added artists, comments

db/migrate/20100214080605_create_artist_urls.rb

@@ -0,0 +1,17 @@
+class CreateArtistUrls < ActiveRecord::Migration
+  def self.up
+    create_table :artist_urls do |t|
+      t.column :artist_id, :integer, :null => false
+      t.column :url, :text, :null => false
+      t.column :normalized_url, :text, :null => false
+      t.timestamps
+    end
+    
+    add_index :artist_urls, :artist_id
+    add_index :artist_urls, :normalized_url
+  end
+
+  def self.down
+    drop_table :artist_urls
+  end
+end