ValidationResultsViewHelper.php

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<?php
 
declare(strict_types=1);
 
/*
 * 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!
 */
 
namespace ‪TYPO3\CMS\Fluid\ViewHelpers\Form;
 
use ‪TYPO3\CMS\Extbase\Mvc\ExtbaseRequestParameters;
use ‪TYPO3\CMS\Fluid\Core\Rendering\RenderingContext;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\Variables\ScopedVariableProvider;
use TYPO3Fluid\Fluid\Core\Variables\StandardVariableProvider;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
 
final class ‪ValidationResultsViewHelper extends AbstractViewHelper
{
    use CompileWithRenderStatic;
 
    protected ‪$escapeOutput = false;
 
    public function ‪initializeArguments(): void
    {
        $this->registerArgument('for', 'string', 'The name of the error name (e.g. argument name or property name). This can also be a property path (like blog.title), and will then only display the validation errors of that property.', false, '');
        $this->registerArgument('as', 'string', 'The name of the variable to store the current error', false, 'validationResults');
    }
 
    public static function ‪renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
    {
        $for = $arguments['for'];
        $as = $arguments['as'];
 
        $extbaseRequestParameters = $renderingContext->getRequest()->getAttribute('extbase');
        $validationResults = $extbaseRequestParameters->getOriginalRequestMappingResults();
        if ($validationResults !== null && $for !== '') {
            $validationResults = $validationResults->forProperty($for);
        }
 
        $variableProvider = new ScopedVariableProvider($renderingContext->getVariableProvider(), new StandardVariableProvider([$as => $validationResults]));
        $renderingContext->setVariableProvider($variableProvider);
 
        ‪$output = $renderChildrenClosure();
 
        $renderingContext->setVariableProvider($variableProvider->getGlobalVariableProvider());
 
        return ‪$output;
    }
}