public async Task <IActionResult> Edit(string id, EditModel quizModel)
{
Quiz quiz = (Quiz)quizModel;
quiz.OwnerId = User.FindFirstValue(ClaimTypes.NameIdentifier);
if (id != quiz.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
using (var transcation = await _dao.BeginTtransaction())
{
await _dao.Update(quiz);
await _daoQuestion.DeleteAllWithId(quizModel.RemovedQuestions);
await _daoQuestion.UpdateAll(quiz.Questions.Where(q => q.Id != null)
.Select((q, index) =>
{
q.QuizId = quiz.Id;
q.Number = index + 1;
return(q);
}).ToArray());
await _daoQuestion.AddAll(quiz.Questions.Where(q => q.Id == null)
.Select((q, index) =>
{
q.QuizId = quiz.Id;
q.Number = index + 1;
return(q);
}).ToArray());
transcation.Commit();
}
}
catch (DbUpdateConcurrencyException)
{
return(Problem());
}
return(RedirectToAction(nameof(Index)));
}
return(View(quiz));
}
