427 lines
9.7 KiB
PHP
Executable File
427 lines
9.7 KiB
PHP
Executable File
<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP 5.2.4 or newer
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*
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* NOTICE OF LICENSE
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*
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* Licensed under the Open Software License version 3.0
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*
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* This source file is subject to the Open Software License (OSL 3.0) that is
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* bundled with this package in the files license.txt / license.rst. It is
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* also available through the world wide web at this URL:
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* http://opensource.org/licenses/OSL-3.0
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* If you did not receive a copy of the license and are unable to obtain it
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* through the world wide web, please send an email to
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* licensing@ellislab.com so we can send you a copy immediately.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
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* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
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* @link http://codeigniter.com
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* @since Version 2.1
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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* CUBRID Database Adapter Class
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*
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* Note: _DB is an extender class that the app controller
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* creates dynamically based on whether the query builder
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* class is being used or not.
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*
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* @package CodeIgniter
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* @subpackage Drivers
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* @category Database
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* @author Esen Sagynov
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* @link http://codeigniter.com/user_guide/database/
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*/
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class CI_DB_cubrid_driver extends CI_DB {
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/**
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* Database driver
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*
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* @var string
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*/
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public $dbdriver = 'cubrid';
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/**
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* Auto-commit flag
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*
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* @var bool
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*/
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public $auto_commit = TRUE;
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// --------------------------------------------------------------------
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/**
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* Identifier escape character
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*
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* @var string
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*/
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protected $_escape_char = '`';
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/**
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* ORDER BY random keyword
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*
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* @var array
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*/
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protected $_random_keyword = array('RANDOM()', 'RANDOM(%d)');
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// --------------------------------------------------------------------
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/**
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* Class constructor
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*
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* @param array $params
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* @return void
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*/
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public function __construct($params)
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{
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parent::__construct($params);
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if (preg_match('/^CUBRID:[^:]+(:[0-9][1-9]{0,4})?:[^:]+:[^:]*:[^:]*:(\?.+)?$/', $this->dsn, $matches))
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{
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if (stripos($matches[2], 'autocommit=off') !== FALSE)
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{
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$this->auto_commit = FALSE;
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}
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}
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else
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{
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// If no port is defined by the user, use the default value
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empty($this->port) OR $this->port = 33000;
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}
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}
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// --------------------------------------------------------------------
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/**
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* Non-persistent database connection
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*
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* @param bool $persistent
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* @return resource
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*/
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public function db_connect($persistent = FALSE)
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{
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if (preg_match('/^CUBRID:[^:]+(:[0-9][1-9]{0,4})?:[^:]+:([^:]*):([^:]*):(\?.+)?$/', $this->dsn, $matches))
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{
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$func = ($persistent !== TRUE) ? 'cubrid_connect_with_url' : 'cubrid_pconnect_with_url';
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return ($matches[2] === '' && $matches[3] === '' && $this->username !== '' && $this->password !== '')
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? $func($this->dsn, $this->username, $this->password)
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: $func($this->dsn);
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}
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$func = ($persistent !== TRUE) ? 'cubrid_connect' : 'cubrid_pconnect';
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return ($this->username !== '')
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? $func($this->hostname, $this->port, $this->database, $this->username, $this->password)
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: $func($this->hostname, $this->port, $this->database);
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}
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// --------------------------------------------------------------------
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/**
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* Reconnect
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*
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* Keep / reestablish the db connection if no queries have been
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* sent for a length of time exceeding the server's idle timeout
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*
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* @return void
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*/
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public function reconnect()
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{
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if (cubrid_ping($this->conn_id) === FALSE)
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{
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$this->conn_id = FALSE;
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}
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}
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// --------------------------------------------------------------------
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/**
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* Database version number
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*
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* @return string
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*/
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public function version()
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{
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if (isset($this->data_cache['version']))
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{
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return $this->data_cache['version'];
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}
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elseif ( ! $this->conn_id)
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{
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$this->initialize();
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}
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return ( ! $this->conn_id OR ($version = cubrid_get_server_info($this->conn_id)) === FALSE)
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? FALSE
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: $this->data_cache['version'] = $version;
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}
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// --------------------------------------------------------------------
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/**
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* Execute the query
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*
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* @param string $sql an SQL query
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* @return resource
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*/
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protected function _execute($sql)
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{
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return cubrid_query($sql, $this->conn_id);
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}
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// --------------------------------------------------------------------
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/**
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* Begin Transaction
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*
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* @param bool $test_mode
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* @return bool
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*/
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public function trans_begin($test_mode = FALSE)
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{
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// When transactions are nested we only begin/commit/rollback the outermost ones
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if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
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{
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return TRUE;
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}
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// Reset the transaction failure flag.
