public IHttpActionResult DeleteRaceClassification(int?id)
{
if (!id.HasValue)
{
throw new HttpResponseException(HttpStatusCode.BadRequest);
}
var raceClassificationDB = raceClassificationRepository.GetRaceClassification(id ?? (int)InvalidPropertyValues.undefinedValue);
if (raceClassificationDB == null)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
var races = raceRepository.GetRacesForClassifications(raceClassificationDB.RaceClassificationID);
if (races.Any())
{
return(BadRequest("The Race Classification is used by a Race!\nTo delete it contact your Database Manager."));
}
raceClassificationRepository.Remove(raceClassificationDB);
unitOfWork.Complete();
return(Ok());
}