public static function list_courses($enrollable_only, $sortby, $guest, $username)
{
//Don't forget to set it as static
global $CFG, $DB;
$params = self::validate_parameters(self::list_courses_parameters(), array('enrollable_only' => $enrollable_only, 'sortby' => $sortby, 'guest' => $guest, 'username' => $username));
$auth = new auth_plugin_joomdle();
$id = $auth->list_courses($enrollable_only, $sortby, $guest, $username);
return $id;
}
