[ValidateAntiForgeryToken] // step 22b:
public ActionResult Create(QuizFormViewModel viewModel) // takes parameter of QuizFormViewModel -- the model behind the view. When posting the form will result this action
{
if (!ModelState.IsValid)
{
viewModel.Genres = _context.Genres.ToList();
return View("QuizForm", viewModel);
}
var userId = User.Identity.GetUserId(); // need to set the authorId, need an applicationUser object
//var author = _context.Users.Single(u => u.Id == userId); // accessing when not using FK
//var genre = _context.Genres.Single(g => g.Id == viewModel.Genre); // accessing when not using FK
// step 13c: creating new Quiz object and converting it to the viewModel object
var quiz = new Quiz
{
// need to set the authorId, need an applicationUser object
// Author = author,
Creation = viewModel.GetDateTime(),
// Genre = genre,
Title = viewModel.Title,
Description = viewModel.Description,
// step 14: Modified by adding the FK for Author and Genre. the above are uncommented.
AuthorId = userId,
GenreId = viewModel.Genre
};
// adding the object to the contex to be tracked by EF
// Ef will generate a sql statment and execute it against the database.
_context.Guizzes.Add(quiz);
_context.SaveChanges();
return RedirectToAction("QuizsIndex", "Home"); // redirecting the user to the homepage --> later to the list of all the upcoming quizzes
}
[Authorize] // step 11: prompting the user to be logged in
public ActionResult Create() // step 9a: creating QuizsController
{
//step 10 I: create viewModel and set the genre
var viewModel = new QuizFormViewModel
{
Genres = _context.Genres.ToList()
};
return View("QuizForm", viewModel);
}
public ActionResult Edit(int id)
{
var userId = User.Identity.GetUserId();
var quiz = _context.Guizzes.Single(m => m.Id == id && m.AuthorId == userId);
var viewModel = new QuizFormViewModel
{
// initialize the genres dropdown list, quiz model's properties to be able to edit.
// step 36c: adding Heading // in step 38b id initialized
Heading = "Edit a Quiz",
Id = quiz.Id,
Genres = _context.Genres.ToList(),
Creation = quiz.Creation,
Genre = quiz.GenreId,
Title = quiz.Title,
Description = quiz.Description
};
return View("QuizForm", viewModel); // the vire "Create", already exist that renders to capture the view. reusing it.
}
public ActionResult Update(QuizFormViewModel viewModel)
{
if (!ModelState.IsValid)
{
viewModel.Genres = _context.Genres.ToList();
return(View("QuizForm", viewModel));
}
var userId = User.Identity.GetUserId();
// pulling out the existing quiz and modifying its property
var quiz = _context.Guizzes.Single(m => m.Id == viewModel.Id && m.AuthorId == userId);
// modifying / updating the quiz
quiz.Title = viewModel.Title;
quiz.Description = viewModel.Description;
quiz.Creation = viewModel.Creation;
quiz.GenreId = viewModel.Genre;
_context.SaveChanges();
return(RedirectToAction("QuizIndex", "Home"));
}
