre/postgre_forge.php | 252 | ||||
| -rw-r--r-- | system/database/drivers/postgre/postgre_result.php | 78 | ||||
| -rw-r--r-- | system/database/drivers/postgre/postgre_utility.php | 76 |
4 files changed, 340 insertions, 579 deletions
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php index 5367f9759..84bf768ee 100644 --- a/system/database/drivers/postgre/postgre_driver.php +++ b/system/database/drivers/postgre/postgre_driver.php @@ -1,76 +1,120 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * 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 ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @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 */ -// ------------------------------------------------------------------------ - /** * 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 * @subpackage Drivers * @category Database - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/database/ */ class CI_DB_postgre_driver extends CI_DB { - var $dbdriver = 'postgre'; + public $dbdriver = 'postgre'; - var $_escape_char = '"'; + protected $_escape_char = '"'; // clause and character used for LIKE escape sequences - var $_like_escape_str = " ESCAPE '%s' "; - var $_like_escape_chr = '!'; + 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. */ - var $_count_string = "SELECT COUNT(*) AS "; - var $_random_keyword = ' RANDOM()'; // database specific random keyword + protected $_count_string = 'SELECT COUNT(*) AS '; + protected $_random_keyword = ' RANDOM()'; // database specific random keyword /** - * Connection String + * Constructor * - * @access private - * @return string + * Creates a DSN string to be used for db_connect() and db_pconnect() + * + * @return void */ - function _connect_string() + public function __construct($params) { - $components = array( - 'hostname' => 'host', - 'port' => 'port', - 'database' => 'dbname', - 'username' => 'user', - 'password' => 'password' - ); - - $connect_string = ""; - foreach ($components as $key => $val) + parent::__construct($params); + + if ( ! empty($this->dsn)) { - if (isset($this->$key) && $this->$key != '') + return; + } + + $this->dsn === '' OR $this->dsn = ''; + + if (strpos($this->hostname, '/') !== FALSE) + { + // If UNIX sockets are used, we shouldn't set a port + $this->port = ''; + } + + $this->hostname === '' OR $this->dsn = 'host='.$this->hostname.' '; + + if ( ! empty($this->port) && ctype_digit($this->port)) + { + $this->dsn .= 'port='.$this->port.' '; + } + + if ($this->username !== '') + { + $this->dsn .= 'user='.$this->username.' '; + + /* An empty password is valid! + * + * $db['password'] = NULL must be done in order to ignore it. + */ + $this->password === NULL OR $this->dsn .= "password='".$this->password."' "; + } + + $this->database === '' OR $this->dsn .= 'dbname='.$this->database.' '; + + /* We don't have these options as elements in our standard configuration + * array, but they might be set by parse_url() if the configuration was + * provided via string. Example: + * + * postgre://username:password@localhost:5432/database?connect_timeout=5&sslmode=1 + */ + foreach (array('connect_timeout', 'options', 'sslmode', 'service') as $key) + { + if (isset($this->$key) && is_string($this->key) && $this->key !== '') { - $connect_string .= " $val=".$this->$key; + $this->dsn .= $key."='".$this->key."' "; } } - return trim($connect_string); + + $this->dsn = rtrim($this->dsn); } // -------------------------------------------------------------------- @@ -78,12 +122,11 @@ class CI_DB_postgre_driver extends CI_DB { /** * Non-persistent database connection * - * @access private called by the base class * @return resource */ - function db_connect() + public function db_connect() { - return @pg_connect($this->_connect_string()); + return @pg_connect($this->dsn); } // -------------------------------------------------------------------- @@ -91,12 +134,11 @@ class CI_DB_postgre_driver extends CI_DB { /** * Persistent database connection * - * @access private called by the base class * @return resource */ - function db_pconnect() + public function db_pconnect() { - return @pg_pconnect($this->_connect_string()); + return @pg_pconnect($this->dsn); } // -------------------------------------------------------------------- @@ -107,10 +149,9 @@ class CI_DB_postgre_driver extends CI_DB { * 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() + public function reconnect() { if (pg_ping($this->conn_id) === FALSE) { @@ -121,44 +162,43 @@ class CI_DB_postgre_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Select the database - * - * @access private called by the base class - * @return resource - */ - function db_select() - { - // Not needed for Postgre so we'll return TRUE - return TRUE; - } - - // -------------------------------------------------------------------- - - /** * Set client character set * - * @access public * @param string - * @param string - * @return resource + * @return bool */ - function db_set_charset($charset, $collation) + protected function _db_set_charset($charset) { - // @todo - add support if needed - return TRUE; + return (pg_set_client_encoding($this->conn_id, $charset) === 0); } // -------------------------------------------------------------------- /** - * Version number query