/**
* Get root nodes
* @return array
*/
public function getRootNodes()
{
$filter = new DoctrineSearchCondition();
$filter->levelEqualsTo(0);
$order = new DoctrineSelectOrder();
$order->byLeftAscending();
$rootNodes = $this->nestedSetRepository->search($filter, $order);
return $rootNodes;
}
/**
* Create search condition object
* @return SearchCondition\DoctrineSearchCondition
*/
public function createSearchCondition()
{
$searchCondition = new SearchCondition\DoctrineSearchCondition();
$searchCondition->setAdditionalCondition($this->getAdditionalCondition());
return $searchCondition;
}
