QueryFactory.php

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<?php
namespace TYPO3\CMS\Extbase\Persistence\Generic;

/*
 * 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!
 */

class QueryFactory implements QueryFactoryInterface, \TYPO3\CMS\Core\SingletonInterface
{
    protected $objectManager;

    protected $configurationManager;

    protected $dataMapper;

    public function injectObjectManager(\TYPO3\CMS\Extbase\Object\ObjectManagerInterface $objectManager)
    {
        $this->objectManager = $objectManager;
    }

    public function injectConfigurationManager(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface $configurationManager)
    {
        $this->configurationManager = $configurationManager;
    }

    public function injectDataMapper(\TYPO3\CMS\Extbase\Persistence\Generic\Mapper\DataMapper $dataMapper)
    {
        $this->dataMapper = $dataMapper;
    }

    public function create($className)
    {
        $query = $this->objectManager->get(\TYPO3\CMS\Extbase\Persistence\QueryInterface::class, $className);
        $querySettings = $this->objectManager->get(\TYPO3\CMS\Extbase\Persistence\Generic\QuerySettingsInterface::class);

        $dataMap = $this->dataMapper->getDataMap($className);
        if ($dataMap->getIsStatic() || $dataMap->getRootLevel()) {
            $querySettings->setRespectStoragePage(false);
        }

        $frameworkConfiguration = $this->configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK);
        $querySettings->setStoragePageIds(\TYPO3\CMS\Core\Utility\GeneralUtility::intExplode(',', $frameworkConfiguration['persistence']['storagePid']));
        if ($querySettings instanceof Typo3QuerySettings) {
            $querySettings->useQueryCache($frameworkConfiguration['persistence']['useQueryCache']);
        }
        $query->setQuerySettings($querySettings);
        return $query;
    }
}