Add API data to show/index views

app/models/artist_version.rb

@@ -23,7 +23,14 @@ class ArtistVersion < ApplicationRecord
     end
   end
 
+  module ApiMethods
+    def html_data_attributes
+      [:artist_id, :updater_id]
+    end
+  end
+
   extend SearchMethods
+  include ApiMethods
 
   def previous
     ArtistVersion.where("artist_id = ? and created_at < ?", artist_id, created_at).order("created_at desc").first