private IEnumerable <yoshop_upload_file> GetUploadFileList(int group_id, string type = "image", FilePageRequest request = null) { return(group_id == -1 ? UploadFileService.LoadPageEntities <uint>(request.current_page, request.per_page, ref request.total, l => l.file_type == type && l.is_delete == 0, l => l.file_id, true) : UploadFileService.LoadPageEntities <uint>(request.current_page, request.per_page, ref request.total, l => l.file_type == type && l.is_delete == 0 && l.group_id == group_id, l => l.file_id, true)); }