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<?php
namespace Elastica\Filter;
use Elastica\Exception\InvalidException;
/**
* Terms filter
*
* @category Xodoa
* @package Elastica
* @author Nicolas Ruflin <spam@ruflin.com>
* @link http://www.elasticsearch.org/guide/reference/query-dsl/terms-filter.html
*/
class Terms extends AbstractFilter
{
/**
* Terms
*
* @var array Terms
*/
protected $_terms = array();
/**
* Params
*
* @var array Params
*/
protected $_params = array();
/**
* Terms key
*
* @var string Terms key
*/
protected $_key = '';
/**
* Creates terms filter
*
* @param string $key Terms key
* @param array $terms Terms values
*/
public function __construct($key = '', array $terms = array())
{
$this->setTerms($key, $terms);
}
/**
* Sets key and terms for the filter
*
* @param string $key Terms key
* @param array $terms Terms for the query.
* @return \Elastica\Filter\Terms
*/
public function setTerms($key, array $terms)
{
$this->_key = $key;
$this->_terms = array_values($terms);
return $this;
}
/**
* Set the lookup parameters for this filter
* @param string $key terms key
* @param string|\Elastica\Type $type document type from which to fetch the terms values
* @param string $id id of the document from which to fetch the terms values
* @param string $path the field from which to fetch the values for the filter
* @param string|array|\Elastica\Index $options An array of options or the index from which to fetch the terms values. Defaults to the current index.
* @return \Elastica\Filter\Terms Filter object
*/
public function setLookup($key, $type, $id, $path, $options = array())
{
$this->_key = $key;
if ($type instanceof \Elastica\Type) {
$type = $type->getName();
}
$this->_terms = array(
'type' => $type,
'id' => $id,
'path' => $path
);
$index = $options;
if(is_array($options)) {
if(isset($options['index'])) {
$index = $options['index'];
unset($options['index']);
}
$this->_terms = array_merge($options, $this->_terms);
}
if (!is_null($index)) {
if ($index instanceof \Elastica\Index) {
$index = $index->getName();
}
$this->_terms['index'] = $index;
}
return $this;
}
/**
* Adds an additional term to the query
*
* @param string $term Filter term
* @return \Elastica\Filter\Terms Filter object
*/
public function addTerm($term)
{
$this->_terms[] = $term;
return $this;
}
/**
* Converts object to an array
*
* @see \Elastica\Filter\AbstractFilter::toArray()
* @throws \Elastica\Exception\InvalidException
* @return array data array
*/
public function toArray()
{
if (empty($this->_key)) {
throw new InvalidException('Terms key has to be set');
}
$this->_params[$this->_key] = $this->_terms;
return array('terms' => $this->_params);
}
}
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