20         $tree = $this->_groupByNs($tab);
21         $trimmedTree = $this->_getTrimmedTree($tree);
30     function _orderTree($tree) {  argument
42         $this->_sorter->sort($tree->children);
44         foreach($tree->children as $subTree){
49         return $tree;
53         $tree = new NspagesTreeNsNode(':');
55             $this->_fillTree($tree, $this->_getNS($item), $item, '', ':');
57         return $tree;
71     private function _getTrimmedTree($tree){  argument
72         if ($tree->id === $this->rootNS){
73             return $tree;
75             if (is_null($tree->children)) {
78                 return $tree;
80             $firstAndOnlyChild = reset($tree->children);
140     private function _fillTree($tree, $keys, $item, $parentId, $myNs) {  argument
143                 $tree->self = $item;
146                     $tree->self = $item;
148                     if (!isset($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, $item['ns']);
173     private function _printTree($tree) {  argument
176         foreach($tree->children as $subTree){
187     private function _printSubTree($tree, $level) {  argument
188         $this->_printElementOpen($tree->self, $level);
189         if ( !is_null($tree->self) ){
190             $this->_printElementContent($tree->self, $level);
192           $this->renderer->doc .= '<div>' . $tree->id  . '</div>';
195         $hasInnerData = !empty($tree->children);
199         foreach($tree->children as $subTree){