public void PopulateAssignedGenreData(Crisan_AndreaMaria_projectContext context,
Movie movie)
{
var allGenres = context.Genre;
var movieGenres = new HashSet <int>(movie.MovieGenres.Select(g => g.MovieID));
AssignedGenreDataList = new List <AssignedGenreData>();
foreach (var gen in allGenres)
{
AssignedGenreDataList.Add(new AssignedGenreData
{
GenreID = gen.ID,
Name = gen.GenreName,
Assigned = movieGenres.Contains(gen.ID)
});
}
}
public void UpdateMovieGenres(Crisan_AndreaMaria_projectContext context,
string[] selectedGenres, Movie movieToUpdate)
{
if (selectedGenres == null)
{
movieToUpdate.MovieGenres = new List <MovieGenre>();
return;
}
var selectedGenresHS = new HashSet <string>(selectedGenres);
var movieGenres = new HashSet <int>
(movieToUpdate.MovieGenres.Select(g => g.Genre.ID));
foreach (var gen in context.Genre)
{
if (selectedGenresHS.Contains(gen.ID.ToString()))
{
if (!movieGenres.Contains(gen.ID))
{
movieToUpdate.MovieGenres.Add(
new MovieGenre
{
MovieID = movieToUpdate.ID,
GenreID = gen.ID
});
}
}
else
{
if (movieGenres.Contains(gen.ID))
{
MovieGenre movieToRemove
= movieToUpdate
.MovieGenres
.SingleOrDefault(i => i.GenreID == gen.ID);
context.Remove(movieToRemove);
}
}
}
}