gistfile1.aw

$app->getEventManager()->attach(MvcEvent::EVENT_DISPATCH, array($this, 'persistEntities'));

    public function persistEntities(MvcEvent $e) {
        try {
            $em = $e->getApplication()->getServiceManager()->get('doctrine.entitymanager.orm_default');
            $em->flush();
        } catch (\PDOException $exception) {
            $e->setError('persist-error')
                    ->setParam('exception', $exception);
            $e->getApplication()->getEventManager()->trigger('dispatch.error', $e);
        }

        return;
    }