/**
* @param Tree $node
* @param Tree|null $parent
* @param integer|null $position
* @return boolean
*/
protected function saveNode($node, $parent = null, $position = null)
{
if (!empty($parent)) {
$parent = $this->findModel($parent);
return $node->appendTo($parent, false);
} else {
return $node->makeRoot(false);
}
}
/**
* @param Tree|NestedSetsBehavior $node
* @param array $items
* @return TreeRecursiveIterator
*/
public static function buildNodeTree($node, $items = [])
{
$items = $items ?: $node->children()->all();
$tree = self::buildTree($items, $node->{$node->leftAttribute}, $node->{$node->rightAttribute});
return $tree;
}