Typo3DbBackend.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Extbase\Persistence\Generic\Storage;
 
use Doctrine\DBAL\DBALException;
use Doctrine\DBAL\Platforms\SQLServerPlatform;
use ‪TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Core\Context\Context;
use ‪TYPO3\CMS\Core\Context\WorkspaceAspect;
use ‪TYPO3\CMS\Core\Database\ConnectionPool;
use ‪TYPO3\CMS\Core\Database\Query\QueryBuilder;
use ‪TYPO3\CMS\Core\Database\Query\Restriction\FrontendRestrictionContainer;
use ‪TYPO3\CMS\Core\Domain\Repository\PageRepository;
use ‪TYPO3\CMS\Core\SingletonInterface;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\MathUtility;
use ‪TYPO3\CMS\Core\Versioning\VersionState;
use ‪TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
use ‪TYPO3\CMS\Extbase\DomainObject\AbstractValueObject;
use ‪TYPO3\CMS\Extbase\Object\ObjectManagerInterface;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Mapper\DataMapper;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Qom;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Qom\JoinInterface;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Qom\SelectorInterface;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Qom\SourceInterface;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Qom\Statement;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Query;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Storage\Exception\BadConstraintException;
use ‪TYPO3\CMS\Extbase\Persistence\Generic\Storage\Exception\SqlErrorException;
use ‪TYPO3\CMS\Extbase\Persistence\QueryInterface;
use ‪TYPO3\CMS\Extbase\Service\CacheService;
use ‪TYPO3\CMS\Extbase\Service\EnvironmentService;
use ‪TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
 
class ‪Typo3DbBackend implements ‪BackendInterface, ‪SingletonInterface
{
    protected ‪$connectionPool;
 
    protected ‪$configurationManager;
 
    protected ‪$cacheService;
 
    protected ‪$environmentService;
 
    protected ‪$objectManager;
 
    protected ‪$hasPidColumn = [];
 
    public function ‪injectConfigurationManager(‪ConfigurationManagerInterface ‪$configurationManager): void
    {
        $this->configurationManager = ‪$configurationManager;
    }
 
    public function ‪injectCacheService(‪CacheService ‪$cacheService): void
    {
        $this->cacheService = ‪$cacheService;
    }
 
    public function ‪injectEnvironmentService(‪EnvironmentService ‪$environmentService): void
    {
        $this->environmentService = ‪$environmentService;
    }
 
    public function ‪injectObjectManager(‪ObjectManagerInterface ‪$objectManager): void
    {
        $this->objectManager = ‪$objectManager;
    }
 
    public function ‪__construct()
    {
        $this->connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
    }
 
    public function ‪addRow(string $tableName, array $fieldValues, bool $isRelation = false): int
    {
        if (isset($fieldValues['uid'])) {
            unset($fieldValues['uid']);
        }
        try {
            $connection = $this->connectionPool->getConnectionForTable($tableName);
 
            $types = [];
            $platform = $connection->getDatabasePlatform();
            if ($platform instanceof SQLServerPlatform) {
                // mssql needs to set proper PARAM_LOB and others to update fields
                $tableDetails = $connection->getSchemaManager()->listTableDetails($tableName);
                foreach ($fieldValues as $columnName => $columnValue) {
                    $types[$columnName] = $tableDetails->getColumn($columnName)->getType()->getBindingType();
                }
            }
 
            $connection->insert($tableName, $fieldValues, $types);
        } catch (DBALException $e) {
            throw new SqlErrorException($e->getPrevious()->getMessage(), 1470230766, $e);
        }
 
        $uid = 0;
        if (!$isRelation) {
            // Relation tables have no auto_increment column, so no retrieval must be tried.
            $uid = (int)$connection->lastInsertId($tableName);
            $this->‪clearPageCache($tableName, $uid);
        }
        return $uid;
    }
 
    public function ‪updateRow(string $tableName, array $fieldValues, bool $isRelation = false): void
    {
        if (!isset($fieldValues['uid'])) {
            throw new \InvalidArgumentException('The given row must contain a value for "uid".', 1476045164);
        }
 
        $uid = (int)$fieldValues['uid'];
        unset($fieldValues['uid']);
 
        try {
            $connection = $this->connectionPool->getConnectionForTable($tableName);
 
