public override async Task <int> CreateAsync(DetailDto model, Func <DetailDto, Detail> converter)
{
var groupSubjectId = (await _groupSubjectRepository.FilterAsync(x => x.GroupId == model.Group.Id && x.SubjectId == model.Subject.Id)).FirstOrDefault()?.Id;
if (!groupSubjectId.HasValue)
{
throw new NullReferenceException(nameof(GroupSubject));
}
var entity = converter?.Invoke(model);
entity.GroupSubjectId = groupSubjectId.Value;
return(await _repository.CreateAsync(entity));
}
