42         $this->_sorter->sort($tree->children);
44         foreach($tree->children as $subTree){
75             if (is_null($tree->children)) {
80             $firstAndOnlyChild = reset($tree->children);
148                     if (!isset($tree->children[$item['id']])) {
150                             $tree->children[$item['id']] = new NspagesTreeNsNode($item['id']);
151                             $tree->children[$item['id']]->self = $item;
153                             $tree->children[$item['id']] = $item;
156                         $tree->children[$item['id']]->self = $item;
164             if (!array_key_exists($nsKey, $tree->children)){
166                 $tree->children[$nsKey] = $node;
169             $this->_fillTree($tree->children[$nsKey], $keys, $item, $currentId, $item['ns']);
176         foreach($tree->children as $subTree){
195         $hasInnerData = !empty($tree->children);
199         foreach($tree->children as $subTree){
222     public $children = array();  variable in NspagesTreeNsNode