protected void AddArtist(Artist artist)
{
_artists.Add(artist);
ArtistsHash = ComputeArtistsHash(_artists);
}
private Album AddNonTrackEntitiesAndReturnAlbum(TagLib.File file, ISession session)
{
var artistsToAdd = file.Tag.AlbumArtists
.Union(file.Tag.Performers)
.Select(s => s.TrimEnd('\0'))
.ToArray()
.Except(from artist in session.Query<Artist>()
select artist.Name
, StringComparer.Ordinal)
.ToList();
if (artistsToAdd.Any())
{
foreach (string artistName in artistsToAdd)
{
Artist newArtist = new Artist
{
Name = artistName
};
session.Save(newArtist);
}
}
// Add album if necessary
var tagAlbumArtists = file.Tag.AlbumArtists.Select(s => s.TrimEnd('\0')).ToArray();
var albumArtistsQueryable =
(from artist in session.Query<Artist>()
where tagAlbumArtists.Contains(artist.Name)
select artist)
.ToList();
var albumArtists = new HashedSet<Artist>(albumArtistsQueryable);
string albumArtistsHash = Album.ComputeArtistsHash(albumArtists);
// matchingAlbumsInDatabase.Count() should be 0 or 1
var tagAlbum = file.Tag.Album.TrimEnd('\0');
var matchingAlbumsInDatabase =
(from album in session.Query<Album>()
where album.Title == tagAlbum
&& album.ArtistsHash == albumArtistsHash
select album);
Album trackAlbum;
if (!matchingAlbumsInDatabase.Any())
{
trackAlbum = new Album
{
Title = tagAlbum,
Artists = albumArtists
};
session.Save(trackAlbum);
}
else
{
trackAlbum = matchingAlbumsInDatabase.First();
}
// Add genres if necessary
var genreNamesToAdd = file.Tag.Genres.Select(s => s.TrimEnd('\0')).Except(
from genre in session.Query<Genre>()
select genre.Name, StringComparer.Ordinal);
foreach (string genreName in genreNamesToAdd)
{
Genre genre = new Genre
{
Name = genreName
};
session.Save(genre);
}
return trackAlbum;
}