public function addArticleNgAction()
 {
     $em = $this->getDoctrine()->getManager();
     $data = json_decode(file_get_contents("php://input"));
     $parameters = (object) $data;
     $transliterater = $this->get('renovate.transliterater');
     $article = Article::addArticle($em, $transliterater, $parameters);
     $response = new Response(json_encode(array("result" => $article->getInArray())));
     $response->headers->set('Content-Type', 'application/json');
     return $response;
 }