public MovieViewModel(List <MovieDto> movies, LikeDislikeDto likeDislike)
{
Movies = movies;
LikeDislikeDto = likeDislike;
}
public LikeDislikeDto DislikeAFilm(int Id)
{
var filmLikesAndDislikes = Dbcontext.FilmLikesAndDislikes1;
var userId = HttpContext.Current.User.Identity.GetUserId();
var user = Dbcontext.AspNetUsers.Single(u => u.Id.Equals(userId));
var filmFromDb = Dbcontext.Films.Single(f => f.FilmID.Equals(Id));
// in db values are stored as bytes : 1 == true, 0 == false
var userLikedFilm = user.FilmLikesAndDislikes.SingleOrDefault(f => f.FilmID.Equals(Id) && f.UserID.Equals(userId));
byte isLiked = (byte)(userLikedFilm == null ? 0 : userLikedFilm.IsLiked);
byte isDisliked = (byte)(userLikedFilm == null ? 0 : userLikedFilm.IsDisliked);
if (isDisliked == 1)
{
return(null);
}
else if (isLiked == 1)
{
// user first liked, now wants to dislike this movie
filmFromDb.FilmLikes--;
filmFromDb.FilmDislikes++;
userLikedFilm.IsDisliked = 1;
userLikedFilm.IsLiked = 0;
Dbcontext.SaveChanges();
var likeDislikeDto = new LikeDislikeDto
{
FilmLikes = filmFromDb.FilmLikes,
FilmDislikes = filmFromDb.FilmDislikes,
Message = "Disliked!"
};
return(likeDislikeDto);
}
else
{
filmFromDb.FilmDislikes++;
filmLikesAndDislikes.Add(new FilmLikesAndDislikes
{
FilmID = Id,
UserID = userId,
IsLiked = 0,
IsDisliked = 1
});
Dbcontext.SaveChanges();
var likeDislikeDto = new LikeDislikeDto
{
FilmLikes = filmFromDb.FilmLikes,
FilmDislikes = filmFromDb.FilmDislikes,
Message = "Disliked!"
};
return(likeDislikeDto);
}
}