Current Directory: /home/astoriaah/www/old15/administrator/components/com_akeeba/engine/Core
Viewing File: /home/astoriaah/www/old15/administrator/components/com_akeeba/engine/Core/Database.php
<?php
/**
* Akeeba Engine
* The modular PHP5 site backup engine
* @copyright Copyright (c)2006-2015 Nicholas K. Dionysopoulos
* @license GNU GPL version 3 or, at your option, any later version
* @package akeebaengine
*
*/
namespace Akeeba\Engine\Core;
// Protection against direct access
defined('AKEEBAENGINE') or die();
use Akeeba\Engine\Base\Object;
use Akeeba\Engine\Driver\Base as DriverBase;
use Akeeba\Engine\Platform;
/**
* A utility class to return a database connection object
*/
class Database extends Object
{
/**
* Returns a database connection object. It caches the created objects for future use.
*
* @param array $options Options to use when instantiating the database connection
*
* @return DriverBase
*/
public static function &getDatabase($options, $unset = false)
{
static $instances;
if (!isset($instances))
{
$instances = array();
}
$signature = serialize($options);
if ($unset)
{
if (!empty($instances[$signature]))
{
$db = $instances[$signature];
$db = null;
unset($instances[$signature]);
}
$null = null;
return $null;
}
if (empty($instances[$signature]))
{
$driver = array_key_exists('driver', $options) ? $options['driver'] : '';
$select = array_key_exists('select', $options) ? $options['select'] : true;
$database = array_key_exists('database', $options) ? $options['database'] : null;
$driver = preg_replace('/[^A-Z0-9_\\\.-]/i', '', $driver);
if (empty($driver))
{
// No driver specified; try to guess
$default_signature = serialize(Platform::getInstance()->get_platform_database_options());
if ($signature == $default_signature)
{
$driver = Platform::getInstance()->get_default_database_driver(true);
}
else
{
$driver = Platform::getInstance()->get_default_database_driver(false);
}
}
else
{
// Make sure a full driver name was given
if ((substr($driver, 0, 7) != '\\Akeeba') && substr($driver, 0, 7) != 'Akeeba\\')
{
$driver = '\\Akeeba\\Engine\\Driver\\' . ucfirst($driver);
}
}
$instances[$signature] = new $driver($options);
}
return $instances[$signature];
}
public static function unsetDatabase($options)
{
self::getDatabase($options, true);
}
}