public async Task <ActionResult <TimeTableDto> > PostEvent(TimeTableDto timetableDto)
 {
     try
     {
         var mappedEntity = _mapper.Map <TimeTable>(timetableDto);
         _timeTableRepository.Add(mappedEntity);
         if (await _timeTableRepository.Save())
         {
             return(Created($"/api/v1.0/Timetables/{mappedEntity.Id}", _mapper.Map <TimeTable>(mappedEntity)));
         }
     }
     catch (Exception e)
     {
         return(this.StatusCode(StatusCodes.Status500InternalServerError, $"Database Failure: {e.Message}"));
     }
     return(BadRequest());
 }