public virtual ArtistForAlbum AddArtist(string name, bool isSupport, ArtistRoles roles)
{
ParamIs.NotNullOrEmpty(() => name);
var link = new ArtistForAlbum(this, name, isSupport, roles);
AllArtists.Add(link);
return(link);
}
public virtual CollectionDiffWithValue <ArtistForAlbum, ArtistForAlbum> SyncArtists(
IEnumerable <ArtistForAlbumContract> newArtists, Func <ArtistContract, Artist> artistGetter)
{
var create = new Func <ArtistForAlbumContract, ArtistForAlbum>(contract => {
ArtistForAlbum link = null;
if (contract.Artist != null)
{
var artist = artistGetter(contract.Artist);
if (!HasArtist(artist))
{
link = AddArtist(artist, contract.IsSupport, contract.Roles);
link.Name = contract.IsCustomName ? contract.Name : null;
}
}
else
{
link = AddArtist(contract.Name, contract.IsSupport, contract.Roles);
}
return(link);
});
var delete = new Action <ArtistForAlbum>(link => {
link.Delete();
});
var update = new Func <ArtistForAlbum, ArtistForAlbumContract, bool>((old, newEntry) => {
if (!old.ContentEquals(newEntry))
{
old.IsSupport = newEntry.IsSupport;
old.Roles = newEntry.Roles;
old.Name = newEntry.IsCustomName ? newEntry.Name : null;
return(true);
}
else
{
return(false);
}
});
var diff = CollectionHelper.SyncWithContent(AllArtists, newArtists.ToArray(), (a1, a2) => a1.Id == a2.Id, create, update, delete);
if (diff.Changed)
{
UpdateArtistString();
}
return(diff);
}
public virtual void DeleteArtistForAlbum(ArtistForAlbum artistForAlbum)
{
if (!artistForAlbum.Album.Equals(this))
{
throw new ArgumentException("Artist is not attached to album", "artistForAlbum");
}
AllArtists.Remove(artistForAlbum);
if (artistForAlbum.Artist != null)
{
artistForAlbum.Artist.AllAlbums.Remove(artistForAlbum);
}
UpdateArtistString();
}
/// <summary>
/// Checks whether this album has a specific artist.
/// </summary>
/// <param name="artistForAlbum">Artist to be checked. Cannot be null.</param>
/// <returns>True if the artist has this album. Otherwise false.</returns>
public virtual bool HasArtistForAlbum(ArtistForAlbum artistForAlbum)
{
ParamIs.NotNull(() => artistForAlbum);
return(Artists.Any(a => a.ArtistLinkEquals(artistForAlbum)));
}
