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

        public BasePageList<CarInfoListViewModel> GetAllCarPageList(CarQueryModel query)
        {
            const string spName = "sp_common_pager";
            const string tableName = @"car_info as a
                                    left join auction_carinfo as b on b.carid=a.innerid
                                    left join base_carbrand as c1 on a.brand_id=c1.innerid
                                    left join base_carseries as c2 on a.series_id=c2.innerid
                                    left join base_carmodel as c3 on a.model_id=c3.innerid
                                    left join base_city as ct on a.cityid=ct.innerid ";
            const string fields = "a.innerid,a.carno,a.custid,a.pic_url,a.price,a.buyprice,a.dealprice,a.buytime,a.status,a.mileage,a.register_date,a.seller_type as type,c1.brandname as brand_name,c2.seriesname as series_name,c3.modelname as model_name,ct.cityname,a.istop,b.status as auditstatus,(select count(1) from car_tipoff where carid=a.innerid and status=1) as toNum";
            var orderField = string.IsNullOrWhiteSpace(query.Order) ? "a.refreshtime desc" : query.Order;

            #region 查询条件
            var sqlWhere = new StringBuilder("1=1 and a.seller_type<>3");   //seller_type=3 为神秘车源

            if (query.status != null)
            {
                sqlWhere.Append($" and a.status={query.status}");
            }

            if (!string.IsNullOrWhiteSpace(query.custid))
            {
                sqlWhere.Append($" and a.custid='{query.custid}'");
            }

            if (!string.IsNullOrWhiteSpace(query.carno))
            {
                sqlWhere.Append($" and a.carno='{query.carno}'");
            }

            //省份
            if (query.provid != null)
            {
                sqlWhere.Append($" and a.provid={query.provid}");
            }

            //城市
            if (query.cityid != null)
            {
                sqlWhere.Append($" and a.cityid={query.cityid}");
            }

            //品牌
            if (query.brand_id != null && query.brand_id != 0)
            {
                sqlWhere.Append($" and a.brand_id={query.brand_id}");
            }

            //车系
            if (query.series_id != null && query.series_id != 0)
            {
                sqlWhere.Append($" and a.series_id={query.series_id}");
            }

            //车型
            if (query.model_id != null && query.model_id != 0)
            {
                sqlWhere.Append($" and a.model_id={query.model_id}");
            }

            //收购价大于..
            if (query.minbuyprice.HasValue)
            {
                sqlWhere.Append($" and a.buyprice>={query.minbuyprice}");
            }

            //收购价小于..
            if (query.maxbuyprice.HasValue)
            {
                sqlWhere.Append($" and a.buyprice<={query.maxbuyprice}");
            }

            if (!string.IsNullOrWhiteSpace(query.keyword) && query.model_id == null)
            {
                sqlWhere.Append($" and (c1.brandname like '%{query.keyword}%' or c2.seriesname like '%{query.keyword}%')");
            }

            //用户ID
            if (!string.IsNullOrWhiteSpace(query.userid))
            {
                sqlWhere.Append($" and cityid in (select cityid from sys_user_city where userid='{query.userid}')");
            }

            //有举报的
            if (query.tipoffonum != null)
            {
                sqlWhere.Append(" and (select count(1) from car_tipoff where carid=a.innerid and status=1)>0");
            }

            #endregion

            var model = new PagingModel(spName, tableName, fields, orderField, sqlWhere.ToString(), query.PageSize, query.PageIndex);
            var list = Helper.ExecutePaging<CarInfoListViewModel>(model, query.Echo);
            return list;
        }