public static function setModel($module, $model, $conn) { $modelName = ucfirst($model); if (file_exists(APP . DS . 'modules' . DS . $module . DS . 'models' . DS . $modelName . '.php')) { self::$_model = call_user_func_array(array($modelName, 'getInstance'), array($conn['host'], $conn['user'], $conn['password'], $conn['database'])); } }