title: Can we use a custom action with inherited_resources in a DRY manner?
body: <p>We have a custom action (:register) for our Location model.  The supporting code is very similar to a standard :update.  Since inherited_resources provided a "template" for us, we copied the update code from actions.rb, changing 'update_attributes' to 'register' and the flash message reflects the different action.
  This doesn't feel very DRY.  We would like to <strong>utilize</strong> :update instead.  Any ideas?</p>
  
  <pre><code>class LocationsController &lt; InheritedResources::Base
    def register(options={}, &amp;block)
      #TODO: copied update from actions.rb.  I expect there is a better way.
      # All I changed was the flash message (to reflect the action)
      #  and the method call on the object (update_attributes -&gt; register)
      object = resource
  
      if object.register
        set_flash_message!(:notice, '{{resource_name}} was successfully registered.')
        options[:location] ||= resource_url rescue nil
        respond_with_dual_blocks(object, options, true, block)
      else
        set_flash_message!(:error)
        respond_with_dual_blocks(object, options, false, block)
      end
    end
  </code></pre>