/**
* Unfolds a node and returns the HTML of the unfolded node and its children.
*/
public static function tree_unfold_node()
{
parent::$json_data += array('unfolded_node' => '', 'unfolded_sub_tree_nodes' => array(), 'unfolded_sub_tree' => '', 'total_displayed_nodes' => 0);
$tree = new ApmTreeData();
$tree->load_last_tree();
if (isset($_POST['node_to_unfold']) && is_numeric($_POST['node_to_unfold'])) {
$tree->unfold_node($_POST['node_to_unfold']);
parent::$json_data['unfolded_node'] = $_POST['node_to_unfold'];
//Retrieve unfolded subtree to return it:
$tree_nodes = $tree->get_ready_to_display_tree($_POST['node_to_unfold']);
parent::$json_data['unfolded_sub_tree_nodes'] = array_keys($tree_nodes);
parent::$json_data['unfolded_sub_tree'] = self::get_html_tree($tree_nodes);
parent::$json_data['total_displayed_nodes'] = $tree->get_visible_nodes_number();
} else {
parent::add_error("Please send a \"node_to_unfold\" as POST variable.");
}
parent::send_json();
}
