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<?php
namespace Elastica\Aggregation;
use Elastica\Filter\AbstractFilter;
/**
* Class Filters.
*
* @link http://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-filters-aggregation.html
*/
class Filters extends AbstractAggregation
{
/**
* Add a filter.
*
* If a name is given, it will be added as a key, otherwise considered as an anonymous filter
*
* @param AbstractFilter $filter
* @param string $name
*
* @return $this
*/
public function addFilter(AbstractFilter $filter, $name = '')
{
if (empty($name)) {
$filterArray[] = $filter->toArray();
} else {
$filterArray[$name] = $filter->toArray();
}
return $this->addParam('filters', $filterArray);
}
/**
* @return array
*/
public function toArray()
{
$array = array();
$filters = $this->getParam('filters');
foreach ($filters as $filter) {
// Detect between anonymous filters and named ones
$key = key($filter);
if (is_string($key)) {
$array['filters']['filters'][$key] = current($filter);
} else {
$array['filters']['filters'][] = current($filter);
}
}
if ($this->_aggs) {
$array['aggs'] = $this->_aggs;
}
return $array;
}
}
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