Unless I am missing something, it still does the same thing, I just removed a chunk of conditionals which were not used anymore. Now the code either redirect to the admin_order_customer_path if the order is completed, or the the edit page if 1) there was an error or 2) saved but order isnt completed. 

The removed code was used to separate the redirects between the :show and the :edit action. Since we removed the :show action, everything goes to the same place now.