public async Task <DetailsViewModel> GetDetailsViewModelAsync(int assignmentId, string studentId)
{
SubmissionDTO submission = await service.GetByCompositeKeysAsync(assignmentId, studentId);
if (submission == null)
{
return(null);
}
var viewModelData = new DetailsViewData(submission);
var viewModel = viewFactory.CreateView <DetailsViewData, DetailsViewModel>(viewModelData);
return(viewModel);
}
