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FirstOperation.php
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FirstOperation.php
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<?php
namespace Neos\Eel\FlowQuery\Operations;
/*
* This file is part of the Neos.Eel 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\Eel\FlowQuery\FlowQuery;
/**
* Get the first element inside the context.
*/
class FirstOperation extends AbstractOperation
{
/**
* {@inheritdoc}
*
* @var string
*/
protected static $shortName = 'first';
/**
* {@inheritdoc}
*
* @param FlowQuery $flowQuery the FlowQuery object
* @param array $arguments Ignored for this operation
* @return void
*/
public function evaluate(FlowQuery $flowQuery, array $arguments)
{
$context = $flowQuery->getContext();
if (isset($context[0])) {
$flowQuery->setContext([$context[0]]);
} else {
$flowQuery->setContext([]);
}
}
}