string + * Database version number * - * @access public * @return string */ - function _version() + public function version() { - return "SELECT version() AS ver"; + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + if (($pg_version = pg_version($this->conn_id)) === FALSE) + { + return FALSE; + } + + /* If PHP was compiled with PostgreSQL lib versions earlier + * than 7.4, pg_version() won't return the server version + * and so we'll have to fall back to running a query in + * order to get it. + */ + return isset($pg_version['server']) + ? $this->data_cache['version'] = $pg_version['server'] + : parent::version(); } // -------------------------------------------------------------------- @@ -166,49 +206,26 @@ class CI_DB_postgre_driver extends CI_DB { /** * Execute the query * - * @access private called by the base class * @param string an SQL query * @return resource */ - function _execute($sql) + protected function _execute($sql) { - $sql = $this->_prep_query($sql); return @pg_query($this->conn_id, $sql); } // -------------------------------------------------------------------- /** - * Prep the query - * - * If needed, each database adapter can prep the query string - * - * @access private called by execute() - * @param string an SQL query - * @return string - */ - function _prep_query($sql) - { - return $sql; - } - - // -------------------------------------------------------------------- - - /** * Begin Transaction * - * @access public + * @param bool * @return bool */ - function trans_begin($test_mode = FALSE) + 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; } @@ -216,9 +233,9 @@ class CI_DB_postgre_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); - return @pg_exec($this->conn_id, "begin"); + return (bool) @pg_query($this->conn_id, 'BEGIN'); } // -------------------------------------------------------------------- @@ -226,23 +243,17 @@ class CI_DB_postgre_driver extends CI_DB { /** * Commit Transaction * - * @access public * @return bool */ - function trans_commit() + 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 $this->_trans_depth > 0) { return TRUE; } - return @pg_exec($this->conn_id, "commit"); + return (bool) @pg_query($this->conn_id, 'COMMIT'); } // -------------------------------------------------------------------- @@ -250,23 +261,17 @@ class CI_DB_postgre_driver extends CI_DB { /** * Rollback Transaction * - * @access public * @return bool */ - function trans_rollback() + 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 $this->_trans_depth > 0) { return TRUE; } - return @pg_exec($this->conn_id, "rollback"); + return (bool) @pg_query($this->conn_id, 'ROLLBACK'); } // -------------------------------------------------------------------- @@ -274,12 +279,11 @@ class CI_DB_postgre_driver extends CI_DB { /** * Escape String * - * @access public * @param string * @param bool whether or not the string will be used in a LIKE condition * @return string */ - function escape_str($str, $like = FALSE) + public function escape_str($str, $like = FALSE) { if (is_array($str)) { @@ -296,9 +300,9 @@ class CI_DB_postgre_driver extends CI_DB { // escape LIKE condition wildcards if ($like === TRUE) { - $str = str_replace( array('%', '_', $this->_like_escape_chr), - array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr), - $str); + return str_replace(array($this->_like_escape_chr, '%', '_'), + array($this->_like_escape_chr.$this->_like_escape_chr, $this->_like_escape_chr.'%', $this->_like_escape_chr.'_'), + $str); } return $str; @@ -309,10 +313,9 @@ class CI_DB_postgre_driver extends CI_DB { /** * Affected Rows * - * @access public - * @return integer + * @return int */ - function affected_rows() + public function affected_rows() { return @pg_affected_rows($this->result_id); } @@ -322,40 +325,45 @@ class CI_DB_postgre_driver extends CI_DB { /** * Insert ID * - * @access public - * @return integer + * @return string */ - function insert_id() + public function insert_id() { - $v = $this->_version(); - $v = $v['server']; + $v = pg_version($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) $query->ins_id; } // -------------------------------------------------------------------- @@ -366,27 +374,25 @@ class CI_DB_postgre_driver extends CI_DB { * Generates a platform-specific query string that counts all records in * the specified database * - * @access public * @param string * @return string */ - function count_all($table = '') + public 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)); - + $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(); + $query = $query->row(); $this->_reset_select(); - return (int) $row->numrows; + return (int) $query->numrows; } // -------------------------------------------------------------------- @@ -396,17 +402,16 @@ class CI_DB_postgre_driver extends CI_DB { * * Generates a platform-specific query string so that the table names can be fetched * - * @access private - * @param boolean + * @param bool * @return string */ - function _list_tables($prefix_limit = FALSE) + protected function _list_tables($prefix_limit = FALSE) { $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'"; - if ($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 $sql; @@ -419,13 +424,12 @@ class CI_DB_postgre_driver extends CI_DB { * * Generates a platform-specific query string so that the column names can be fetched * - * @access public * @param string the table name * @return string */ - function _list_columns($table = '') + 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 = '".