            $types = [];
            $platform = $connection->getDatabasePlatform();
            if ($platform instanceof SQLServerPlatform) {
                // mssql needs to set proper PARAM_LOB and others to update fields
                $tableDetails = $connection->getSchemaManager()->listTableDetails($tableName);
                foreach ($fieldValues as $columnName => $columnValue) {
                    $columnName = (string)$columnName;
                    $types[$columnName] = $tableDetails->getColumn($columnName)->getType()->getBindingType();
                }
            }
 
            $connection->update($tableName, $fieldValues, ['uid' => $uid], $types);
        } catch (DBALException $e) {
            throw new SqlErrorException($e->getPrevious()->getMessage(), 1470230767, $e);
        }
 
        if (!$isRelation) {
            $this->‪clearPageCache($tableName, $uid);
        }
    }
 
    public function ‪updateRelationTableRow(string $tableName, array $fieldValues): void
    {
        if (!isset($fieldValues['uid_local']) && !isset($fieldValues['uid_foreign'])) {
            throw new \InvalidArgumentException(
                'The given fieldValues must contain a value for "uid_local" and "uid_foreign".',
                1360500126
            );
        }
 
        $where = [];
        $where['uid_local'] = (int)$fieldValues['uid_local'];
        $where['uid_foreign'] = (int)$fieldValues['uid_foreign'];
        unset($fieldValues['uid_local']);
        unset($fieldValues['uid_foreign']);
 
        if (!empty($fieldValues['tablenames'])) {
            $where['tablenames'] = $fieldValues['tablenames'];
            unset($fieldValues['tablenames']);
        }
        if (!empty($fieldValues['fieldname'])) {
            $where['fieldname'] = $fieldValues['fieldname'];
            unset($fieldValues['fieldname']);
        }
 
        try {
            $this->connectionPool->getConnectionForTable($tableName)->update($tableName, $fieldValues, $where);
        } catch (DBALException $e) {
            throw new SqlErrorException($e->getPrevious()->getMessage(), 1470230768, $e);
        }
    }
 
    public function ‪removeRow(string $tableName, array $where, bool $isRelation = false): void
    {
        try {
            $this->connectionPool->getConnectionForTable($tableName)->delete($tableName, $where);
        } catch (DBALException $e) {
            throw new SqlErrorException($e->getPrevious()->getMessage(), 1470230769, $e);
        }
 
        if (!$isRelation && isset($where['uid'])) {
            $this->‪clearPageCache($tableName, (int)$where['uid']);
        }
    }
 
    public function ‪getMaxValueFromTable(string $tableName, array $where, string $columnName)
    {
        try {
            $queryBuilder = $this->connectionPool->getQueryBuilderForTable($tableName);
            $queryBuilder->getRestrictions()->removeAll();
            $queryBuilder
                ->select($columnName)
                ->from($tableName)
                ->orderBy($columnName, 'DESC')
                ->setMaxResults(1);
 
            foreach ($where as $fieldName => $value) {
                $queryBuilder->andWhere(
                    $queryBuilder->expr()->eq($fieldName, $queryBuilder->createNamedParameter($value, \PDO::PARAM_STR))
                );
            }
 
            $result = $queryBuilder->execute()->fetchColumn(0);
        } catch (DBALException $e) {
            throw new SqlErrorException($e->getPrevious()->getMessage(), 1470230770, $e);
        }
        return $result;
    }
 
    public function ‪getRowByIdentifier(string $tableName, array $where)
    {
        // todo: this method is not in use, consider removing it.
 
        try {
            $queryBuilder = $this->connectionPool->getQueryBuilderForTable($tableName);
            $queryBuilder->getRestrictions()->removeAll();
            $queryBuilder
                ->select('*')
                ->from($tableName);
 
            foreach ($where as $fieldName => $value) {
                $queryBuilder->andWhere(
                    $queryBuilder->expr()->eq($fieldName, $queryBuilder->createNamedParameter($value, \PDO::PARAM_STR))
                );
            }
 
