修复店铺名不存在的问题

internal/model/dto/refund_dto.go

@@ -58,6 +58,7 @@ type RefundResponse struct {
 	OrderID               uint   `json:"order_id" description:"关联订单ID"`
 	PackageUsageID        *uint  `json:"package_usage_id,omitempty" description:"关联套餐使用记录ID"`
 	ShopID                *uint  `json:"shop_id,omitempty" description:"店铺ID"`
+	ShopName              string `json:"shop_name,omitempty" description:"店铺名称"`
 	ActualReceivedAmount  int64  `json:"actual_received_amount" description:"实收金额（分）"`
 	RequestedRefundAmount int64  `json:"requested_refund_amount" description:"申请退款金额（分）"`
 	ApprovedRefundAmount  *int64 `json:"approved_refund_amount,omitempty" description:"审批实际退款金额（分）"`

internal/model/refund.go

@@ -18,6 +18,7 @@ type RefundRequest struct {
 	OrderID        uint   `gorm:"column:order_id;index;not null;comment:关联订单ID" json:"order_id"`
 	PackageUsageID *uint  `gorm:"column:package_usage_id;comment:关联套餐使用记录ID（可选）" json:"package_usage_id,omitempty"`
 	ShopID         *uint  `gorm:"column:shop_id;index;comment:店铺ID（从订单获取，用于数据权限过滤）" json:"shop_id,omitempty"`
+	ShopName       string `gorm:"column:shop_name;->" json:"shop_name,omitempty"`
 
 	// 金额信息
 	ActualReceivedAmount  int64  `gorm:"column:actual_received_amount;type:bigint;not null;comment:实收金额（分）" json:"actual_received_amount"`

internal/service/refund/service.go

@@ -132,7 +132,7 @@ func (s *Service) List(ctx context.Context, req *dto.RefundListRequest) (*dto.Re
 	opts := &store.QueryOptions{
 		Page:     req.Page,
 		PageSize: req.PageSize,
-		OrderBy:  "created_at DESC",
+		OrderBy:  "tb_refund_request.created_at DESC",
 	}
 	if opts.Page == 0 {
 		opts.Page = 1
@@ -646,6 +646,7 @@ func buildRefundResponse(r *model.RefundRequest) *dto.RefundResponse {
 		OrderID:               r.OrderID,
 		PackageUsageID:        r.PackageUsageID,
 		ShopID:                r.ShopID,
+		ShopName:              r.ShopName,
 		ActualReceivedAmount:  r.ActualReceivedAmount,
 		RequestedRefundAmount: r.RequestedRefundAmount,
 		ApprovedRefundAmount:  r.ApprovedRefundAmount,

internal/store/postgres/refund_store.go

@@ -35,7 +35,11 @@ func (s *RefundStore) Create(ctx context.Context, req *model.RefundRequest) erro
 // GetByID 根据 ID 查询退款申请（含数据权限过滤）
 func (s *RefundStore) GetByID(ctx context.Context, id uint) (*model.RefundRequest, error) {
 	var req model.RefundRequest
-	query := s.db.WithContext(ctx).Where("id = ?", id)
+	query := s.db.WithContext(ctx).
+		Model(&model.RefundRequest{}).
+		Select("tb_refund_request.*, tb_shop.shop_name AS shop_name").
+		Joins("LEFT JOIN tb_shop ON tb_shop.id = tb_refund_request.shop_id AND tb_shop.deleted_at IS NULL").
+		Where("tb_refund_request.id = ?", id)
 	query = middleware.ApplyShopFilter(ctx, query)
 	if err := query.First(&req).Error; err != nil {
 		return nil, err
@@ -61,18 +65,21 @@ func (s *RefundStore) List(ctx context.Context, opts *store.QueryOptions, filter
 	var requests []*model.RefundRequest
 	var total int64
 
-	query := s.db.WithContext(ctx).Model(&model.RefundRequest{})
+	query := s.db.WithContext(ctx).
+		Model(&model.RefundRequest{}).
+		Select("tb_refund_request.*, tb_shop.shop_name AS shop_name").
+		Joins("LEFT JOIN tb_shop ON tb_shop.id = tb_refund_request.shop_id AND tb_shop.deleted_at IS NULL")
 	query = middleware.ApplyShopFilter(ctx, query)
 
 	if filters != nil {
 		if filters.Status != nil {
-			query = query.Where("status = ?", *filters.Status)
+			query = query.Where("tb_refund_request.status = ?", *filters.Status)
 		}
 		if filters.OrderID != nil {
-			query = query.Where("order_id = ?", *filters.OrderID)
+			query = query.Where("tb_refund_request.order_id = ?", *filters.OrderID)
 		}
 		if filters.ShopID != nil {
-			query = query.Where("shop_id = ?", *filters.ShopID)
+			query = query.Where("tb_refund_request.shop_id = ?", *filters.ShopID)
 		}
 	}
 
@@ -92,7 +99,7 @@ func (s *RefundStore) List(ctx context.Context, opts *store.QueryOptions, filter
 	if opts.OrderBy != "" {
 		query = query.Order(opts.OrderBy)
 	} else {
-		query = query.Order("created_at DESC")
+		query = query.Order("tb_refund_request.created_at DESC")
 	}
 
 	if err := query.Find(&requests).Error; err != nil {