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// If the $test_mode flag is set to TRUE transactions will be rolled back
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// even if the queries produce a successful result.
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$this->_trans_failure = ($test_mode === TRUE);
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if (cubrid_get_autocommit($this->conn_id))
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{
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cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_FALSE);
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}
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return TRUE;
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}
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// --------------------------------------------------------------------
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/**
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* Commit Transaction
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*
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* @return bool
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*/
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public function trans_commit()
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{
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// When transactions are nested we only begin/commit/rollback the outermost ones
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if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
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{
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return TRUE;
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}
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cubrid_commit($this->conn_id);
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if ($this->auto_commit && ! cubrid_get_autocommit($this->conn_id))
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{
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cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE);
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}
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return TRUE;
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}
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// --------------------------------------------------------------------
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/**
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* Rollback Transaction
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*
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* @return bool
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*/
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public function trans_rollback()
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{
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// When transactions are nested we only begin/commit/rollback the outermost ones
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if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
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{
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return TRUE;
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}
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cubrid_rollback($this->conn_id);
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if ($this->auto_commit && ! cubrid_get_autocommit($this->conn_id))
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{
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cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE);
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}
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return TRUE;
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}
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// --------------------------------------------------------------------
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/**
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* Platform-dependant string escape
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*
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* @param string
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* @return string
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*/
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protected function _escape_str($str)
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{
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if (function_exists('cubrid_real_escape_string') &&
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(is_resource($this->conn_id)
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OR (get_resource_type($this->conn_id) === 'Unknown' && preg_match('/Resource id #/', strval($this->conn_id)))))
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{
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return cubrid_real_escape_string($str, $this->conn_id);
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}
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return addslashes($str);
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}
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// --------------------------------------------------------------------
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/**
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* Affected Rows
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*
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* @return int
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*/
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public function affected_rows()
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{
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return cubrid_affected_rows();
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}
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// --------------------------------------------------------------------
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/**
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* Insert ID
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*
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* @return int
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*/
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public function insert_id()
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{
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return cubrid_insert_id($this->conn_id);
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}
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// --------------------------------------------------------------------
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/**
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* List table query
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*
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* Generates a platform-specific query string so that the table names can be fetched
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*
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* @param bool $prefix_limit
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* @return string
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*/
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protected function _list_tables($prefix_limit = FALSE)
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{
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$sql = 'SHOW TABLES';
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if ($prefix_limit !== FALSE && $this->dbprefix !== '')
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{
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return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";
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}
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return $sql;
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}
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// --------------------------------------------------------------------
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/**
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* Show column query
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*
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* Generates a platform-specific query string so that the column names can be fetched
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*
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* @param string $table
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* @return string
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*/
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protected function _list_columns($table = '')
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{
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return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE);
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}
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// --------------------------------------------------------------------
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/**
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* Returns an object with field data
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*
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* @param string $table
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* @return array
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*/
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public function field_data($table = '')
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{
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if ($table === '')
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{
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return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
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}
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if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE)
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{
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return FALSE;
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}
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$query = $query->result_object();
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$retval = array();
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for ($i = 0, $c = count($query); $i < $c; $i++)
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{
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$retval[$i] = new stdClass();
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$retval[$i]->name = $query[$i]->Field;
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sscanf($query[$i]->Type, '%[a-z](%d)',
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$retval[$i]->type,
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$retval[$i]->max_length
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);
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$retval[$i]->default = $query[$i]->Default;
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$retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI');
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}
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return $retval;
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}
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// --------------------------------------------------------------------
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/**
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* Error
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*
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* Returns an array containing code and message of the last
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* database error that has occured.
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*
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* @return array
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*/
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public function error()
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{
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return array('code' => cubrid_errno($this->conn_id), 'message' => cubrid_error($this->conn_id));
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}
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// --------------------------------------------------------------------
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/**
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* FROM tables
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*
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* Groups tables in FROM clauses if needed, so there is no confusion
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* about operator precedence.
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*
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* @return string
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*/
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protected function _from_tables()
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{
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if ( ! empty($this->qb_join) && count($this->qb_from) > 1)
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{
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return '('.implode(', ', $this->qb_from).')';
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}
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return implode(', ', $this->qb_from);
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}
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// --------------------------------------------------------------------
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/**
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* Close DB Connection
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*
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* @return void
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*/
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protected function _close()
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{
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cubrid_close($this->conn_id);
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}
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}
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/* End of file cubrid_driver.php */
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/* Location: ./system/database/drivers/cubrid/cubrid_driver.php */ |