/**
  * 즐겨찾기 등록, 삭제
  *
  * @param string $menuUrl first segment
  * @param string $id      document id
  * @return \Xpressengine\Presenter\RendererInterface
  */
 public function favorite($menuUrl, $id)
 {
     if (Auth::check() === false) {
         throw new AccessDeniedHttpException();
     }
     $board = $this->handler->getModel($this->config)->find($id);
     $userId = Auth::user()->getId();
     $favorite = false;
     if ($this->handler->hasFavorite($board->id, $userId) === false) {
         $this->handler->addFavorite($board->id, $userId);
         $favorite = true;
     } else {
         $this->handler->removeFavorite($board->id, $userId);
     }
     return XePresenter::makeApi(['favorite' => $favorite]);
 }