Liste aller Unterseiten in PHP erhalten oder Alternative zu QueryGenerator->getTreeList

Liste aller Unterseiten in PHP erhalten oder Alternative zu QueryGenerator->getTreeList

Vermutlich nutzen einige von euch die Methode getTreeList() im QueryGenerator um eine kommaseparierte Liste von Unterseiten zu erhalten. Dies wird aber spätestens in TYPO3 12 nicht mehr funktionieren. Wir haben da vielleicht etwas für euch.

Eine Alternative zu dieser Funktion könnt ihr mit dem TYPO3 QueryBuilder schnell selber zaubern. Diese kann dann so oder so ähnlich aussehen:

<?php declare(strict_types=1); namespace In2code\Lux\Domain\Repository; use Doctrine\DBAL\DBALException; use Doctrine\DBAL\Driver\Exception as ExceptionDbalDriver; use PDO; use TYPO3\CMS\Core\Database\ConnectionPool; use TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction; use TYPO3\CMS\Core\Database\Query\Restriction\HiddenRestriction; use TYPO3\CMS\Core\Utility\GeneralUtility; class PageRepository extends AbstractRepository { const TABLE_NAME = 'pages'; /** * Successor of TYPO3\CMS\Core\Database\QueryGenerator->getTreeList as it was removed in TYPO3 12 * * @param int $pageIdentifier Start page identifier * @param bool $addStart Add start page identifier to list * @param bool $addHidden Should records with pages.hidden=1 be added? * @return array * @throws DBALException * @throws ExceptionDbalDriver */ public function getAllSubpageIdentifiers(int $pageIdentifier, bool $addStart = true, bool $addHidden = true): array { $identifiers = []; if ($addStart === true) { $identifiers[] = $pageIdentifier; } foreach ($this->getChildrenPageIdentifiers($pageIdentifier, $addHidden) as $identifier) { $identifiers = array_merge($identifiers, $this->getAllSubpageIdentifiers($identifier, true, $addHidden)); } return $identifiers; } /** * @param int $pageIdentifier * @param bool $addHidden * @return array * @throws DBALException * @throws ExceptionDbalDriver */ protected function getChildrenPageIdentifiers(int $pageIdentifier, bool $addHidden): array { $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable(self::TABLE_NAME); $queryBuilder->getRestrictions()->removeAll(); $queryBuilder->getRestrictions()->add(GeneralUtility::makeInstance(DeletedRestriction::class)); $queryBuilder ->select('uid', 'uid') ->from(self::TABLE_NAME) ->where( $queryBuilder->expr()->eq( 'pid', $queryBuilder->createNamedParameter($pageIdentifier, PDO::PARAM_INT) ), $queryBuilder->expr()->eq('sys_language_uid', 0) ); if ($addHidden === false) { $queryBuilder->getRestrictions()->add(GeneralUtility::makeInstance(HiddenRestriction::class)); } $result = $queryBuilder->execute()->fetchAllKeyValue(); return array_values($result); } }

Dieses Code-Beispiel wurde (leicht modifiziert) aus der Extension LUX entnommen. Hierbei wird die Startfunktion getAllSubpageIdentifiers() rekursiv aufgerufen, bis alle Unterseiten hinzugefügt wurden. Als Parameter muss mindestens die Startseiten UID übergeben werden.

Die Deprecation Notice zur QueryGenerator Klasse findet ihr übrigens in der TYPO3 Dokumentation.

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