public async Task <TravelDTO> GetTravelByIdAsync(int tId)
{
var travel = await TravelRepository.GetSingleModelAsync(t => t.id == tId);
TravelDTO travelDTO = Mapper.Map <TravelDTO>(travel);
List <FileAttachmentEntity> fileAttachments = await _travelFileAttachmentService.GetTravelFileListByTravelId(travel.id);
travelDTO.imgList = Mapper.Map <List <FileAttachmentDTO> >(fileAttachments);
return(travelDTO);
}