            $row = $queryBuilder->execute()->fetch();
            return is_array($row) ? $row : false;
        } catch (DBALException $e) {
            throw new SqlErrorException($e->getPrevious()->getMessage(), 1470230771, $e);
        }
    }
 
    public function ‪getObjectDataByQuery(QueryInterface $query): array
    {
        $statement = $query->getStatement();
        // todo: remove instanceof checks as soon as getStatement() strictly returns Qom\Statement only
        if ($statement instanceof Statement
            && !$statement->getStatement() instanceof QueryBuilder
        ) {
            $rows = $this->‪getObjectDataByRawQuery($statement);
        } else {
            $queryParser = $this->objectManager->get(Typo3DbQueryParser::class);
            if ($statement instanceof Statement
                && $statement->getStatement() instanceof QueryBuilder
            ) {
                $queryBuilder = $statement->getStatement();
            } else {
                $queryBuilder = $queryParser->convertQueryToDoctrineQueryBuilder($query);
            }
            $selectParts = $queryBuilder->getQueryPart('select');
            if ($queryParser->isDistinctQuerySuggested() && !empty($selectParts)) {
                $selectParts[0] = 'DISTINCT ' . $selectParts[0];
                $queryBuilder->selectLiteral(...$selectParts);
            }
            if ($query->getOffset()) {
                $queryBuilder->setFirstResult($query->getOffset());
            }
            if ($query->getLimit()) {
                $queryBuilder->setMaxResults($query->getLimit());
            }
            try {
                $rows = $queryBuilder->execute()->fetchAll();
            } catch (DBALException $e) {
                throw new SqlErrorException($e->getPrevious()->getMessage(), 1472074485, $e);
            }
        }
 
        if (!empty($rows)) {
            $rows = $this->‪overlayLanguageAndWorkspace($query->getSource(), $rows, $query);
        }
 
        return $rows;
    }
 
    protected function ‪getObjectDataByRawQuery(Statement $statement): array
    {
        $realStatement = $statement->getStatement();
        $parameters = $statement->getBoundVariables();
 
        // The real statement is an instance of the Doctrine DBAL QueryBuilder, so fetching
        // this directly is possible
        if ($realStatement instanceof QueryBuilder) {
            try {
                $result = $realStatement->execute();
            } catch (DBALException $e) {
                throw new SqlErrorException($e->getPrevious()->getMessage(), 1472064721, $e);
            }
            $rows = $result->fetchAll();
        } elseif ($realStatement instanceof \Doctrine\DBAL\Statement) {
            try {
                $realStatement->execute($parameters);
            } catch (DBALException $e) {
                throw new SqlErrorException($e->getPrevious()->getMessage(), 1481281404, $e);
            }
            $rows = $realStatement->fetchAll();
        } else {
            // Do a real raw query. This is very stupid, as it does not allow to use DBAL's real power if
            // several tables are on different databases, so this is used with caution and could be removed
            // in the future
            try {
                $connection = $this->connectionPool->getConnectionByName(‪ConnectionPool::DEFAULT_CONNECTION_NAME);
                $statement = $connection->executeQuery($realStatement, $parameters);
            } catch (DBALException $e) {
                throw new SqlErrorException($e->getPrevious()->getMessage(), 1472064775, $e);
            }
 
            $rows = $statement->fetchAll();
        }
 
        return $rows;
    }
 
    public function ‪getObjectCountByQuery(QueryInterface $query): int
    {
        if ($query->getConstraint() instanceof Statement) {
            throw new BadConstraintException('Could not execute count on queries with a constraint of type TYPO3\\CMS\\Extbase\\Persistence\\Generic\\Qom\\Statement', 1256661045);
        }
 
        $statement = $query->getStatement();
        if ($statement instanceof Statement
            && !$statement->getStatement() instanceof QueryBuilder
        ) {
            $rows = $this->‪getObjectDataByQuery($query);
            $count = count($rows);
        } else {
            $queryParser  = $this->objectManager->get(Typo3DbQueryParser::class);
            $queryBuilder = $queryParser
                ->convertQueryToDoctrineQueryBuilder($query)
                ->resetQueryPart('orderBy');
 
