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<?php
namespace Elastica\Query;
use Elastica\Exception\InvalidException;
/**
* Bool query.
*
* @author Nicolas Ruflin <spam@ruflin.com>
*
* @link http://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html
*/
class BoolQuery extends AbstractQuery
{
/**
* Add should part to query.
*
* @param \Elastica\Query\AbstractQuery|array $args Should query
*
* @return $this
*/
public function addShould($args)
{
return $this->_addQuery('should', $args);
}
/**
* Add must part to query.
*
* @param \Elastica\Query\AbstractQuery|array $args Must query
*
* @return $this
*/
public function addMust($args)
{
return $this->_addQuery('must', $args);
}
/**
* Add must not part to query.
*
* @param \Elastica\Query\AbstractQuery|array $args Must not query
*
* @return $this
*/
public function addMustNot($args)
{
return $this->_addQuery('must_not', $args);
}
/**
* Adds a query to the current object.
*
* @param string $type Query type
* @param \Elastica\Query\AbstractQuery|array $args Query
*
* @throws \Elastica\Exception\InvalidException If not valid query
*
* @return $this
*/
protected function _addQuery($type, $args)
{
if ($args instanceof AbstractQuery) {
$args = $args->toArray();
}
if (!is_array($args)) {
throw new InvalidException('Invalid parameter. Has to be array or instance of Elastica\Query\AbstractQuery');
}
return $this->addParam($type, $args);
}
/**
* Sets boost value of this query.
*
* @param float $boost Boost value
*
* @return $this
*/
public function setBoost($boost)
{
return $this->setParam('boost', $boost);
}
/**
* Set the minimum number of of should match.
*
* @param int $minimumNumberShouldMatch Should match minimum
*
* @return $this
*/
public function setMinimumNumberShouldMatch($minimumNumberShouldMatch)
{
return $this->setParam('minimum_number_should_match', $minimumNumberShouldMatch);
}
/**
* Converts array to an object in case no queries are added.
*
* @return array
*/
public function toArray()
{
if (empty($this->_params)) {
$this->_params = new \stdClass();
}
return parent::toArray();
}
}
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