新增 检测优惠卷是否全部发放完毕

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{