            if ($queryParser->isDistinctQuerySuggested()) {
                $source = $queryBuilder->getQueryPart('from')[0];
                // Tablename is already quoted for the DBMS, we need to treat table and field names separately
                $tableName = $source['alias'] ?: $source['table'];
                $fieldName = $queryBuilder->quoteIdentifier('uid');
                $queryBuilder->resetQueryPart('groupBy')
                    ->selectLiteral(sprintf('COUNT(DISTINCT %s.%s)', $tableName, $fieldName));
            } else {
                $queryBuilder->count('*');
            }
 
            try {
                $count = $queryBuilder->execute()->fetchColumn(0);
            } catch (DBALException $e) {
                throw new SqlErrorException($e->getPrevious()->getMessage(), 1472074379, $e);
            }
            if ($query->getOffset()) {
                $count -= $query->getOffset();
            }
            if ($query->getLimit()) {
                $count = min($count, $query->getLimit());
            }
        }
        return (int)max(0, $count);
    }
 
    public function ‪getUidOfAlreadyPersistedValueObject(AbstractValueObject $object): ?int
    {
        $dataMapper = $this->objectManager->get(DataMapper::class);
        $dataMap = $dataMapper->getDataMap(get_class($object));
        $tableName = $dataMap->getTableName();
        $queryBuilder = $this->connectionPool->getQueryBuilderForTable($tableName);
        if ($this->environmentService->isEnvironmentInFrontendMode()) {
            $queryBuilder->setRestrictions(GeneralUtility::makeInstance(FrontendRestrictionContainer::class));
        }
        $whereClause = [];
        // loop over all properties of the object to exactly set the values of each database field
        $properties = $object->_getProperties();
        foreach ($properties as $propertyName => $propertyValue) {
            $propertyName = (string)$propertyName;
 
            // @todo We couple the Backend to the Entity implementation (uid, isClone); changes there breaks this method
            if ($dataMap->isPersistableProperty($propertyName) && $propertyName !== 'uid' && $propertyName !== 'pid' && $propertyName !== 'isClone') {
                $fieldName = $dataMap->getColumnMap($propertyName)->getColumnName();
                if ($propertyValue === null) {
                    $whereClause[] = $queryBuilder->expr()->isNull($fieldName);
                } else {
                    $whereClause[] = $queryBuilder->expr()->eq($fieldName, $queryBuilder->createNamedParameter($dataMapper->getPlainValue($propertyValue)));
                }
            }
        }
        $queryBuilder
            ->select('uid')
            ->from($tableName)
            ->where(...$whereClause);
 
        try {
            $uid = (int)$queryBuilder
                ->execute()
                ->fetchColumn(0);
            if ($uid > 0) {
                return $uid;
            }
            return null;
        } catch (DBALException $e) {
            throw new SqlErrorException($e->getPrevious()->getMessage(), 1470231748, $e);
        }
    }
 
    protected function ‪overlayLanguageAndWorkspace(SourceInterface $source, array $rows, QueryInterface $query, int $workspaceUid = null): array
    {
        $context = GeneralUtility::makeInstance(Context::class);
        if ($workspaceUid === null) {
            $workspaceUid = (int)$context->getPropertyFromAspect('workspace', 'id');
        } else {
            // A custom query is needed, so a custom context is cloned
            $context = clone $context;
            $context->setAspect('workspace', GeneralUtility::makeInstance(WorkspaceAspect::class, $workspaceUid));
        }
 
        $pageRepository = GeneralUtility::makeInstance(PageRepository::class, $context);
        if ($source instanceof SelectorInterface) {
            $tableName = $source->getSelectorName();
            $rows = $this->‪resolveMovedRecordsInWorkspace($tableName, $rows, $workspaceUid);
            return $this->‪overlayLanguageAndWorkspaceForSelect($tableName, $rows, $pageRepository, $query);
        }
        if ($source instanceof JoinInterface) {
            $tableName = $source->getRight()->getSelectorName();
            // Special handling of joined select is only needed when doing workspace overlays, which does not happen
            // in live workspace
            if ($workspaceUid === 0) {
                return $this->‪overlayLanguageAndWorkspaceForSelect($tableName, $rows, $pageRepository, $query);
            }
            return $this->‪overlayLanguageAndWorkspaceForJoinedSelect($tableName, $rows, $pageRepository, $query);
        }
        // No proper source, so we do not have a table name here
        // we cannot do an overlay and return the original rows instead.
        return $rows;
    }
 
