work on refactoring search

app/models/artist_version.rb

@@ -2,6 +2,16 @@ class ArtistVersion < ActiveRecord::Base
   belongs_to :updater
   belongs_to :artist
   
+  def self.search(params)
+    q = scoped
+    
+    if params[:artist_id]
+      q = q.where("artist_id = ?", params[:artist_id].to_i)
+    end
+    
+    q
+  end
+  
   def updater_name
     User.id_to_name(updater_id).tr("_", " ")
   end