In order to delay a page redirect with several seconds, I wrote this simple helper

<?php
  use_helper('Javascript');
 
  /**
   * Adds javascript code to delay a page redirect
   *
   * @param string 'module/action' or '@rule' of the action (same argument as url_for())
   * @param int time of delay in seconds. Default = 5
   * @return JavaScript tag for delayed page redirect
   */
  function delayed_redirect($internal_uri, $time = 5)
  {
    sfContext::getInstance()->getResponse()->addJavascript(sfConfig::get('sf_prototype_web_dir').'/js/prototype');
    $code = 'new PeriodicalExecuter(function() { location.href=\''.url_for($internal_uri).'\';}, '.$time.')';
 
    return javascript_tag($code);
  }
 

See http://www.symfony-project.com/book/1_0/07-Inside-the-View-Layer#Adding%20Your%20Own%20Helpers for information on how to add your own helper

This snippet show :

* How to redirect to module/action of an other application

* An exemple of adding a view object action in admin generator

There is no method given by Symfony to redirect to module/action of an other application. Redirect method of SfActions permit only to redirect to module/action of the current application or to an url.

In the forum fabien say, it is because applications are independant.

But it could be usefull for a backend (generated with admin generator), to add a new "object_actions" which permit to view the result of a record (an article for e.g.) by redirecting to the article webpage in the frontend.

Then you can add in the Actions class an action method like :

public function executeView() {
  $this->redirect("http://".$this->getContext()->getRequest()->getHost().'/article/'.$this->getRequestParameter('id'));
}
 
// or if the application is not the default application (behind index.php) and the application is named "frontend"
 
public function executeView() {
  $applicationName='frontend';
  $this->redirect("http://".$this->getContext()->getRequest()->getHost().'/'.$applicationName.'.php/article/'.$this->getRequestParameter('id'));
}

To add this action in the backend, add this line to generator.yml :

generator:
  param:
    list:
      object_actions:
        _edit: -
        view:  { name : View this article, action: view, icon: backend/view.png }