    protected function ‪overlayLanguageAndWorkspaceForSelect(string $tableName, array $rows, ‪PageRepository $pageRepository, ‪QueryInterface $query): array
    {
        $overlaidRows = [];
        foreach ($rows as $row) {
            $row = $this->‪overlayLanguageAndWorkspaceForSingleRecord($tableName, $row, $pageRepository, $query);
            if ($row !== null && is_array($row)) {
                $overlaidRows[] = $row;
            }
        }
        return $overlaidRows;
    }
 
    protected function ‪overlayLanguageAndWorkspaceForJoinedSelect(string $tableName, array $rows, ‪PageRepository $pageRepository, ‪QueryInterface $query): array
    {
        // No valid rows, so this is skipped
        if (!isset($rows[0]['uid'])) {
            return $rows;
        }
        // First, find out the fields that belong to the "main" selected table which is defined by TCA, and take the first
        // record to find out all possible fields in this database table
        $fieldsOfMainTable = $pageRepository->‪getRawRecord($tableName, $rows[0]['uid']);
        $overlaidRows = [];
        foreach ($rows as $row) {
            $mainRow = array_intersect_key($row, $fieldsOfMainTable);
            $joinRow = array_diff_key($row, $mainRow);
            $mainRow = $this->‪overlayLanguageAndWorkspaceForSingleRecord($tableName, $mainRow, $pageRepository, $query);
            if ($mainRow !== null && is_array($mainRow)) {
                $overlaidRows[] = array_replace($joinRow, $mainRow);
            }
        }
        return $overlaidRows;
    }
 
    protected function ‪overlayLanguageAndWorkspaceForSingleRecord(string $tableName, array $row, PageRepository $pageRepository, QueryInterface $query)
    {
        $querySettings = $query->getQuerySettings();
        // If current row is a translation select its parent
        $languageOfCurrentRecord = 0;
        if (‪$GLOBALS['TCA'][$tableName]['ctrl']['languageField'] ?? null
            && $row[‪$GLOBALS['TCA'][$tableName]['ctrl']['languageField']] ?? 0
        ) {
            $languageOfCurrentRecord = $row[‪$GLOBALS['TCA'][$tableName]['ctrl']['languageField']];
        }
        if ($querySettings->getLanguageOverlayMode()
            && $languageOfCurrentRecord > 0
            && isset(‪$GLOBALS['TCA'][$tableName]['ctrl']['transOrigPointerField'])
            && $row[‪$GLOBALS['TCA'][$tableName]['ctrl']['transOrigPointerField']] > 0
        ) {
            $row = $pageRepository->getRawRecord(
                $tableName,
                (int)$row[‪$GLOBALS['TCA'][$tableName]['ctrl']['transOrigPointerField']]
            );
        }
        // Handle workspace overlays
        $pageRepository->versionOL($tableName, $row, true);
        if (is_array($row) && $querySettings->getLanguageOverlayMode()) {
            if ($tableName === 'pages') {
                $row = $pageRepository->getPageOverlay($row, $querySettings->getLanguageUid());
            } else {
                // todo: remove type cast once getLanguageUid strictly returns an int
                $languageUid = (int)$querySettings->getLanguageUid();
                if (!$querySettings->getRespectSysLanguage()
                    && $languageOfCurrentRecord > 0
                    && (!$query instanceof Query || !$query->getParentQuery())
                ) {
                    // No parent query means we're processing the aggregate root.
                    // respectSysLanguage is false which means that records returned by the query
                    // might be from different languages (which is desired).
                    // So we must set the language used for overlay to the language of the current record
                    $languageUid = $languageOfCurrentRecord;
                }
                if (isset(‪$GLOBALS['TCA'][$tableName]['ctrl']['transOrigPointerField'])
                    && $row[‪$GLOBALS['TCA'][$tableName]['ctrl']['transOrigPointerField']] > 0
                    && $languageOfCurrentRecord > 0
                ) {
                    // Force overlay by faking default language record, as getRecordOverlay can only handle default language records
                    $row['uid'] = $row[‪$GLOBALS['TCA'][$tableName]['ctrl']['transOrigPointerField']];
                    $row[‪$GLOBALS['TCA'][$tableName]['ctrl']['languageField']] = 0;
                }
                $row = $pageRepository->getRecordOverlay($tableName, $row, $languageUid, (string)$querySettings->getLanguageOverlayMode());
            }
        }
        return $row;
    }
 
