/**
  * 处理添加好友
  *
  * @param AddUsersRequest $request
  * @author yangyifan <*****@*****.**>
  */
 public function postAddFriend(AddUsersRequest $request)
 {
     $user_id = intval($request->get('id'));
     //搜索内容不能是自己
     if ($user_id == is_user_login()) {
         $this->response(400, trans('response.can_not_add_their_own_friends'));
     }
     FriendsModel::addFriend($user_id, trim($request->get('contents')));
     $this->response(200, trans('response.send_add_user_message_success'));
 }