$table."'"; } // -------------------------------------------------------------------- @@ -435,81 +439,27 @@ class CI_DB_postgre_driver extends CI_DB { * * Generates a platform-specific query so that the column data can be retrieved * - * @access public * @param string the table name - * @return object - */ - function _field_data($table) - { - return "SELECT * FROM ".$table." LIMIT 1"; - } - - // -------------------------------------------------------------------- - - /** - * The error message string - * - * @access private * @return string */ - function _error_message() + protected function _field_data($table) { - return pg_last_error($this->conn_id); + return 'SELECT * FROM '.$table.' LIMIT 1'; } // -------------------------------------------------------------------- /** - * The error message number + * Error * - * @access private - * @return integer - */ - function _error_number() - { - return ''; - } - - // -------------------------------------------------------------------- - - /** - * Escape the SQL Identifiers + * Returns an array containing code and message of the last + * database error that has occured. * - * This function escapes column and table names - * - * @access private - * @param string - * @return string + * @return array */ - function _escape_identifiers($item) + public function error() { - if ($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, $str); + return array('code' => '', 'message' => pg_last_error($this->conn_id)); } // -------------------------------------------------------------------- @@ -520,11 +470,10 @@ class CI_DB_postgre_driver extends CI_DB { * 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 + * @param array + * @return string */ - function _from_tables($tables) + protected function _from_tables($tables) { if ( ! is_array($tables)) { @@ -537,90 +486,33 @@ class CI_DB_postgre_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @access public - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - function _insert($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - /** - * Insert_batch statement - * - * Generates a platform-specific insert string from the supplied data - * - * @access public - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - function _insert_batch($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES ".implode(', ', $values); - } - - // -------------------------------------------------------------------- - - /** * Update statement * * Generates a platform-specific update string from the supplied data * - * @access public * @param string the table name * @param array the update data * @param array the where clause - * @param array the orderby clause - * @param array the limit clause + * @param array the orderby clause (ignored) + * @param array the limit clause (ignored) + * @param array the like clause * @return string */ - function _update($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; } - $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; - - return $sql; - } - - // -------------------------------------------------------------------- + if ( ! empty($like)) + { + $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); + } - /** - * Truncate statement - * - * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" - * - * @access public - * @param string the table name - * @return string - */ - function _truncate($table) - { - return "TRUNCATE ".$table; + return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; } // -------------------------------------------------------------------- @@ -630,55 +522,37 @@ class CI_DB_postgre_driver extends CI_DB { * * 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 + * @param array the like clause + * @param string the limit clause (ignored) * @return string */ - function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($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(' ', $like); - return "DELETE FROM ".$table.$conditions.$limit; + return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); } // -------------------------------------------------------------------- + /** * Limit string * * Generates a platform-specific LIMIT clause * - * @access public * @param string the sql query string - * @param integer the number of rows to limit the query to - * @param integer the offset value + * @param int the number of rows to limit the query to + * @param int the offset value * @return string */ - function _limit($sql, $limit, $offset) + protected function _limit($sql, $limit, $offset) { - $sql .= "LIMIT ".$limit; - - if ($offset > 0) - { - $sql .= " OFFSET ".$offset; - } - - return $sql; + return $sql.' LIMIT '.$limit.($offset == 0 ? '' : ' OFFSET '.