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ClosestDocumentViewHelper.php
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ClosestDocumentViewHelper.php
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<?php
namespace Neos\Neos\ViewHelpers\Node;
/*
* This file is part of the Neos.Neos package.
*
* (c) Contributors of the Neos Project - www.neos.io
*
* This package is Open Source Software. For the full copyright and license
* information, please view the LICENSE file which was distributed with this
* source code.
*/
use Neos\FluidAdaptor\Core\ViewHelper\AbstractViewHelper;
use Neos\ContentRepository\Domain\Model\NodeInterface;
use Neos\Eel\FlowQuery\FlowQuery;
/**
* ViewHelper to find the closest document node to a given node
*/
class ClosestDocumentViewHelper extends AbstractViewHelper
{
/**
* Initialize the arguments.
*
* @return void
* @throws \Neos\FluidAdaptor\Core\ViewHelper\Exception
*/
public function initializeArguments()
{
parent::initializeArguments();
$this->registerArgument('node', NodeInterface::class, 'Node', true);
}
/**
* @return NodeInterface
* @throws \Neos\Eel\Exception
*/
public function render()
{
$flowQuery = new FlowQuery([$this->arguments['node']]);
return $flowQuery->closest('[instanceof Neos.Neos:Document]')->get(0);
}
}