新增 检测优惠卷是否全部发放完毕

api/dao/coupon.go

@@ -80,3 +80,12 @@ func (r *CouponDao) Dec(tx *gorm.DB, couponId int64, field string, numeral int)
 	}
 	return nil
 }
+
+// EditCouponById 修改
+func (r *CouponDao) EditCouponById(tx *gorm.DB, couponId int64, data interface{}) error {
+	err := tx.Model(&model.Coupon{}).Where("coupon_id = ?", couponId).Updates(data).Error
+	if err != nil {
+		return err
+	}
+	return nil
+}

api/service/v1/Coupon.go

@@ -180,6 +180,17 @@ func (r *CouponService) ReceiveCoupon(req requestsV1.ReceiveCoupon) (g *dtoV1.Re
 		return nil, errors.New("发放失败")
 	}
 
+	// 检测优惠卷是否全部发放完毕
+	if (req.Quantity - remainingQuantity) == 0 {
+		maps := make(map[string]interface{})
+		maps["coupon_status"] = 3
+		err := couponDao.EditCouponById(tx, coupon.CouponId, maps)
+		if err != nil {
+			tx.Rollback()
+			return nil, errors.New("发放失败")
+		}
+	}
+
 	for i := 0; i < req.Quantity; i++ {
 		// 添加用户优惠卷表
 		UserCouponModel := &model.UserCoupon{