public function saveAction()
 {
     $this->getRequest()->setModuleName('artefato');
     $this->getRequest()->setControllerName('area-trabalho');
     $back = $this->getRequest()->getParam('back', null);
     if ($back) {
         $this->_redirect = str_replace('.', '/', $back);
     }
     parent::saveAction();
 }