DeleteLinkViewHelper.php

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<?php
namespace TYPO3\CMS\SysNote\ViewHelpers;

/*
 * 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\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3\CMS\Fluid\Core\ViewHelper\Facets\CompilableInterface;

class DeleteLinkViewHelper extends AbstractViewHelper implements CompilableInterface
{
    public function render($id)
    {
        return static::renderStatic(
            array(
                'id' => $id
            ),
            $this->buildRenderChildrenClosure(),
            $this->renderingContext
        );
    }

    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
    {
        $urlParameters = [
            'cmd[sys_note][' . $arguments['id'] . '][delete]' => 1,
            'redirect' => GeneralUtility::getIndpEnv('REQUEST_URI')
        ];
        $url = BackendUtility::getModuleUrl('tce_db', $urlParameters);
        return htmlspecialchars($url);
    }
}