feat: 添加用户优惠券列表接口及相关数据结构

backend/app/services/coupon.go

@@ -5,12 +5,61 @@ import (
 	"time"
 
 	"quyun/v2/app/errorx"
+	coupon_dto "quyun/v2/app/http/v1/dto"
 	"quyun/v2/database/models"
+	"quyun/v2/pkg/consts"
+
+	"github.com/spf13/cast"
 )
 
 // @provider
 type coupon struct{}
 
+func (s *coupon) ListUserCoupons(ctx context.Context, status string) ([]coupon_dto.UserCouponItem, error) {
+	userID := ctx.Value(consts.CtxKeyUser)
+	if userID == nil {
+		return nil, errorx.ErrUnauthorized
+	}
+	uid := cast.ToInt64(userID)
+
+	tbl, q := models.UserCouponQuery.QueryContext(ctx)
+	q = q.Where(tbl.UserID.Eq(uid))
+	if status != "" {
+		q = q.Where(tbl.Status.Eq(status))
+	}
+
+	list, err := q.Order(tbl.CreatedAt.Desc()).Find()
+	if err != nil {
+		return nil, errorx.ErrDatabaseError.WithCause(err)
+	}
+
+	var res []coupon_dto.UserCouponItem
+	for _, v := range list {
+		c, _ := models.CouponQuery.WithContext(ctx).Where(models.CouponQuery.ID.Eq(v.CouponID)).First()
+
+		item := coupon_dto.UserCouponItem{
+			ID:       cast.ToString(v.ID),
+			CouponID: cast.ToString(v.CouponID),
+			Status:   v.Status,
+		}
+		if c != nil {
+			item.Title = c.Title
+			item.Description = c.Description
+			item.Type = c.Type
+			item.Value = c.Value
+			item.MinOrderAmount = c.MinOrderAmount
+			if !c.StartAt.IsZero() {
+				item.StartAt = c.StartAt.Format(time.RFC3339)
+			}
+			if !c.EndAt.IsZero() {
+				item.EndAt = c.EndAt.Format(time.RFC3339)
+			}
+		}
+		res = append(res, item)
+	}
+	return res, nil
+}
+
 // Validate checks if a coupon can be used for an order and returns the discount amount
 func (s *coupon) Validate(ctx context.Context, userID, userCouponID, amount int64) (int64, error) {
 	uc, err := models.UserCouponQuery.WithContext(ctx).Where(models.UserCouponQuery.ID.Eq(userCouponID)).First()

backend/app/services/coupon_test.go

@@ -108,4 +108,4 @@ func (s *CouponTestSuite) Test_CouponFlow() {
 			So(ucReload.OrderID, ShouldEqual, oid)
 		})
 	})
-}
+}

backend/app/services/order.go

@@ -157,7 +157,6 @@ func (s *order) Create(ctx context.Context, form *transaction_dto.OrderCreateFor
 
 		return nil
 	})
-
 	if err != nil {
 		if _, ok := err.(*errorx.AppError); ok {
 			return nil, err