DocumentEntry::getDocumentCreatedEntryAuthorId

static function getDocumentCreatedEntryAuthorId(int $documentId): ?int
{
	$query =
		TimelineTable::query()
			->setSelect(['AUTHOR_ID'])
			->where('ASSOCIATED_ENTITY_TYPE_ID', TimelineType::DOCUMENT)
			->where('ASSOCIATED_ENTITY_ID', $documentId)
			->where('TYPE_ID', TimelineType::DOCUMENT)
			->where('TYPE_CATEGORY_ID', TimelineType::CREATION)
			->setOrder(['ID' => 'DESC'])
			->setLimit(1)
	;

	$entry = $query->exec()->fetchObject();

	return $entry ? $entry->getAuthorId() : null;
}