提交

server/service/folder_service.go

@@ -48,6 +48,14 @@ func (s *FolderService) Create(req *dto.CreateFolderRequest, ownerID uint64) (*d
 		return nil, errors.New("同名文件夹已存在")
 	}
 
+	// 检查biz_id唯一性
+	if req.BizID != "" {
+		existingBiz, _ := s.folderRepo.FindByBizID(req.BizID, ownerID)
+		if existingBiz != nil {
+			return nil, fmt.Errorf("业务编号 %s 已存在", req.BizID)
+		}
+	}
+
 	folderID := utils.GenID()
 	folder := &model.Folder{
 		ID:       folderID,
@@ -253,6 +261,7 @@ func (s *FolderService) getUserRoleIDs(userID uint64) []uint64 {
 func (s *FolderService) toFileVO(file *model.File) *dto.FileVO {
 	vo := &dto.FileVO{
 		ID:              dto.StringID(file.ID),
+		BizID:           file.BizID,
 		Name:            file.Name,
 		Extension:       file.Extension,
 		FolderID:        dto.StringID(file.FolderID),