/** * Finds the Role model based on its primary key value. * If the model is not found, a 404 HTTP exception will be thrown. * * @param string $id * @return Role the loaded model * @throws NotFoundHttpException if the model cannot be found */ protected function findModel($id) { if (($model = Role::findOne($id)) !== null) { return $model; } else { throw new NotFoundHttpException(HLib::t('messages', 'The requested page does not exist')); } }