9.5/_root_level_restriction_8php_source.html

<?php

declare(strict_types = 1);

namespace ‪TYPO3\CMS\Core\Database\Query\Restriction;


/*

 * 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!

 */


use ‪TYPO3\CMS\Core\Database\Query\Expression\CompositeExpression;

use ‪TYPO3\CMS\Core\Database\Query\Expression\ExpressionBuilder;


class ‪RootLevelRestriction implements ‪QueryRestrictionInterface

{

    protected ‪$tableNames;


    public function ‪__construct(array ‪$tableNames = [])

    {

        $this->tableNames = ‪$tableNames;

    }


    public function ‪buildExpression(array $queriedTables, ‪ExpressionBuilder $expressionBuilder): ‪CompositeExpression

    {

        $constraints = [];

        foreach ($queriedTables as $tableAlias => $tableName) {

            if (empty($this->tableNames) || in_array($tableAlias, $this->tableNames, true)) {

                $constraints[] = $expressionBuilder->‪eq(

                    $tableAlias . '.pid',

                    0

                );

            }

        }

        return $expressionBuilder->‪andX(...$constraints);

    }

}