Cake\ElasticSearch\FilterBuilder::hasChild PHP 메소드

Accepts a query and the child type to run against, and results in parent documents that have child docs matching the query.

또한 보기: http://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-has-child-filter.html

public hasChild ( string \| Query \| Elastica\Filter\AbstractFilter $query, string $type ) : Elastica\Filter\HasChild
$query	string \| Elastica\Query \| Elastica\Filter\AbstractFilter	The filtering conditions.
$type	string	The child type to query against.
리턴	Elastica\Filter\HasChild

    public function hasChild($query, $type)
    {
        return new Filter\HasChild($query, $type);
    }

FilterBuilder