/**
  * @todo: 删除评论
  * @author Saki <*****@*****.**>
  * @date 2014-12-26 下午5:45:28
  * @version V1.0
  */
 public function deleteComment($id, $aid)
 {
     $model = D('Admin/ArticleComment');
     try {
         $map['id'] = $id;
         $map['_logic'] = 'OR';
         $map['pid'] = $id;
         $count = $model->where($map)->count();
         $isdelete = $model->where($map)->delete();
         if ($isdelete) {
             //评论数-n
             $article_list_model = new \Admin\Model\ArticleListModel();
             $article_list_model->minusComment($aid, $count);
         }
         $errcode = $isdelete ? 0 : 500;
         $msg = $isdelete ? '删除成功' : '删除失败';
     } catch (Exception $e) {
         $errcode = 500;
         $msg = $e->getMessage();
     }
     $res['errcode'] = $errcode;
     $res['msg'] = $msg;
     return $res;
 }