162 lines
4.1 KiB
PHP
162 lines
4.1 KiB
PHP
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
|
|
/**
|
|
* CodeIgniter
|
|
*
|
|
* An open source application development framework for PHP 5.1.6 or newer
|
|
*
|
|
* @package CodeIgniter
|
|
* @author ExpressionEngine Dev Team
|
|
* @copyright Copyright (c) 2008 - 2011, 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/
|
|
* @param string
|
|
* @param bool Determines if active record should be used or not
|
|
*/
|
|
function &DB($params = '', $active_record_override = NULL)
|
|
{
|
|
// Load the DB config file if a DSN string wasn't passed
|
|
if (is_string($params) AND strpos($params, '://') === FALSE)
|
|
{
|
|
// Is the config file in the environment folder?
|
|
if ( ! defined('ENVIRONMENT') OR ! file_exists($file_path = APPPATH.'config/'.ENVIRONMENT.'/database.php'))
|
|
{
|
|
if ( ! file_exists($file_path = APPPATH.'config/database.php'))
|
|
{
|
|
show_error('The configuration file database.php does not exist.');
|
|
}
|
|
}
|
|
|
|
include($file_path);
|
|
|
|
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 !== NULL)
|
|
{
|
|
$active_record = $active_record_override;
|
|
}
|
|
|
|
require_once(BASEPATH.'database/DB_driver.php');
|
|
|
|
if ( ! isset($active_record) OR $active_record == TRUE)
|
|
{
|
|
require_once(BASEPATH.'database/DB_active_rec.php');
|
|
|
|
if ( ! class_exists('CI_DB'))
|
|
{
|
|
eval('class CI_DB extends CI_DB_active_record { }');
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( ! class_exists('CI_DB'))
|
|
{
|
|
eval('class CI_DB extends CI_DB_driver { }');
|
|
}
|
|
}
|
|
|
|
require_once(BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver.php');
|
|
|
|
// Instantiate the DB adapter
|
|
$driver = 'CI_DB_'.$params['dbdriver'].'_driver';
|
|
$DB = new $driver($params);
|
|
|
|
if ($DB->autoinit == TRUE)
|
|
{
|
|
$DB->initialize();
|
|
}
|
|
|
|
if (isset($params['stricton']) && $params['stricton'] == TRUE)
|
|
{
|
|
$DB->query('SET SESSION sql_mode="STRICT_ALL_TABLES"');
|
|
}
|
|
|
|
return $DB;
|
|
}
|
|
|
|
|
|
|
|
/* End of file DB.php */
|
|
/* Location: ./system/database/DB.php */ |