/**
* gets next sibling or null
*
* @return Node
*/
public function getNextSibling()
{
// If parent and children are already loaded, avoid database query
if ($this->parent !== null && ($children = $this->parent->internalGetChildren()) !== null) {
for ($i = 0; $i < count($children); $i++) {
if ($children[$i] == $this) {
return $i + 1 >= count($children) ? null : $children[$i + 1];
}
}
// @codeCoverageIgnoreStart
}
// @codeCoverageIgnoreEnd
$qb = $this->getManager()->getConfiguration()->getBaseQueryBuilder();
$alias = $this->getManager()->getConfiguration()->getQueryBuilderAlias();
$qb->andWhere("{$alias}." . $this->getLeftFieldName() . " = :lft1")->setParameter('lft1', $this->getRightValue() + 1);
if ($this->hasManyRoots()) {
$qb->andWhere("{$alias}." . $this->getRootFieldName() . " = :root")->setParameter('root', $this->getRootValue());
}
$q = $qb->getQuery();
if ($this->getManager()->getConfiguration()->isQueryHintSet()) {
$q = $this->getManager()->addHintToQuery($q);
}
$results = $q->getResult();
if (!$results) {
return null;
}
return $this->getManager()->wrapNode($results[0]);
}
