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<?php
namespace Elastica\Facet;
/**
* Implements the Date Histogram facet.
*
* @category Xodoa
* @package Elastica
* @author Raul Martinez Jr <juneym@gmail.com>
* @link http://www.elasticsearch.org/guide/reference/api/search/facets/date-histogram-facet.html
* @link https://github.com/elasticsearch/elasticsearch/issues/591
*/
class DateHistogram extends Histogram
{
/**
* Set the time_zone parameter
*
* @param string $tzOffset
* @return \Elastica\Facet\DateHistogram
*/
public function setTimezone($tzOffset)
{
return $this->setParam('time_zone', $tzOffset);
}
/**
* Creates the full facet definition, which includes the basic
* facet definition of the parent.
*
* @see \Elastica\Facet\AbstractFacet::toArray()
* @throws \Elastica\Exception\InvalidException When the right fields haven't been set.
* @return array
*/
public function toArray()
{
/**
* Set the range in the abstract as param.
*/
$this->_setFacetParam('date_histogram', $this->_params);
return $this->_facet;
}
}
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