Newscoop\GimmeBundle\Controller\TopicsController::processForm PHP Méthode

    private function processForm($request, $topicId = null, $articleNumber = null, $languageCode = null)
    {
        $em = $this->get('em');
        $topic = new Topic();
        $statusCode = 201;
        if ($topicId) {
            $topic = $em->getRepository('Newscoop\\NewscoopBundle\\Entity\\Topic')->findOneById($topicId);
            $statusCode = 200;
            if (is_null($topic)) {
                throw new NotFoundHttpException("Topic with ID: '" . $topicId . "' was not found");
            }
        }
        $article = null;
        if (!is_null($articleNumber) && !is_null($languageCode)) {
            $article = $em->getRepository('Newscoop\\Entity\\Article')->getArticle($articleNumber, $languageCode)->getOneOrNullResult();
            if (!$article) {
                throw new NotFoundHttpException('Article with number:"' . $articleNumber . '" and language: "' . $languageCode . '" was not found.');
            }
        }
        $form = $this->get('form.factory')->create(new TopicType(), $topic);
        $form->handleRequest($request);
        if ($form->isValid()) {
            if ($article) {
                $topic->addArticleTopic($article);
            }
            $locale = null;
            if (!$topic->getTranslatableLocale()) {
                $locale = $request->getLocale();
            }
            $topicService = $this->get('newscoop_newscoop.topic_service');
            $topicService->saveNewTopic($topic, $locale);
            $response = new Response();
            $response->setStatusCode($statusCode);
            $response->headers->set('X-Location', $this->generateUrl('newscoop_gimme_topics_gettopicbyid', array('id' => $topic->getId()), true));
            return $response;
        }
        return $form;
    }