public function editLayoutHandlePost($request)
{
$placeHolder = new PlaceHolder();
$placeHolder->name = $request->getParameter('placeholder');
$placeHolder->structure_id = $this->node->id;
$placeHolder->frontend_module_id = $request->getParameter('frontend_module_id');
$placeHolder->save();
$this->redirect($referer = $this->getRequest()->getReferer());
}