Newscoop\NewscoopBundle\Entity\Repository\TopicRepository::childrenQuery PHP Метод

    public function childrenQuery($node = null, $direct = false, $sortByField = null, $direction = 'ASC', $include = false)
    {
        $q = parent::childrenQuery($node, $direct, $sortByField, $direction, $include);
        if ($this->onChildrenQuery instanceof Closure) {
            $c =& $this->onChildrenQuery;
            $c($q);
        }
        return $q;
    }