I'd like my create and edit forms to both have a Cancel button that
redirects back to the referring page. To date, the best approach I've
found is to include an additional submit_tag with a :name parameter of
cancel. Then inside the controller I have in if/else statement that
checks for the existence of params[:cancel]. If it exists, I issue a
redirect to the referring page. Otherwise, I proceed with the create/
Is there a better way?