/**
     *
     * Loads Data for Navigation in Region West
     * @param sfWebRequest $request
     * @return <type>
     */
    public function executeLoadMenue(sfWebRequest $request) {
        $menueObject = new Menue();
        $result = CredentialTable::instance()->getAllCredentials('c.usermodule asc,c.usergroup asc');

        $menueObject->setRecords($result);
        $menueObject->setUserright($this->getUser()->getAttribute('credential'));
        $menueObject->setContext($this->getContext());

        $json_result = $menueObject->buildTree();
        $this->renderText('{"result":'.json_encode($json_result).'}');
     
        return sfView::NONE;
    }