Макет по умолчанию

Core_Event::attach('Admin_Form_Action_Controller_Type_Edit.onBeforeExecute', array('Admin_Form_Action_Controller_Type_Edit_Observer', 'onBeforeExecute'));

<?php
defined('HOSTCMS') || exit('HostCMS: access denied.');

class Admin_Form_Action_Controller_Type_Edit_Observer
{
    static public function onBeforeExecute($controller, $args)
    {
        list($operation, $Admin_Form_Controller) = $args;
        if (is_null($operation))
        {
            $layout=15; //id макета по умолчанию

            $object = $controller->getObject();
            $ObjectClass = get_class($object);
            switch ($ObjectClass)
            {  
                //Структура
                case 'Structure_Model':
                    if ($object->template_id==0) $object->Document->template_id($layout);
                break;
                //Документ
                case 'Document_Model':
                    if ($object->template_id==0) $object->template_id($layout);
                break;
            }
        }
    }
}