<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * * An open source application development framework for PHP 4.3.2 or newer * * @package CodeIgniter * @author ExpressionEngine Dev Team * @copyright Copyright (c) 2006, EllisLab, Inc. * @license http://codeigniter.com/user_guide/license.html * @link http://codeigniter.com * @since Version 1.0 * @filesource */ // ------------------------------------------------------------------------ /** * Initialize the database * * @category Database * @author ExpressionEngine Dev Team * @link http://codeigniter.com/user_guide/database/ */ function &DB($params = '', $active_record_override = FALSE) { // Load the DB config file if a DSN string wasn't passed if (is_string($params) AND strpos($params, '://') === FALSE) { include(APPPATH.'config/database'.EXT); if ( ! isset($db) OR count($db) == 0) { show_error('No database connection settings were found in the database config file.'); } if ($params != '') { $active_group = $params; } if ( ! isset($active_group) OR ! isset($db[$active_group])) { show_error('You have specified an invalid database connection group.'); } $params = $db[$active_group]; } // No DB specified yet? Beat them senseless... if ( ! isset($params['dbdriver']) OR $params['dbdriver'] == '') { show_error('You have not selected a database type to connect to.'); } // Load the DB classes. Note: Since the active record class is optional // we need to dynamically create a class that extends proper parent class // based on whether we're using the active record class or not. // Kudos to Paul for discovering this clever use of eval() if ($active_record_override == TRUE) { $active_record = TRUE; } require_once(BASEPATH.'database/DB_driver'.EXT); if (! isset($active_record) OR $active_record == TRUE) { require_once(BASEPATH.'database/DB_active_rec'.EXT); if ( ! class_exists('CI_DB')) { eval('class CI_DB extends CI_DB_active_record { }'); } } else { if ( ! class_exists('CI_DB')) { eval('class CI_DB extends CI_DB_driver { }'); } } require_once(BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver'.EXT); // Instantiate the DB adapter $driver = 'CI_DB_'.$params['dbdriver'].'_driver'; $DB =& new $driver($params); if ($DB->autoinit == TRUE) { $DB->initialize(); } return $DB; } ?>