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<?php
namespace Elastica\Aggregation;
/**
* Reversed Nested Aggregation
*
* @package Elastica\Aggregation
* @link http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-aggregations-bucket-reverse-nested-aggregation.html
*/
class ReverseNested extends AbstractAggregation
{
/**
* @param string $name The name of this aggregation
* @param string $path Optional path to the nested object for this aggregation. Defaults to the root of the main document.
*/
public function __construct($name, $path = null)
{
parent::__construct($name);
if ($path !== null) {
$this->setPath($path);
}
}
/**
* Set the nested path for this aggregation
*
* @param string $path
* @return ReverseNested
*/
public function setPath($path)
{
return $this->setParam("path", $path);
}
/**
* {@inheritDoc}
*/
public function toArray()
{
$array = parent::toArray();
// ensure we have an object for the reverse_nested key.
// if we don't have a path, then this would otherwise get encoded as an empty array, which is invalid.
$array['reverse_nested'] = (object)$array['reverse_nested'];
return $array;
}
}
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