ContentObjectArrayContentObject.php

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<?php
namespace TYPO3\CMS\Frontend\ContentObject;

/*
 * 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\TimeTracker\TimeTracker;

class ContentObjectArrayContentObject extends AbstractContentObject
{
    public function render($conf = [])
    {
        if (empty($conf)) {
            $this->getTimeTracker()->setTSlogMessage('No elements in this content object array (COBJ_ARRAY, COA).', 2);
            return '';
        }
        if (!empty($conf['if.']) && !$this->cObj->checkIf($conf['if.'])) {
            return '';
        }

        $this->cObj->includeLibs($conf);
        $content = $this->cObj->cObjGet($conf);
        $wrap = isset($conf['wrap.']) ? $this->cObj->stdWrap($conf['wrap'], $conf['wrap.']) : $conf['wrap'];
        if ($wrap) {
            $content = $this->cObj->wrap($content, $wrap);
        }
        if (isset($conf['stdWrap.'])) {
            $content = $this->cObj->stdWrap($content, $conf['stdWrap.']);
        }
        return $content;
    }

    protected function getTimeTracker()
    {
        return $GLOBALS['TT'];
    }
}