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PropertyOperation.php
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PropertyOperation.php
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<?php
namespace Neos\ContentRepository\Eel\FlowQueryOperations;
/*
* This file is part of the Neos.ContentRepository 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\ContentRepository\Domain\Projection\Content\NodeInterface;
use Neos\Eel\FlowQuery\FlowQuery;
use Neos\Eel\FlowQuery\FlowQueryException;
use Neos\Eel\FlowQuery\Operations\AbstractOperation;
use Neos\Utility\ObjectAccess;
/**
* Used to access properties of a ContentRepository Node. If the property mame is
* prefixed with _, internal node properties like start time, end time,
* hidden are accessed.
*/
class PropertyOperation extends AbstractOperation
{
/**
* {@inheritdoc}
*
* @var string
*/
protected static $shortName = 'property';
/**
* {@inheritdoc}
*
* @var integer
*/
protected static $priority = 100;
/**
* {@inheritdoc}
*
* @var boolean
*/
protected static $final = true;
/**
* {@inheritdoc}
*
* We can only handle ContentRepository Nodes.
*
* @param array $context $context onto which this operation should be applied (array or array-like object)
* @return boolean
*/
public function canEvaluate($context)
{
return (isset($context[0]) && ($context[0] instanceof NodeInterface));
}
/**
* {@inheritdoc}
*
* @param FlowQuery $flowQuery the FlowQuery object
* @param array $arguments the arguments for this operation
* @return mixed
* @throws FlowQueryException
*/
public function evaluate(FlowQuery $flowQuery, array $arguments)
{
if (!isset($arguments[0]) || empty($arguments[0])) {
throw new FlowQueryException('property() does not support returning all attributes yet', 1332492263);
} else {
$context = $flowQuery->getContext();
$propertyPath = $arguments[0];
if (!isset($context[0])) {
return null;
}
$element = $context[0];
if ($propertyPath[0] === '_') {
return ObjectAccess::getPropertyPath($element, substr($propertyPath, 1));
} else {
/* @var NodeInterface $element */
return $element->getProperty($propertyPath);
}
}
}
}