//  public async Task<PageDTO<FriendLinkDTO>> GetFriendLinkByPageAsync(int pageSize, int pageIndex, bool isShow)
        // {
        //     return await Task.Run(() =>
        //     {
        //         Expression<Func<FriendLinkEntity, bool>> expression = a => true;
        //         // 条件拼接
        //         if (isShow)
        //         {
        //             expression = expression.And(a => a.isShow == isShow);
        //         }
        //         // 分页获取数据
        //         var friendLink = FriendLinkRepository.GetModelsByPage(pageSize, pageIndex, false, a => a.createDate,
        //             expression, out var total).ToList();
        //         // 映射结果
        //         var friendLinkDTOList = Mapper.Map<List<FriendLinkDTO>>(friendLink);
        //         // 返回结果
        //         return new PageDTO<FriendLinkDTO>(pageIndex, pageSize, total, friendLinkDTOList);
        //     });
        // }

        /// <summary>
        /// 获取所有友情链接
        /// </summary>
        /// <returns></returns>
        public async Task <List <FriendLinkDTO> > GetAllFriendLinksAsync()
        {
            return(await Task.Run(() =>
            {
                var friendLinks = FriendLinkRepository.GetModels(a => a.id != 0);
                return Mapper.Map <List <FriendLinkDTO> >(friendLinks.ToList());
            }));
        }
 /// <summary>
 /// 根据禁用显示友情链接
 /// </summary>
 /// <param name="isShow"></param>
 /// <returns></returns>
 public async Task <List <FriendLinkDTO> > GetFriendLinksByIsShowAsync(bool isShow)
 {
     return(await Task.Run(() =>
     {
         var friendLinks = FriendLinkRepository.GetModels(a => a.id != 0);
         var friendLinkList = isShow
             ? friendLinks.Where(a => a.isShow).ToList()
             : friendLinks.Where(a => !a.isShow).ToList();
         return Mapper.Map <List <FriendLinkDTO> >(friendLinkList);
     }));
 }
        /// <summary>
        /// 根据id删除友情链接
        /// </summary>
        /// <param name="tId"></param>
        /// <returns></returns>
        public async Task <bool> RemoveEntityAsync(int tId)
        {
            var friendLink = await FriendLinkRepository.GetSingleModelAsync(a => a.id == tId);

            return(await FriendLinkRepository.DeleteAsync(friendLink));
        }