public PlaylistTrack UpdatePlayListTrack(PlaylistTrack playlistTrack)
{
var originalTrack = context.PlaylistTracks.Find(playlistTrack.Id);
if (originalTrack == null) return null;
context.Entry(originalTrack).CurrentValues.SetValues(playlistTrack);
context.Entry(originalTrack).State = EntityState.Modified;
context.SaveChanges();
return originalTrack;
}