public function saveComment(Comment $comment)
 {
     $data = ['news_id' => $comment->getNewsId(), 'account_id' => $comment->getAccountId(), 'content' => $comment->getContent(), 'date_posted' => $comment->getDatePosted()];
     $id = $comment->getid();
     if ($id == 0) {
         $this->tableGateway->insert($data);
     } else {
         if ($this->getComment($id)) {
             $this->tableGateway->update($data, ['id' => $id]);
         } else {
             throw new \Exception('Comment id does not exist');
         }
     }
 }
 public function detailAction()
 {
     $name = '';
     $account_id = 0;
     $session = $session = new \Zend\Session\Container('user');
     if (isset($session) && !empty($session->name)) {
         $name = $session->name;
         $account_id = (int) $session->id;
     }
     $id = (int) $this->params()->fromRoute('id', 0);
     if (!$id) {
         return $this->redirect()->toRoute('news');
     }
     $comments = $this->getCommentTable()->getCommentsByNewsId($id);
     $form = new CommentForm();
     $form->get('news_id')->setValue($id);
     $form->get('account_id')->setValue($account_id);
     $request = $this->getRequest();
     if ($request->isPost()) {
         $comment = new Comment();
         $form->setInputFilter($comment->getInputFilter());
         $form->setData($request->getPost());
         if ($form->isValid()) {
             $comment->exchangeArray($form->getData());
             $this->getCommentTable()->saveComment($comment);
             return $this->redirect()->toRoute('news', ['action' => 'detail', 'id' => $id]);
         }
         return ['errors' => $form->getMessages(), 'accountName' => $name, 'news' => $this->getNewsTable()->getNews($id), 'comments' => $comments, 'form' => $form];
     }
     return ['accountName' => $name, 'news' => $this->getNewsTable()->getNews($id), 'comments' => $comments, 'form' => $form];
 }