Ojs\JournalBundle\Controller\JournalUserController::addUserAction PHP Метод

    public function addUserAction(Request $request)
    {
        $journal = $this->get('ojs.journal_service')->getSelectedJournal();
        $eventDispatcher = $this->get('event_dispatcher');
        if (!$this->isGranted('CREATE', $journal, 'userRole')) {
            throw new AccessDeniedException("You are not authorized for this page!");
        }
        $entity = new JournalUser();
        $form = $this->createAddForm($entity, $journal->getId());
        $form->handleRequest($request);
        if ($form->isValid()) {
            $em = $this->getDoctrine()->getManager();
            $entity->setJournal($journal);
            $event = new JournalItemEvent($entity);
            $eventDispatcher->dispatch(JournalUserEvents::PRE_ADD_JOURNAL, $event);
            /** @var JournalUser $entity */
            $entity = $event->getItem();
            /** @var JournalUser $existingJournalUser */
            $existingJournalUser = $em->getRepository('OjsJournalBundle:JournalUser')->findOneBy(['user' => $entity->getUser()]);
            if ($existingJournalUser) {
                if ($existingJournalUser->getRoles()) {
                    foreach ($entity->getRoles() as $role) {
                        if (!$existingJournalUser->getRoles()->contains($role)) {
                            $existingJournalUser->getRoles()->add($role);
                        }
                    }
                } else {
                    $existingJournalUser->setRoles($entity->getRoles());
                }
                $em->persist($existingJournalUser);
            } else {
                $em->persist($entity);
            }
            $em->flush();
            $event = new JournalItemEvent($entity);
            $eventDispatcher->dispatch(JournalUserEvents::POST_ADD_JOURNAL, $event);
            if ($event->getResponse()) {
                return $event->getResponse();
            }
            $this->successFlashBag('successful.create');
            return $this->redirectToRoute('ojs_journal_user_index', ['journalId' => $journal->getId()]);
        }
        return $this->render('OjsJournalBundle:JournalUser:add.html.twig', array('entity' => $entity, 'form' => $form->createView()));
    }