ExternalLinkTable::loadByDocumentId

static function loadByDocumentId(int $documentId): ?array
{
	if($documentId <= 0)
	{
		return null;
	}
	if(!isset(static::$cache[$documentId]))
	{
		$item = static::getList(['filter' => ['=DOCUMENT_ID' => $documentId]])->fetch();
		if($item)
		{
			static::$cache[$documentId] = $item;
		}
	}

	return static::$cache[$documentId] ?? null;
}