/**
  * @Route("/add-user", name="subscription_add_user")
  *
  * @param Request $request
  * @return \Symfony\Component\HttpFoundation\Response
  */
 public function addUserAction(Request $request)
 {
     $subscription = new Subscription();
     $subscription->setType(Reference::USER);
     $form = $this->getEditForm($subscription);
     if ($this->processForm($form, $request)) {
         return $this->redirect($this->generateUrl('subscription_show', ['id' => $subscription->getId()]));
     }
     return $this->render('subscription/edit.html.twig', ['subscription' => $subscription, 'form' => $form->createView()]);
 }