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

lib/discogs.rb

@@ -12,7 +12,7 @@ class Discogs
   def self.process_artist node
     artist = Artist.new(
       :name => (node.css('name').first.text),
-      :pic_url => (node.css('images > image[type="primary"]').first.text unless node.css('images > image[type="primary"]').empty?),
+      :pic_url => (node.css('images > image[type="primary"]').first.attr('uri') unless node.css('images > image[type="primary"]').empty?),
       :status => 1
     )
     artist.save