function toggleItem($uid, $itemid)
{
$app = JFactory::getApplication('site');
$sitemap = $this->getItem();
$displayer = new XmapDisplayer($app->getParams(), $sitemap);
$excludedItems = $displayer->getExcludedItems();
if (isset($excludedItems[$itemid])) {
$excludedItems[$itemid] = (array) $excludedItems[$itemid];
}
if (!$displayer->isExcluded($itemid, $uid)) {
$excludedItems[$itemid][] = $uid;
$state = 0;
} else {
if (is_array($excludedItems[$itemid]) && count($excludedItems[$itemid])) {
$excludedItems[$itemid] = array_filter($excludedItems[$itemid], create_function('$var', 'return ($var != \'' . $uid . '\');'));
} else {
unset($excludedItems[$itemid]);
}
$state = 1;
}
$registry = new JRegistry('_default');
$registry->loadArray($excludedItems);
$str = $registry->toString();
$db =& JFactory::getDBO();
$query = "UPDATE #__xmap_sitemap set excluded_items='" . $db->escape($str) . "' where id=" . $sitemap->id;
$db->setQuery($query);
$db->query();
return $state;
}
