/**
* Factory pattern to load needed Classes
* @param string $filename name of file without extension
* @param int $id optional ID of row we want to select
* @return \Database This object
*/
public static function factory($filename, $id = NULL)
{
Data::newInstance();
$db = new Database();
$db->_data = new Data();
$db->set_informations($filename, $id);
$db->xml = simplexml_load_file($db->file);
return $db;
}
