feat: 复用颜色映射生成完整采购规格 (#295)

admin/repository/shopee.go

@@ -332,6 +332,25 @@ func ListShopeePddLinksByGoodsIDs(q Execer, goodsIDs []string) (map[string]strin
 	return links, nil
 }
 
+// ListShopeeGoodsIDsByPddGoodsID 返回当前仍关联指定 PDD 商品的蝦皮商品。
+func ListShopeeGoodsIDsByPddGoodsID(q Execer, pddGoodsID string) ([]string, error) {
+	rows, err := q.Query(`SELECT goods_id FROM shopee_products
+		WHERE pdd_goods_id=? AND deleted_at IS NULL ORDER BY goods_id`, pddGoodsID)
+	if err != nil {
+		return nil, fmt.Errorf("查询 PDD 商品 %s 的蝦皮关联失败: %w", pddGoodsID, err)
+	}
+	defer rows.Close()
+	var result []string
+	for rows.Next() {
+		var goodsID string
+		if err := rows.Scan(&goodsID); err != nil {
+			return nil, fmt.Errorf("读取 PDD 商品的蝦皮关联失败: %w", err)
+		}
+		result = append(result, goodsID)
+	}
+	return result, rows.Err()
+}
+
 // UpdateShopeePddLink 更新蝦皮商品当前关联的 PDD 商品。
 // 调用方必须先在同一事务里保证 PDD 商品存在，避免留下悬空关联。
 func UpdateShopeePddLink(q Execer, shopeeGoodsID, pddGoodsID, pddURL string) error {