CCN.Modules.Car.DataAccess.CarDataAccess.DelCarPictureList C# (CSharp) Method

        public int DelCarPictureList(List<string> idList, string carid)
        {
            const string sqlSCarPic = "select innerid, carid, typeid, path, sort, createdtime from car_picture where carid=@carid order by sort;";//查询车辆图片
            const string sqlDPic = @"delete from car_picture where innerid=@innerid;";
            const string sqlUCover = @"update car_info set pic_url=(select path from car_picture where carid=@carid order by sort limit 1) where innerid=@carid;";

            using (var conn = Helper.GetConnection())
            {
                //获取车辆图片
                var picedList = conn.Query<CarPictureModel>(sqlSCarPic, new { carid }).ToList();
                var number = picedList.Count - idList.Count;
                if (number < 3)
                {
                    //图片数量控制在>=3 and <=9
                    return 402;
                }

                var tran = conn.BeginTransaction();
                try
                {
                    //标示是否修改封面
                    var isUCover = false;
                    //获取封面图片
                    var coverid = picedList.First().Innerid;
                    foreach (var id in idList)
                    {
                        if (id.Equals(coverid))
                        {
                            isUCover = true;
                        }
                        conn.Execute(sqlDPic, new { innerid = id }, tran);
                    }

                    if (isUCover)
                    {
                        conn.Execute(sqlUCover, new { carid }, tran);
                    }

                    tran.Commit();
                    return 1;
                }
                catch (Exception ex)
                {
                    tran.Rollback();
                    LoggerFactories.CreateLogger().Write("批量删除图片异常：" + ex.Message, TraceEventType.Warning);
                    return 0;
                }
            }
        }