public async Task <IActionResult> addSongToPlaylist(int playlistId, int songId)
{
var playListModel = await _context.Playlists.SingleOrDefaultAsync(p => p.PlaylistId == playlistId);
if (playListModel == null)
{
return(NotFound());
}
var songModel = await _context.Songs.SingleOrDefaultAsync(s => s.SongId == songId);
if (songModel == null)
{
return(NotFound());
}
//check if the song is alreay in this playlist
var song = playListModel.Songs.SingleOrDefault(s => s.SongId == songId);
if (song == null)
{
Models.BridgeModel.PlaylistSongModel playlistSongModel = new Models.BridgeModel.PlaylistSongModel();
playlistSongModel.Playlist = playListModel;
playlistSongModel.PlaylistId = playlistId;
playlistSongModel.Song = songModel;
playlistSongModel.SongId = songId;
_context.Add(playlistSongModel);
await _context.SaveChangesAsync();
}
return(RedirectToAction("Display", "SongModels"));
}
public ICollection <Models.BridgeModel.PlaylistSongModel> RandomSongsToPlaylist(ICollection <PlaylistModel> playlists, ICollection <SongModel> songs)
{
ICollection <Models.BridgeModel.PlaylistSongModel> ret = new List <Models.BridgeModel.PlaylistSongModel>();
for (int i = 0; i < songs.Count; i++)
{
int randNumPlaylistToAdd = random.Next(0, playlists.Count + 1);
for (int j = 0; j < randNumPlaylistToAdd; j++)
{
int indexToAdd = random.Next(0, playlists.Count);
PlaylistModel curPlaylist = playlists.ElementAt(indexToAdd);
Models.BridgeModel.PlaylistSongModel temp = new Models.BridgeModel.PlaylistSongModel();
temp.PlaylistId = curPlaylist.PlaylistId;
temp.SongId = songs.ElementAt(i).SongId;
if (!CheckIfSongAlreadyInPlaylist(temp.SongId, temp.PlaylistId))
{
ret.Add(temp);
dbContext.Add(temp);
}
}
}
dbContext.SaveChanges();
return(ret);
}
