public ActionResult Save(TvShow tvShow)
{
//Use modelstate property to get access to validatation data.
//Since we are requiring specific properties in the TvShow model,
//we want to return the TvShowForm if fields are empty. So need
//to define the viewModel and return the form.
if (!ModelState.IsValid)
{
var viewModel = new TvShowFormViewModel(tvShow)
{
//Left empty on purpose. We do not need to return anything from the database back
//to the form (like we do for the MemberForm retrieving Account Types)
};
return(View("MovieForm", viewModel));
}
//if the tv show Id is 0, then we have a new tv show
if (tvShow.Id == 0)
{
//To save the data to the database, we need to create a context to it.
_context.TvShows.Add(tvShow);
}
else
{
//Using the Single method here because if the given tv show is not found,
//we want to throw an exception. This action should only be called anyways because of posting
//the Tv Show form.
var tvShowInDb = _context.TvShows.Single(t => t.Id == tvShow.Id);
tvShowInDb.TvShowName = tvShow.TvShowName;
tvShowInDb.SeasonNumber = tvShow.SeasonNumber;
tvShowInDb.NumberOfEpisodes = tvShow.NumberOfEpisodes;
}
//Persist the changes. This creates SQL statements at runtime, within a transaction.
_context.SaveChanges();
//Now redirect the members to the TV Shows page "Index"
return(RedirectToAction("Index", "TvShows"));
}
public ActionResult Edit(int id)
{
//First we need to get this TvShow with the TvShow id from the database.
//If the tv show with the given id exists it will be returned, otherwise null.
var tvShow = _context.TvShows.SingleOrDefault(t => t.Id == id);
if (tvShow == null)
{
return(HttpNotFound());
}
//New we need to render the tv show edit form, which is based on the View Model, and specify the
//view name.
var viewModel = new TvShowFormViewModel(tvShow)
{
//Left empty on purpose. We do not need to return anything from the database back
//to the form (like we do for the MemberForm retrieving Account Types)
};
return(View("TvShowForm", viewModel));
}
public ViewResult New()
{
var viewModel = new TvShowFormViewModel();
return(View("TvShowForm", viewModel));
}