/**
  * @Route("api/v1/books/add")
  * @param Request $request
  */
 public function addAction(Request $request)
 {
     if (!$this->authentication($request)) {
         $messages = array("message" => "Autentication error, use right api key");
         return $this->jsonResponse($messages);
     }
     $messages = array();
     if ($request->getMethod() === "POST") {
         $bookParametrBag = $request->request;
         $book = Book::createBook($bookParametrBag);
         if (is_array($book)) {
             $messages = $book;
         }
         if (count($messages) === 0) {
             $entityManager = $this->getDoctrine()->getManager();
             $entityManager = $this->getDoctrine()->getManager();
             $entityManager->persist($book);
             $entityManager->flush();
             $messages["message"] = "done";
         } else {
             $messages["message"] = "error";
         }
     } else {
         $messages["message"] = "error";
         $messages["method_error"] = "You should use POST method";
     }
     return $this->jsonResponse($messages);
 }