public function childrenQueryBuilder(NavigationNode $node = NULL, $qbHook = NULL)
{
$qb = $this->createQueryBuilder('node');
if ($node) {
$qb->where($qb->expr()->lt('node.rgt', $node->getRgt()))->andWhere($qb->expr()->gt('node.lft', $node->getLft()));
$rootId = $node->getRoot();
$qb->andWhere($rootId === NULL ? $qb->expr()->isNull('node.root') : $qb->expr()->eq('node.root', is_string($rootId) ? $qb->expr()->literal($rootId) : $rootId));
}
// context
$qb->andWhere('node.context = :context')->setParameter('context', $this->context);
$qb->orderBy('node.lft', 'ASC');
if (isset($qbHook)) {
$qbHook($qb);
}
return $qb;
}
