/**
  * {@inheritdoc}
  */
 public function addAction(Request $request)
 {
     if (!$request->isXmlHttpRequest()) {
         return $this->redirectToAction('index');
     }
     $name = $request->request->get('name');
     $resource = $this->manager->createGroup($name);
     return $this->jsonResponse(['id' => $resource->getId()]);
 }