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重构优惠券表结构与功能

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This commit is contained in:
luorijun
2026-04-09 14:58:20 +08:00
parent 3040b10eed
commit 7d7b979b66
16 changed files with 1012 additions and 199 deletions
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109
web/services/coupon.go
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@@ -3,6 +3,7 @@ package services
import (
"errors"
"fmt"
"platform/pkg/u"
"platform/web/core"
m "platform/web/models"
q "platform/web/queries"
@@ -27,36 +28,32 @@ func (s *couponService) Page(req *core.PageReq) (result []*m.Coupon, count int64
func (s *couponService) Create(data CreateCouponData) error {
return q.Coupon.Create(&m.Coupon{
UserID: data.UserID,
Code: data.Code,
Remark: data.Remark,
Amount: data.Amount,
MinAmount: data.MinAmount,
Status: m.CouponStatusUnused,
ExpireAt: data.ExpireAt,
Name: data.Name,
Amount: data.Amount,
MinAmount: data.MinAmount,
Count: int32(u.Else(data.Count, 1)),
Status: u.Else(data.Status, m.CouponStatusEnabled),
ExpireType: u.Else(data.ExpireType, m.CouponExpireTypeNever),
ExpireAt: data.ExpireAt,
ExpireIn: data.ExpireIn,
})
}
type CreateCouponData struct {
UserID *int32 `json:"user_id"`
Code string `json:"code" validate:"required"`
Remark *string `json:"remark"`
Amount decimal.Decimal `json:"amount" validate:"required"`
MinAmount decimal.Decimal `json:"min_amount"`
ExpireAt *time.Time `json:"expire_at"`
Name string `json:"name" validate:"required"`
Amount decimal.Decimal `json:"amount" validate:"required"`
MinAmount decimal.Decimal `json:"min_amount"`
Count *int `json:"count"`
Status *m.CouponStatus `json:"status"`
ExpireType *m.CouponExpireType `json:"expire_type"`
ExpireAt *time.Time `json:"expire_at"`
ExpireIn *int `json:"expire_in"`
}
func (s *couponService) Update(data UpdateCouponData) error {
do := make([]field.AssignExpr, 0)
if data.UserID != nil {
do = append(do, q.Coupon.UserID.Value(*data.UserID))
}
if data.Code != nil {
do = append(do, q.Coupon.Code.Value(*data.Code))
}
if data.Remark != nil {
do = append(do, q.Coupon.Remark.Value(*data.Remark))
if data.Name != nil {
do = append(do, q.Coupon.Name.Value(*data.Name))
}
if data.Amount != nil {
do = append(do, q.Coupon.Amount.Value(*data.Amount))
@@ -64,26 +61,36 @@ func (s *couponService) Update(data UpdateCouponData) error {
if data.MinAmount != nil {
do = append(do, q.Coupon.MinAmount.Value(*data.MinAmount))
}
if data.Count != nil {
do = append(do, q.Coupon.Count_.Value(int32(*data.Count)))
}
if data.Status != nil {
do = append(do, q.Coupon.Status.Value(int(*data.Status)))
}
if data.ExpireType != nil {
do = append(do, q.Coupon.ExpireType.Value(int(*data.ExpireType)))
}
if data.ExpireAt != nil {
do = append(do, q.Coupon.ExpireAt.Value(*data.ExpireAt))
}
if data.ExpireIn != nil {
do = append(do, q.Coupon.ExpireIn.Value(*data.ExpireIn))
}
_, err := q.Coupon.Where(q.Coupon.ID.Eq(data.ID)).UpdateSimple(do...)
return err
}
type UpdateCouponData struct {
ID int32 `json:"id" validate:"required"`
UserID *int32 `json:"user_id"`
Code *string `json:"code"`
Remark *string `json:"remark"`
Amount *decimal.Decimal `json:"amount"`
MinAmount *decimal.Decimal `json:"min_amount"`
Status *m.CouponStatus `json:"status"`
ExpireAt *time.Time `json:"expire_at"`
ID int32 `json:"id" validate:"required"`
Name *string `json:"name"`
Amount *decimal.Decimal `json:"amount"`
MinAmount *decimal.Decimal `json:"min_amount"`
Count *int `json:"count"`
Status *m.CouponStatus `json:"status"`
ExpireType *m.CouponExpireType `json:"expire_type"`
ExpireAt *time.Time `json:"expire_at"`
ExpireIn *int `json:"expire_in"`
}
func (s *couponService) Delete(id int32) error {
@@ -91,14 +98,14 @@ func (s *couponService) Delete(id int32) error {
return err
}
func (s *couponService) GetCouponAvailableByCode(code string, amount decimal.Decimal, uid *int32) (*m.Coupon, error) {
// GetUserCoupon 获取用户的指定优惠券
func (s *couponService) GetUserCoupon(uid int32, cuid int32, amount decimal.Decimal) (*m.CouponUser, error) {
// 获取优惠券
coupon, err := q.Coupon.Where(
q.Coupon.Code.Eq(code),
q.Coupon.Status.Eq(int(m.CouponStatusUnused)),
q.Coupon.
Where(q.Coupon.ExpireAt.Gt(time.Now())).
Or(q.Coupon.ExpireAt.IsNull()),
assigned, err := q.CouponUser.Joins(q.CouponUser.Coupon).Where(
q.CouponUser.ID.Eq(cuid),
q.CouponUser.UserID.Eq(uid),
q.CouponUser.Status.Eq(int(m.CouponUserStatusUnused)),
q.CouponUser.ExpireAt.Gt(time.Now()),
).Take()
if errors.Is(err, gorm.ErrRecordNotFound) {
return nil, core.NewBizErr("优惠券不存在或已失效")
@@ -108,32 +115,22 @@ func (s *couponService) GetCouponAvailableByCode(code string, amount decimal.Dec
}
// 检查最小使用额度
if amount.Cmp(coupon.MinAmount) < 0 {
return nil, core.NewBizErr(fmt.Sprintf("使用此优惠券的最小额度为 %s", coupon.MinAmount))
if amount.Cmp(assigned.Coupon.MinAmount) < 0 {
return nil, core.NewBizErr(fmt.Sprintf("使用此优惠券的最小额度为 %s", assigned.Coupon.MinAmount))
}
// 检查所属
if coupon.UserID != nil {
if uid == nil {
return nil, core.NewBizErr("检查优惠券所属用户失败")
}
if *coupon.UserID != *uid {
return nil, core.NewBizErr("优惠券不属于当前用户")
}
}
return coupon, nil
return assigned, nil
}
func (s *couponService) UseCoupon(q *q.Query, id int32) error {
_, err := q.Coupon.
func (s *couponService) UseCoupon(q *q.Query, cuid int32) error {
_, err := q.CouponUser.
Where(
q.Coupon.ID.Eq(id),
q.Coupon.Status.Eq(int(m.CouponStatusUnused)),
q.Coupon.ExpireAt.Gt(time.Now()),
q.CouponUser.ID.Eq(cuid),
q.CouponUser.Status.Eq(int(m.CouponUserStatusUnused)),
).
UpdateSimple(
q.Coupon.Status.Value(int(m.CouponStatusUsed)),
q.CouponUser.Status.Value(int(m.CouponUserStatusUsed)),
q.CouponUser.UsedAt.Value(time.Now()),
)
return err
}