I can manage a simple redirect back to /puppetclasses/:id/edit easily enough, but that still loses the context of which class/smart variable you were editing. Perhaps Amos or Jospeh can show me a better way than this:

--- a/app/controllers/puppetclasses_controller.rb
+++ b/app/controllers/puppetclasses_controller.rb
@@ -44,10 +44,12 @@ class PuppetclassesController < ApplicationController
   def update
     if @puppetclass.update_attributes(params[:puppetclass])
       notice _("Successfully updated puppetclass.")
-      redirect_to puppetclasses_url
-    else
-      render :action => 'edit'
     end
     render :action => 'edit'
   end

Since there is no show action for puppetclass, I assume you want a redirect to the referrer page.

We're a bit confused on the PR as to which page it should redirect back to. Would it be the page that originally led you to the class edit page, e.g. the puppet classes list with your search terms and so on, or back to the class edit page itself, as if Submit was just an "Apply" button?