/**
* 게시판 요약 정보 반환
*
* @param string $instanceId instance id
* @param Handler $handler board handler
* @return string
*/
public function summary($instanceId, Handler $handler)
{
$documentCount = $handler->countByBoardId($instanceId);
$configs = $this->configHandler->getDynamicFields($this->configHandler->get($instanceId));
$dynamicFieldCount = count($configs);
return ['documentCount' => $documentCount, 'dynamicFieldCount' => $dynamicFieldCount];
}