search_core/Classes/DataProcessing/RemoveProcessor.php

<?php
namespace Codappix\SearchCore\DataProcessing;

/*
 * Copyright (C) 2017  Daniel Siepmann <coding@daniel-siepmann.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

use TYPO3\CMS\Core\Utility\GeneralUtility;

/**
 * Removes fields from record.
 */
class RemoveProcessor implements ProcessorInterface
{
    public function processRecord(array $record, array $configuration) : array
    {
        if (!isset($configuration['fields'])) {
            return $record;
        }

        foreach (GeneralUtility::trimExplode(',', $configuration['fields'], true) as $field) {
            if (isset($record[$field])) {
                unset($record[$field]);
            }
        }

        return $record;
    }
}