2025-10-10 07:13:36 -07:00

56 lines
1.5 KiB
Go

package coupon
import (
"context"
"github.com/redis/go-redis/v9"
"gorm.io/gorm"
)
type customCouponLogicModel interface {
UpdateCount(ctx context.Context, code string) error
QueryCouponListByPage(ctx context.Context, page, size int, subscribe int64, search string) (total int64, list []*Coupon, err error)
BatchDelete(ctx context.Context, ids []int64) error
}
// NewModel returns a model for the database table.
func NewModel(conn *gorm.DB, c *redis.Client) Model {
return &customCouponModel{
defaultCouponModel: newCouponModel(conn, c),
}
}
// QueryCouponListByPage query coupon list by page
func (m *customCouponModel) QueryCouponListByPage(ctx context.Context, page, size int, subscribe int64, search string) (total int64, list []*Coupon, err error) {
err = m.QueryNoCacheCtx(ctx, &list, func(conn *gorm.DB, v interface{}) error {
db := conn.Model(&Coupon{})
if subscribe != 0 {
db = db.Where("FIND_IN_SET(?, subscribe)", subscribe)
}
if search != "" {
db = db.Where("name like ? or code like ?", "%"+search+"%", "%"+search+"%")
}
return db.Count(&total).Limit(size).Offset((page - 1) * size).Find(v).Error
})
return total, list, err
}
func (m *customCouponModel) BatchDelete(ctx context.Context, ids []int64) error {
var err error
for _, id := range ids {
if err = m.Delete(ctx, id); err != nil {
return err
}
}
return nil
}
func (m *customCouponModel) UpdateCount(ctx context.Context, code string) error {
data, err := m.FindOneByCode(ctx, code)
if err != nil {
return err
}
data.UsedCount++
return m.Update(ctx, data)
}