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| 0,0 → 1,146 |
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| <?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) 2008, 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]; |
| } |
| elseif (is_string($params)) |
| { |
| |
| /* parse the URL from the DSN string |
| * Database settings can be passed as discreet |
| * parameters or as a data source name in the first |
| * parameter. DSNs must have this prototype: |
| * $dsn = 'driver://username:password@hostname/database'; |
| */ |
| |
| if (($dns = @parse_url($params)) === FALSE) |
| { |
| show_error('Invalid DB Connection String'); |
| } |
| |
| $params = array( |
| 'dbdriver' => $dns['scheme'], |
| 'hostname' => (isset($dns['host'])) ? rawurldecode($dns['host']) : '', |
| 'username' => (isset($dns['user'])) ? rawurldecode($dns['user']) : '', |
| 'password' => (isset($dns['pass'])) ? rawurldecode($dns['pass']) : '', |
| 'database' => (isset($dns['path'])) ? rawurldecode(substr($dns['path'], 1)) : '' |
| ); |
| |
| // were additional config items set? |
| if (isset($dns['query'])) |
| { |
| parse_str($dns['query'], $extra); |
| |
| foreach($extra as $key => $val) |
| { |
| // booleans please |
| if (strtoupper($val) == "TRUE") |
| { |
| $val = TRUE; |
| } |
| elseif (strtoupper($val) == "FALSE") |
| { |
| $val = FALSE; |
| } |
| |
| $params[$key] = $val; |
| } |
| } |
| } |
| |
| // No DB specified yet? Beat them senseless... |
| if ( ! isset($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; |
| } |
| |
| |
| |
| /* End of file DB.php */ |
| /* Location: ./system/database/DB.php */ |