Getting nested set model into a but hiding “closed” subtrees

Question

Based on Getting a modified preorder tree traversal model (nested set) into a

One of answers gave right code to display full tree. What i need is to alway

Answer 1

Based on answer by satrun77. I created a helper for symfony + doctrine + nestedset (http://www.doctrine-project.org/projects/orm/1.2/docs/manual/hierarchical-data/en):

function render_tree_html_list($nodes, Doctrine_Record $current_node, $render = true) {
    $html = '';
    $current_node_level = $current_node->getLevel();
    $counter = 0;
    $found = false;
    $nextSibling = false;

    foreach ($nodes as $i => $node):
        $node_level = $node->getLevel();
        $node_name = $node->getTitulo();
        $node_id = $node->getId();

        if ($current_node !== false) {
            if ($node_level == 0) {

                if ($node->getLft() <= $current_node->getLft() && $node->getRgt() >= $current_node->getRgt()) {
                    // selected root item
                    $root = $node;
                }
            } else if (!isset($root)) {
                // skip all items that are not under the selected root
                continue;
            } else {
                // when selected root is found

                $isInRange = ($root->getLft() <= $node->getLft() && $root->getRgt() >= $node->getRgt());
                if (!$isInRange) {
                    // skip all of the items that are not in range of the selected root
                    continue;
                } else if ($current_node->getLft() && $node->getLft() == $current_node->getLft()) {
                    // selected item reached
                    $found = true;
                    $current_node = $node;
                } else if ($nextSibling !== false && $nextSibling->getLevel() < $node->getLevel()) {

                    // if we have siblings after the selected item
                    // skip any other childerns in the same range or the selected root item
                    continue;
                } else if ($found && $node_level == $node->getLevel()) {
                    // siblings after the selected item
                    $nextSibling = $node;
                }
            }
        } else if ($node_level > 0) {
            // show root items only if no childern is selected
            continue;
        }

        if ($node_level == $current_node_level) {
            if ($counter > 0)
                $html .= '