OptionGroupTable::onBeforeUpdate

static function onBeforeUpdate(Event $event): EventResult
{
	$data = $event->getParameter('fields');
	$result = new EventResult();
	if (!isset($data['MODIFY_DATE']) || !is_array($data['MODIFY_DATE']))
	{
		$result->modifyFields(['DATE_MODIFY' => new DateTime()]);
	}

	return $result;
}