Model dependecies

app/models/artist.rb

@@ -1,4 +1,6 @@
 class Artist < ActiveRecord::Base
   has_many :albums, :order => 'has_pic DESC, year ASC, id ASC', :dependent => :destroy
   has_many :artist_links, :dependent => :destroy
+  has_many :artist_aliases, :dependent => :destroy
+  has_many :tracks, :through => :track_artists
 end

app/models/artist_alias.rb

@@ -1,2 +1,3 @@
 class ArtistAlias < ActiveRecord::Base
+  belongs_to :artist
 end

app/models/track.rb

@@ -1,3 +1,4 @@
 class Track < ActiveRecord::Base
   belongs_to :album
+  belongs_to :artist, :through => :track_artists
 end

app/models/track_artist.rb

@@ -1,2 +1,4 @@
 class TrackArtist < ActiveRecord::Base
+  belongs_to :track
+  belongs_to :artist
 end