/// <summary> /// 获得一个订单使用的优惠券数量 /// </summary> /// <param name="orderId"></param> /// <returns></returns> public int GetOrderUsedPromtionCodeNumByOrderId(int orderId) { ParameterChecker.CheckNull(orderId, "OrderId"); return(dbManager.Execute(connection => DalPromotionJob.GetOrderUsedPromtionCodeNumByOrderId(connection, orderId))); }