public void EditSonglist(SonglistDTO songlistDTO, List <int> songIds)
{
if (songlistDTO == null)
{
throw new ArgumentNullException("Songlist Service - EditSonglist(...) songlistDTO cannot be null");
}
using (var uow = UnitOfWorkProvider.Create())
{
var songlist = songlistRepository.GetByID(songlistDTO.ID);
if (songIds != null && songIds.Any())
{
var songs = songRepository.GetByIDs(songIds);
songlist.Songs.RemoveAll(song => !songs.Contains(song));
songlist.Songs.AddRange(
songs.Where(song => !songlist.Songs.Contains(song)));
}
else
{
songlist.Songs.Clear();
}
songlistRepository.Update(songlist);
uow.Commit();
}
}
/// <summary>
/// Gets the songlist according to the ID
/// </summary>
/// <param name="songlistId">The songlist id</param>
/// <returns>songlist according to ID</returns>
private Songlist GetSongSonglist(int songlistID)
{
if (songlistID < 1)
{
throw new ArgumentOutOfRangeException("Song_Songlist Service - GetSongSonglist(...) songlistID cannot be lesser than 1");
}
var songlist = songlistRepository.GetByID(songlistID);
if (songlist == null)
{
throw new NullReferenceException("Song_SonglistService - GetSonglistOfSong(...) the songlist is null");
}
return(songlist);
}
