feat(distribution): 完善分销站与主站业务数据及权益风控隔离，修复历史商品归属

backend/internal/modules/order/queries.go

@@ -63,6 +63,11 @@ func (r *Repository) ListSellerHandoffs(ctx context.Context, userID uint64, quer
 	if query.Status != "" {
 		base = base.Where("o.status = ?", query.Status)
 	}
+	if query.SiteCode != "" {
+		base = base.Joins("INNER JOIN distribution_sites AS ds ON ds.id = o.distribution_site_id AND ds.site_code = ?", query.SiteCode)
+	} else {
+		base = base.Where("o.distribution_site_id IS NULL OR o.distribution_site_id = 0")
+	}
 
 	var total int64
 	if err := base.Session(&gorm.Session{}).Count(&total).Error; err != nil {
@@ -77,7 +82,7 @@ func (r *Repository) ListSellerHandoffs(ctx context.Context, userID uint64, quer
 	for _, row := range rows {
 		items = append(items, row.toUserListItem(userID, nil))
 	}
-	metrics, err := r.sellerHandoffMetrics(ctx, userID)
+	metrics, err := r.sellerHandoffMetrics(ctx, userID, query.SiteCode)
 	if err != nil {
 		return nil, err
 	}
@@ -90,16 +95,21 @@ func (r *Repository) ListSellerHandoffs(ctx context.Context, userID uint64, quer
 	}, nil
 }
 
-func (r *Repository) sellerHandoffMetrics(ctx context.Context, userID uint64) (SellerHandoffMetrics, error) {
+func (r *Repository) sellerHandoffMetrics(ctx context.Context, userID uint64, siteCode ...string) (SellerHandoffMetrics, error) {
 	base := r.db.WithContext(ctx).Table("rental_orders AS o").Where("o.owner_id = ?", userID)
+	if len(siteCode) > 0 && siteCode[0] != "" {
+		base = base.Joins("INNER JOIN distribution_sites AS ds ON ds.id = o.distribution_site_id AND ds.site_code = ?", siteCode[0])
+	} else if len(siteCode) > 0 {
+		base = base.Where("o.distribution_site_id IS NULL OR o.distribution_site_id = 0")
+	}
 	var metrics SellerHandoffMetrics
-	if err := base.Where("o.status = ? AND o.handoff_status = ?", orderStatusPendingHandoff, handoffStatusPendingOwner).Count(&metrics.PendingHandoff).Error; err != nil {
+	if err := base.Session(&gorm.Session{}).Where("o.status = ? AND o.handoff_status = ?", orderStatusPendingHandoff, handoffStatusPendingOwner).Count(&metrics.PendingHandoff).Error; err != nil {
 		return SellerHandoffMetrics{}, err
 	}
-	if err := r.db.WithContext(ctx).Table("rental_orders AS o").Where("o.owner_id = ? AND o.status = ?", userID, orderStatusPendingCheckoutConfirm).Count(&metrics.PendingCheckout).Error; err != nil {
+	if err := base.Session(&gorm.Session{}).Where("o.status = ?", orderStatusPendingCheckoutConfirm).Count(&metrics.PendingCheckout).Error; err != nil {
 		return SellerHandoffMetrics{}, err
 	}
-	if err := r.db.WithContext(ctx).Table("rental_orders AS o").Where("o.owner_id = ? AND o.status IN ?", userID, sellerHandoffAbnormalStatuses()).Count(&metrics.Abnormal).Error; err != nil {
+	if err := base.Session(&gorm.Session{}).Where("o.status IN ?", sellerHandoffAbnormalStatuses()).Count(&metrics.Abnormal).Error; err != nil {
 		return SellerHandoffMetrics{}, err
 	}
 	return metrics, nil