/**
  * @inheritdoc
  */
 public function execute(Request $request, DataSourceInterface $resource, $identifier)
 {
     if (!$resource->delete(intval($identifier))) {
         throw new NotFoundHttpException();
     }
     return ActionResult::simple(200, ['status' => 'success']);
 }
 /**
  * @inheritdoc
  */
 public function execute(Request $request, DataSourceInterface $resource)
 {
     return ActionResult::simple(200, ['count' => $resource->count()]);
 }