private void UpdateMovieMovies(string[] selectedMovies, Rental rentalToUpdate)
{
if (selectedMovies == null)
{
rentalToUpdate.MovieAssigns = new List <MovieAssign>();
return;
}
var selectedMovieHS = new HashSet <string>(selectedMovies);
var rentalMovies = new HashSet <int>
(rentalToUpdate.MovieAssigns.Select(c => c.Movie.MovieID));
foreach (var movie in _context.Movies)
{
if (selectedMovieHS.Contains(movie.MovieID.ToString()))
{
if (!rentalMovies.Contains(movie.MovieID))
{
rentalToUpdate.MovieAssigns.Add(new MovieAssign {
RentalID = rentalToUpdate.RentalID, MovieID = movie.MovieID
});
}
}
else
{
if (rentalMovies.Contains(movie.MovieID))
{
MovieAssign movieToRemove = rentalToUpdate.MovieAssigns.FirstOrDefault(i => i.MovieID == movie.MovieID);
_context.Remove(movieToRemove);
}
}
}
}
public async Task <IActionResult> Create([Bind("RentalID,Cpf,RentalDate")] Rental rental, string[] selectedMovies)
{
if (selectedMovies != null)
{
rental.MovieAssigns = new List <MovieAssign>();
foreach (var movie in selectedMovies)
{
var movieToAdd = new MovieAssign {
RentalID = rental.RentalID, MovieID = int.Parse(movie)
};
rental.MovieAssigns.Add(movieToAdd);
}
}
if (ModelState.IsValid)
{
_context.Add(rental);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
PopulateAssignedMovieData(rental);
return(View(rental));
}