$offset); } // -------------------------------------------------------------------- @@ -686,18 +560,15 @@ class CI_DB_postgre_driver extends CI_DB { /** * Close DB Connection * - * @access public * @param resource * @return void */ - function _close($conn_id) + protected function _close($conn_id) { @pg_close($conn_id); } - } - /* 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 91a1c6861..94c97af50 100644 --- a/system/database/drivers/postgre/postgre_forge.php +++ b/system/database/drivers/postgre/postgre_forge.php @@ -1,99 +1,67 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * 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 ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @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 */ -// ------------------------------------------------------------------------ - /** * Postgre Forge Class * * @category Database - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/database/ */ class CI_DB_postgre_forge extends CI_DB_forge { - /** - * Create database - * - * @access private - * @param string the database name - * @return bool - */ - function _create_database($name) - { - return "CREATE DATABASE ".$name; - } - - // -------------------------------------------------------------------- + protected $_drop_table = 'DROP TABLE IF EXISTS %s CASCADE'; /** - * Drop database + * Process Fields * - * @access private - * @param string the database name - * @return bool - */ - function _drop_database($name) - { - return "DROP DATABASE ".$name; - } - - // -------------------------------------------------------------------- - - /** - * Create Table - * - * @access private - * @param string the table name - * @param array the fields - * @param mixed primary key(s) - * @param mixed key(s) - * @param boolean should 'IF NOT EXISTS' be added to the SQL - * @return bool + * @param mixed the fields + * @return string */ - function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _process_fields($fields, $primary_keys = array()) { - $sql = 'CREATE TABLE '; - - if ($if_not_exists === TRUE) - { - if ($this->db->table_exists($table)) - { - return "SELECT * FROM $table"; // Needs to return innocous but valid SQL statement - } - } - - $sql .= $this->db->_escape_identifiers($table)." ("; + $sql = ''; $current_field_count = 0; - foreach ($fields as $field=>$attributes) + foreach ($fields as $field => $attributes) { // Numeric field names aren't allowed in databases, so if the key is // numeric, we know it was assigned by PHP and the developer manually // entered the field information, so we'll simply add it to the list if (is_numeric($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); + $sql .= "\n\t".$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'])) @@ -125,44 +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 @@ -172,15 +120,45 @@ class CI_DB_postgre_forge extends CI_DB_forge { } } + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Create Table + * + * @param string the table name + * @param array the fields + * @param mixed primary key(s) + * @param mixed key(s) + * @param bool should 'IF NOT EXISTS' be added to the SQL + * @return bool + */ + protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + { + $sql = 'CREATE TABLE '; + + if ($if_not_exists === TRUE) + { + // PostgreSQL doesn't support IF NOT EXISTS syntax so we check if table exists manually + if ($this->db->table_exists($table)) + { + return TRUE; + } + } + + $sql .= $this->db->escape_identifiers($table).' ('.$this->_process_fields($fields, $primary_keys); + if (count($primary_keys) > 0) { - // Something seems to break when passing an array to _protect_identifiers() + // Something seems to break when passing an array to protect_identifiers() foreach ($primary_keys as $index => $key) { - $primary_keys[$index] = $this->db->_protect_identifiers($key); + $primary_keys[$index] = $this->db->protect_identifiers($key); } - $sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")"; + $sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')'; } $sql .= "\n);"; @@ -191,16 +169,16 @@ class CI_DB_postgre_forge extends CI_DB_forge { { if (is_array($key)) { - $key = $this->db->_protect_identifiers($key); + $key = $this->db->protect_identifiers($key); } else { - $key = array($this->db->_protect_identifiers($key)); + $key = array($this->db->protect_identifiers($key)); } foreach ($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.' ('.$field.'); '; } } } @@ -211,87 +189,33 @@ class CI_DB_postgre_forge extends CI_DB_forge { // -------------------------------------------------------------------- /** - * Drop Table - * - * @access private - * @return bool - */ - function _drop_table($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 * Called by add_column(), drop_column(), and column_alter(), * - * @access private * @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 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 object - */ - 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') - { - return $sql; - } - - $sql .= " $column_definition"; - - if ($default_value != '') - { - $sql .= " DEFAULT \"$default_value\""; - } - - if ($null === NULL) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - - if ($after_field != '') - { - $sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field); - } - - return $sql; - - } - - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @access private - * @param string the old table name - * @param string the new table name * @return string */ - function _rename_table($table_name, $new_table_name) - { - $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table_name)." RENAME TO ".