release; } /** * {@inheritdoc} */ public function require_all_upgrades() { return false; } /** * {@inheritdoc} */ public function concern() { return $this->concern; } /** * {@inheritdoc} */ public function apply(base $databox, Application $app) { foreach ($databox->get_meta_structure() as $databox_field) { $databox_field->save(); } return true; } }