function printTree($tree)
{
$output = '';
if (!is_null($tree) && count($tree) > 0) {
$output .= '<ul>';
foreach ($tree as $node) {
$tmp_subject_type = new SubjectType();
$tmp_subject_type->load($node['id']);
$output .= '<li>';
$output .= $tmp_subject_type->get_link();
if (!empty($node['children'])) {
$output .= $this->printTree($node['children']);
}
$output .= '</li>';
}
$output .= '</ul>';
}
return $output;
}
public function get_parent_name()
{
if (empty($this->parent_id)) {
return;
} else {
$parent = new SubjectType();
$parent->load($this->parent_id);
$output = $parent->get_link();
if (!empty($parent->parent_id)) {
$output .= ' -> ' . $parent->get_parent_name();
}
return $output;
}
}
