Menu.php

<?php
class Dsao_Controller_Action_Helper_Menu
  extends Zend_Controller_Action_Helper_Abstract
{
  public function postDispatch()
  {
    // Rolle des angemeldeten Benutzers
    $role = $this->getActionController()->getUser()->getData('role', 'guest');

    // Cache-Loader
    $cacheLoader = new Dsao_Cache_Loader('File',
      array('automatic_serialization' => true,
            'master_files' =>
              array(XML_DIR.Dsao_Module_Menu::XML_MODULE_MENU_DIR)));
    $cache = $cacheLoader->getCache();

    $idCache = 'menu'.$role;

    // Falls Menü nicht im Cache vorhanden
    if (!($menu = $cache->load($idCache)))
    {
      $menu = new Dsao_Module_Menu($role);

      $cache->save($menu, $idCache, array('menu', 'module'));
    }

    $this->getActionController()->getView()->assign('menu', $menu);
  }
}