plugins\hiddengroups\hiddengroups.admin.users.update.php

<?php
/* ====================
[BEGIN_COT_EXT]
Hooks=admin.users.update
[END_COT_EXT]
==================== */
 
/**
 * Hidden groups
 *
 * @package HiddenGroups
 * @copyright (c) Cotonti Team
 * @license https://github.com/Cotonti/Cotonti/blob/master/License.txt
 */
 
(defined('COT_CODE') && defined('COT_ADMIN')) or die('Wrong URL.');
 
$rgroups['grp_hidden'] = cot_import('rhidden', 'P', 'BOL');
 
if(!empty($rgroups['grp_name']) && !empty($rgroups['grp_title']))
{
	$db->update($db_groups, array('grp_hidden' => (int)$rgroups['grp_hidden']), "grp_id = ".(int)$g);
}
 
$cache && $cache->db->remove('cot_hiddenusers', 'system');