86 lines
2.6 KiB
Go
86 lines
2.6 KiB
Go
package mysqldao
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import (
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"context"
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"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/global"
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"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/internal/mysqlmodel"
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"gorm.io/gorm"
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)
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// RefundDao 退款单数据访问
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type RefundDao struct {
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db *gorm.DB
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}
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// NewRefundDao 创建退款 DAO
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func NewRefundDao() *RefundDao {
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return &RefundDao{db: global.MysqlEngine}
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}
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// RefundListParams 退款单分页列表筛选参数。
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type RefundListParams struct {
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Status int8 // 退款状态（WithStatus 为 true 时生效）
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WithStatus bool // 是否按状态筛选（退款状态 0=待处理 是合法值，需显式区分「不过滤」）
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OrderNo string // 订单号（精确）
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Page int
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Size int
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}
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// RefundList 分页查询退款单
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func (d *RefundDao) RefundList(ctx context.Context, p RefundListParams) ([]mysqlmodel.RefundFlowLog, int64, error) {
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ctx, span := global.Tracer.Start(ctx, "mysqldao.RefundList")
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defer span.End()
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var list []mysqlmodel.RefundFlowLog
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var total int64
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q := d.db.WithContext(ctx).Model(&mysqlmodel.RefundFlowLog{})
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if p.WithStatus {
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q = q.Where("status = ?", p.Status)
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}
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if p.OrderNo != "" {
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q = q.Where("order_no = ?", p.OrderNo)
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}
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if err := q.Count(&total).Error; err != nil {
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span.RecordError(err)
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return nil, 0, err
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}
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if err := q.Offset((p.Page - 1) * p.Size).Limit(p.Size).Order("id DESC").Find(&list).Error; err != nil {
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span.RecordError(err)
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return nil, 0, err
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}
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return list, total, nil
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}
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// RefundGetByRefundNo 按退款单号查询
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func (d *RefundDao) RefundGetByRefundNo(ctx context.Context, refundNo string) (*mysqlmodel.RefundFlowLog, error) {
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ctx, span := global.Tracer.Start(ctx, "mysqldao.RefundGetByRefundNo")
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defer span.End()
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var refund mysqlmodel.RefundFlowLog
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if err := d.db.WithContext(ctx).Where("refund_no = ?", refundNo).First(&refund).Error; err != nil {
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span.RecordError(err)
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return nil, err
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}
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return &refund, nil
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}
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// RefundTransition 条件更新退款状态（仅 from 状态可流转到 to，行锁防并发重复审核）。
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func (d *RefundDao) RefundTransition(ctx context.Context, refundNo string, from, to int8, failReason string) (bool, error) {
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ctx, span := global.Tracer.Start(ctx, "mysqldao.RefundTransition")
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defer span.End()
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updates := map[string]any{"status": to}
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if failReason != "" {
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updates["fail_reason"] = failReason
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}
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res := d.db.WithContext(ctx).Model(&mysqlmodel.RefundFlowLog{}).
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Where("refund_no = ? AND status = ?", refundNo, from).
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Updates(updates)
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if res.Error != nil {
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span.RecordError(res.Error)
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return false, res.Error
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}
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return res.RowsAffected > 0, nil
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}
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