Pluralize old_ controllers

app/controllers/old_relations_controller.rb

@@ -0,0 +1,11 @@
+class OldRelationsController < OldController
+  private
+
+  def lookup_old_element
+    @old_element = OldRelation.find([params[:id], params[:version]])
+  end
+
+  def lookup_old_element_versions
+    @elements = OldRelation.where(:relation_id => params[:id]).order(:version)
+  end
+end