    protected function ‪resolveMovedRecordsInWorkspace(string $tableName, array $rows, int $workspaceUid): array
    {
        if ($workspaceUid === 0) {
            return $rows;
        }
        if (!‪BackendUtility::isTableWorkspaceEnabled($tableName)) {
            return $rows;
        }
        if (count($rows) !== 1) {
            return $rows;
        }
        $queryBuilder = $this->connectionPool->getQueryBuilderForTable($tableName);
        $queryBuilder->getRestrictions()->removeAll();
        $movePlaceholder = $queryBuilder
            ->select('*')
            ->from($tableName)
            ->where(
                $queryBuilder->expr()->eq('t3ver_state', $queryBuilder->createNamedParameter(‪VersionState::MOVE_PLACEHOLDER, \PDO::PARAM_INT)),
                $queryBuilder->expr()->eq('t3ver_wsid', $queryBuilder->createNamedParameter($workspaceUid, \PDO::PARAM_INT)),
                $queryBuilder->expr()->eq('t3ver_move_id', $queryBuilder->createNamedParameter($rows[0]['uid'], \PDO::PARAM_INT))
            )
            ->setMaxResults(1)
            ->execute()
            ->fetchAll();
        if (!empty($movePlaceholder)) {
            $rows = $movePlaceholder;
        }
        return $rows;
    }
 
    protected function ‪clearPageCache(string $tableName, int $uid): void
    {
        $frameworkConfiguration = $this->configurationManager->getConfiguration(‪ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK);
        if (empty($frameworkConfiguration['persistence']['enableAutomaticCacheClearing'])) {
            return;
        }
        $pageIdsToClear = [];
        $storagePage = null;
 
        // As determining the table columns is a costly operation this is done only once per table during runtime and cached then
        if (!isset($this->hasPidColumn[$tableName])) {
            $columns = $this->connectionPool
                ->getConnectionForTable($tableName)
                ->getSchemaManager()
                ->listTableColumns($tableName);
            $this->hasPidColumn[$tableName] = array_key_exists('pid', $columns);
        }
 
        $tsfe = $this->‪getTSFE();
        if ($this->hasPidColumn[$tableName]) {
            $queryBuilder = $this->connectionPool->getQueryBuilderForTable($tableName);
            $queryBuilder->getRestrictions()->removeAll();
            $result = $queryBuilder
                ->select('pid')
                ->from($tableName)
                ->where(
                    $queryBuilder->expr()->eq(
                        'uid',
                        $queryBuilder->createNamedParameter($uid, \PDO::PARAM_INT)
                    )
                )
                ->execute();
            if ($row = $result->fetch()) {
                $storagePage = $row['pid'];
                $pageIdsToClear[] = $storagePage;
            }
        } elseif (isset($tsfe)) {
            // No PID column - we can do a best-effort to clear the cache of the current page if in FE
            $storagePage = $tsfe->id;
            $pageIdsToClear[] = $storagePage;
        }
        if ($storagePage === null) {
            return;
        }
 
        $pageTS = ‪BackendUtility::getPagesTSconfig($storagePage);
        if (isset($pageTS['TCEMAIN.']['clearCacheCmd'])) {
            $clearCacheCommands = ‪GeneralUtility::trimExplode(',', strtolower($pageTS['TCEMAIN.']['clearCacheCmd']), true);
            $clearCacheCommands = array_unique($clearCacheCommands);
            foreach ($clearCacheCommands as $clearCacheCommand) {
                if (‪MathUtility::canBeInterpretedAsInteger($clearCacheCommand)) {
                    $pageIdsToClear[] = $clearCacheCommand;
                }
            }
        }
 
        foreach ($pageIdsToClear as $pageIdToClear) {
            $this->cacheService->getPageIdStack()->push($pageIdToClear);
        }
    }
 
    protected function ‪getTSFE(): ?TypoScriptFrontendController
    {
        return ‪$GLOBALS['TSFE'] ?? null;
    }
}