public BasePageList<CarCollectionViewListModel> GetCollectionList(CarCollectionQueryModel query)
{
const string spName = "sp_common_pager";
const string tableName = @"car_collection as b
inner join car_info as a on a.innerid=b.carid
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";
var fields = "a.innerid,a.custid,a.pic_url,a.price,a.buyprice,a.dealprice,a.buytime,a.status,a.mileage,a.register_date," +
"c1.brandname as brand_name,c2.seriesname as series_name,c3.modelname as model_name,ct.cityname,b.remark,b.createdtime as Collectiontime," +
$" (select count(1) from cust_relations where userid='{query.Custid}' and friendsid=a.custid) as isfriend";
var orderField = string.IsNullOrWhiteSpace(query.Order) ? "b.createdtime desc" : query.Order;
#region 查询条件
var sqlWhere = $"b.custid='{query.Custid}' and a.status<>0";
#endregion
var model = new PagingModel(spName, tableName, fields, orderField, sqlWhere.ToString(), query.PageSize, query.PageIndex);
var list = Helper.ExecutePaging<CarCollectionViewListModel>(model, query.Echo);
return list;
}