$this->db->_protect_identifiers($new_table_name); - return $sql; - } - + protected function _alter_table($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') + { + return $sql.$this->db->protect_identifiers($fields); + } + + return $sql.$this->_process_fields($fields) + .($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : ''); + } } diff --git a/system/database/drivers/postgre/postgre_result.php b/system/database/drivers/postgre/postgre_result.php index e9a1d1607..f913bc9eb 100644 --- a/system/database/drivers/postgre/postgre_result.php +++ b/system/database/drivers/postgre/postgre_result.php @@ -1,27 +1,37 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * 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 ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @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 */ -// ------------------------------------------------------------------------ - /** * Postgres Result Class * * This class extends the parent result class: CI_DB_result * * @category Database - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/database/ */ class CI_DB_postgre_result extends CI_DB_result { @@ -29,10 +39,9 @@ class CI_DB_postgre_result extends CI_DB_result { /** * Number of rows in the result set * - * @access public - * @return integer + * @return int */ - function num_rows() + public function num_rows() { return @pg_num_rows($this->result_id); } @@ -42,10 +51,9 @@ class CI_DB_postgre_result extends CI_DB_result { /** * Number of fields in the result set * - * @access public - * @return integer + * @return int */ - function num_fields() + public function num_fields() { return @pg_num_fields($this->result_id); } @@ -57,13 +65,12 @@ class CI_DB_postgre_result extends CI_DB_result { * * Generates an array of column names * - * @access public * @return array */ - function list_fields() + 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); } @@ -78,22 +85,19 @@ class CI_DB_postgre_result extends CI_DB_result { * * Generates an array of objects containing field meta-data * - * @access public * @return array */ - function field_data() + 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 $retval; @@ -104,9 +108,9 @@ class CI_DB_postgre_result extends CI_DB_result { /** * Free the result * - * @return null + * @return void */ - function free_result() + public function free_result() { if (is_resource($this->result_id)) { @@ -120,14 +124,13 @@ class CI_DB_postgre_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 * - * @access private - * @return array + * @return bool */ - function _data_seek($n = 0) + protected function _data_seek($n = 0) { return pg_result_seek($this->result_id, $n); } @@ -139,10 +142,9 @@ class CI_DB_postgre_result extends CI_DB_result { * * Returns the result set as an array * - * @access private * @return array */ - function _fetch_assoc() + protected function _fetch_assoc() { return pg_fetch_assoc($this->result_id); } @@ -154,16 +156,14 @@ class CI_DB_postgre_result extends CI_DB_result { * * Returns the result set as an object * - * @access private * @return object */ - function _fetch_object() + protected function _fetch_object() { return pg_fetch_object($this->result_id); } } - /* End of file postgre_result.php */ /* Location: ./system/database/drivers/postgre/postgre_result.php */
\ No newline at end of file diff --git a/system/database/drivers/postgre/postgre_utility.php b/system/database/drivers/postgre/postgre_utility.php index 741c52ea8..c95e6df0c 100644 --- a/system/database/drivers/postgre/postgre_utility.php +++ b/system/database/drivers/postgre/postgre_utility.php @@ -1,88 +1,54 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * 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 ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @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 */ -// ------------------------------------------------------------------------ - /** * Postgre Utility Class * * @category Database - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/database/ */ class CI_DB_postgre_utility extends CI_DB_utility { - /** - * List databases - * - * @access private - * @return bool - */ - function _list_databases() - { - return "SELECT datname FROM pg_database"; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Is table optimization supported in Postgre? - * - * @access private - * @param string the table name - * @return object - */ - function _optimize_table($table) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Are table repairs supported in Postgre? - * - * @access private - * @param string the table name - * @return object - */ - function _repair_table($table) - { - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_list_databases = 'SELECT datname FROM pg_database'; + protected $_optimize_table = 'REINDEX TABLE %s'; /** * Postgre Export * - * @access private * @param array Preferences * @return mixed */ - function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported return $this->db->display_error('db_unsuported_feature'); } } - /* End of file postgre_utility.php */ /* Location: ./system/database/drivers/postgre/postgre_utility.php */
\ No newline at end of file |