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<?php
namespace Elastica\Filter;
use Elastica\Exception\InvalidException;
/**
* Terms filter.
*
* @author Nicolas Ruflin <spam@ruflin.com>
*
* @link http://www.elastic.co/guide/en/elasticsearch/reference/current/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 $this
*/
public function setTerms($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 $this
*/
public function setLookup($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 $this
*/
public function addTerm($term)
{
$this->_terms[] = $term;
return $this;
}
/**
* Converts object to an array.
*
* @see \Elastica\Filter\AbstractFilter::toArray()
*
* @throws \Elastica\Exception\InvalidException
*
* @return array
*/
public function toArray()
{
if (empty($this->_key)) {
throw new InvalidException('Terms key has to be set');
}
$this->_params[$this->_key] = $this->_terms;
return array('terms' => $this->_params);
}
/**
* Set execution mode.
*
* @param string $execution Options: "bool", "and", "or", "plain" or "fielddata"
*
* @return $this
*/
public function setExecution($execution)
{
return $this->setParam('execution', (string) $execution);
}
}
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