/**
* Retrieves the total number of nodes. Warning : it includes the root node.
* Note : $this->apm_tree must be loaded before calling this.
* @param boolean $only_first_level Set to true to count only first level nodes (the ones just under the root).
*/
private function get_apm_tree_nb_nodes($only_first_level = false)
{
$nb_nodes = 0;
if (!empty($this->apm_tree)) {
if ($only_first_level) {
$nb_nodes = $this->apm_tree->count_node_direct_children(self::root_id);
} else {
$nb_nodes = $this->apm_tree->count_nodes();
}
}
return $nb_nodes;
}
