public static List <LotteryCouponModel> GetLotteryCoupon(string productGroupId)
        {
            var data   = DalGroupBuyingProductGroupConfig.GetLotteryCouponList(productGroupId);
            var result = new List <LotteryCouponModel>();

            if (data.Any())
            {
                foreach (var item in data)
                {
                    var resultItem = GetCouponDetail(item.Item1, productGroupId);
                    if (resultItem != null)
                    {
                        resultItem.Creator = item.Item2;
                        result.Add(resultItem);
                    }
                }
            }
            return(result);
        }