VersionPress\ChangeInfos\EntityChangeInfo::getParentId PHP 메소드

    public function getParentId()
    {
        if ($this->entityInfo->parentReference) {
            $tagContainingParentId = $this->actionsInfo->getTagContainingParentId();
            return $this->getCustomTags()[$tagContainingParentId];
        }
        return null;
    }