function onEdit($param) { try { if (isset($param['key'])) { $key = $param['key']; TTransaction::open('liger'); $object = new Imovel($key); $object->proprietarios = $object->getProprietarios(); $this->form->setData($object); TTransaction::close(); } else { $this->form->clear(); } } catch (Exception $e) { // shows the exception error message new TMessage('error', '<b>Error</b> ' . $e->getMessage()); // undo all pending operations TTransaction::rollback(); } }