public static void AddSongToPlaylist(int id, int playlistID)
        {
            var context = new MyJukeboxEntities();

            var entry = new tPLentries()
            {
                PLID   = playlistID,
                SongID = id,
                Pos    = 1
            };

            context.tPLentries.Add(entry);
            context.SaveChanges();
        }
        //public static List<string> GetQueryList()
        //{
        //    List<string> queries = null;

        //    var context = new MyJukeboxEntities();

        //    queries = context.tQueries
        //                    .Select(q => q.Query)
        //                    .OrderBy(q => q).ToList();

        //    return queries;
        //}

        public static void AddSongToPlaylist(int id, string playlistName)
        {
            var context  = new MyJukeboxEntities();
            var playlist = context.tPlaylists
                           .Where(p => p.Name == playlistName)
                           .Select(p => p.ID).ToList();

            if (playlist == null)
            {
                throw new Exception("Wrong playlist!");
            }

            var entry = new tPLentries()
            {
                PLID   = playlist[0],
                SongID = id,
                Pos    = 1
            };

            context.tPLentries.Add(entry);
            context.SaveChanges();
        }