Ojs\JournalBundle\Controller\ArticleController::createAction PHP Method

    public function createAction(Request $request)
    {
        $journal = $this->get('ojs.journal_service')->getSelectedJournal();
        if (!$this->isGranted('CREATE', $journal, 'articles')) {
            throw new AccessDeniedException("You not authorized for this page!");
        }
        $dispatcher = $this->get('event_dispatcher');
        $entity = new Article();
        $entity = $entity->setJournal($journal);
        $form = $this->createCreateForm($entity, $journal);
        $form->handleRequest($request);
        $em = $this->getDoctrine()->getManager();
        if ($form->isSubmitted()) {
            $authorOrder = 1;
            $citationOrder = 1;
            foreach ($entity->getArticleAuthors() as $author) {
                $author->setAuthorOrder($authorOrder++);
                $author->setArticle($entity);
            }
            foreach ($entity->getCitations() as $citation) {
                $citation->setOrderNum($citationOrder++);
            }
            foreach ($entity->getArticleFiles() as $file) {
                $file->setVersion(0);
                $file->setArticle($entity);
            }
            $entity->setStatus(ArticleStatuses::STATUS_PUBLISH_READY);
            $entity->setSubmissionDate(new \DateTime());
        }
        $violations = $this->get('validator')->validate($entity, null, ['submission']);
        if ($violations->count() == 0) {
            $entity->setCurrentLocale($request->getDefaultLocale());
            $entity->setStatus(ArticleStatuses::STATUS_PUBLISH_READY);
            $event = new JournalItemEvent($entity);
            $dispatcher->dispatch(ArticleEvents::PRE_CREATE, $event);
            $em->persist($event->getItem());
            $em->flush();
            $this->successFlashBag('article.successful.create');
            $event = new JournalItemEvent($event->getItem());
            $dispatcher->dispatch(ArticleEvents::POST_CREATE, $event);
            if ($event->getResponse()) {
                return $event->getResponse();
            }
            return $this->redirectToRoute('ojs_journal_article_show', ['id' => $event->getItem()->getId(), 'journalId' => $journal->getId()]);
        }
        $submissionSetting = $em->getRepository('OjsJournalBundle:SubmissionSetting')->findOneBy([]);
        $abstractTemplates = [];
        if ($submissionSetting) {
            /** @var SubmissionSettingTranslation $translation */
            foreach ($submissionSetting->getTranslations() as $translation) {
                $abstractTemplates[$translation->getLocale()] = $translation->getSubmissionAbstractTemplate();
            }
        }
        $data = ['entity' => $entity, 'form' => $form->createView(), 'abstractTemplates' => $abstractTemplates];
        return $this->render('OjsJournalBundle:Article:new.html.twig', $data);
    }