public async Task <IActionResult> Create(CreateViewModel model)
{
var serverValidation = new ServerValidation(_quizRepository);
if (ModelState.IsValid)
{
var quiz = new Quiz
{
Title = model.Title,
Questions = model.Questions
};
// A second validation on top of the client-side validation
// It makes sure the inputs the client-side validation covers are correct
// and performs other validation that is not executed in the client-side
var isModelValidInServer = serverValidation.IsModelValidInServer(quiz, ModelState);
if (isModelValidInServer)
{
_quizRepository.Save(quiz);
await _context.SaveChangesAsync();
// Passing which page the user comes from
// It is to difference the message coming from the Edit page
TempData["create"] = "Create";
return(RedirectToAction("Details", new { id = quiz.QuizId }));
}
return(View(model));
}
return(View(model));
}
public async Task <IActionResult> Edit(int id, Quiz quiz)
{
var serverValidation = new ServerValidation(_quizRepository);
if (id != quiz.QuizId)
{
return(NotFound());
}
if (!_quizRepository.QuizExists(quiz.QuizId))
{
return(NotFound($"The Quiz with id - {quiz.QuizId} does not exist in the system."));
}
if (ModelState.IsValid)
{
var isModelValidInServer = serverValidation.IsModelValidInServer(quiz, ModelState);
if (isModelValidInServer)
{
foreach (var question in quiz.Questions)
{
foreach (var answer in question.Answers)
{
_context.Entry(answer).State = EntityState.Modified;
_answerRepository.Edit(answer);
}
_context.Entry(question).State = EntityState.Modified;
_questionRepository.Edit(question);
}
_context.Entry(quiz).State = EntityState.Modified;
_quizRepository.Edit(quiz);
await _context.SaveChangesAsync();
TempData["edit"] = "Edit";
return(RedirectToAction("Details", new { id = quiz.QuizId }));
}
return(View(quiz));
}
return(View(quiz));
}