What I did was replace the getCategoryTree() furnciton from the 2.5 plugin with the one from the 3.0 version and it works fine.
<EDIT> Apologies, I had forgotten I had already edited an earlier version of this plugin five years ago. I added the improvments, and here it is,but note my version only works if there are not forum subcategories and there are menu itmes for each caegory. However, it also improves on the original version by not duplicating forum categories if they exist.
Code:
<?php
class xmap_com_kunena{
static $profile;
static $config;
// called before a menu item is printed. We use it to set the proper uniqueid for the item
function prepareMenuItem($node, &$params){$link_query = parse_url($node->link);
parse_str(html_entity_decode($link_query['query']), $link_vars);
$catid = intval(JArrayHelper::getValue($link_vars, 'catid', 0));
$id = intval(JArrayHelper::getValue($link_vars, 'id', 0));
$func = JArrayHelper::getValue($link_vars, 'func', '', '');
if($func = 'showcat' && $catid){
$node->uid = 'com_kunenac'.$catid;
$node->expandible = false;
}
elseif($func = 'view' && $id){
$node->uid = 'com_kunenaf'.$id;
$node->expandible = false;
}
}
function getTree($xmap, $parent, &$params){
if($xmap->isNews)return false;
if(!xmap_com_kunena::loadKunenaApi())return false;
if(!self::$profile){
self::$config = KunenaFactory::getConfig();
self::$profile = KunenaFactory::getUser();
}
$user = JFactory::getUser();
$catid = 0;
$link_query = parse_url($parent->link);
if(!isset($link_query['query']))return;
parse_str(html_entity_decode($link_query['query']), $link_vars);
$view = JArrayHelper::getValue($link_vars, 'view', '');
$layout = JArrayHelper::getValue($link_vars, 'layout', '');
$catid_link = JArrayHelper::getValue($link_vars, 'catid', 0);
if($view == 'category' AND (!$layout OR 'list' == $layout)){
if(!empty($catid_link)){
$link_query = parse_url($parent->link);
parse_str(html_entity_decode($link_query['query']), $link_vars);
$catid = JArrayHelper::getValue($link_vars, 'catid', 0);
}else{
$catid = 0;
}
// Get ItemID of the main menu entry of the component
$component = JComponentHelper::getComponent('com_kunena');
$menus = JApplication::getMenu('site', array());
$items = $menus->getItems('component_id', $component->id);
foreach($items as $item){
if(@$item->query['view'] == 'home'){
$parent->id = $item->id;
break;
}
}
}else{
return true;
}
$priority = JArrayHelper::getValue($params, 'cat_priority', $parent->priority);
$changefreq = JArrayHelper::getValue($params, 'cat_changefreq', $parent->changefreq);
if($priority == '-1')$priority = $parent->priority;
if($changefreq == '-1') $changefreq = $parent->changefreq;
$params['cat_priority'] = $priority;
$params['cat_changefreq'] = $changefreq;
$jVersion = new JVersion();
if($jVersion->isCompatible('3.1'))
$params['groups'] = implode(',', $user->getAuthorisedViewLevels());
else{
$params['groups'] = implode(',', $user->authorisedLevels());
}
$priority = JArrayHelper::getValue($params, 'topic_priority', $parent->priority);
$changefreq = JArrayHelper::getValue($params, 'topic_changefreq', $parent->changefreq);
if($priority == '-1')$priority = $parent->priority;
if($changefreq == '-1')$changefreq = $parent->changefreq;
$params['topic_priority'] = $priority;
$params['topic_changefreq'] = $changefreq;
$ordering = JArrayHelper::getValue($params, 'topics_order', 'ordering');
if(!in_array($ordering, array('id', 'ordering', 'time', 'subject', 'hits')))
$ordering = 'ordering';
$params['topics_order'] = 't.`'.$ordering.'`';
$params['include_pagination'] = ($xmap->view == 'xml');
$params['limit'] = '';
$params['days'] = '';
$limit = JArrayHelper::getValue($params, 'max_topics', '');
if(is_numeric($limit))$params['limit'] = $limit;
$days = JArrayHelper::getValue($params, 'max_age', '');
$params['days'] = false;
if(is_numeric($days))$params['days'] = ($xmap->now - (intval($days) * 86400));
$params['table_prefix'] = xmap_com_kunena::getTablePrefix();
xmap_com_kunena::getCategoryTree($xmap, $parent, $params, $catid);
}
function getCategoryTree($xmap, $parent, &$params, $parentCat){
$db = JFactory::getDBO();
$catlink = 'index.php?option=com_kunena&view=category&catid=%s&Itemid='
.$parent->id;
$toplink = 'index.php?option=com_kunena&view=topic&catid=%s&id=%s&Itemid='
.$parent->id;
$categories = KunenaForumCategoryHelper::getChildren($parentCat);
$xmap->changeLevel(1);
$topics = KunenaForumTopicHelper::getLatestTopics($parentCat, 0,
($params['limit'] ? (int)$params['limit'] : PHP_INT_MAX),
array('starttime', $params['days']));
foreach($topics[1] as $topic){
$node = new stdclass;
$node->id = $parent->id;
$node->browserNav = $parent->browserNav;
$node->uid = 'com_kunenat'.$topic->id;
$node->name = $topic->subject;
$node->priority = $params['topic_priority'];
$node->changefreq = $params['topic_changefreq'];
$node->modified = intval($topic->last_post_time);
$node->link = sprintf($toplink, $topic->category_id, $topic->id);
$node->expandible = false;
$node->secure = $parent->secure;
$xmap->printNode($node);
}
$xmap->changeLevel(-1);
}
private static function loadKunenaApi(){
if(!defined('KUNENA_LOADED')){
jimport('joomla.application.component.helper');
if(!JComponentHelper::isEnabled('com_kunena', true))return false;
$kunena_api = JPATH_ADMINISTRATOR.'/components/com_kunena/api.php';
if(!is_file($kunena_api))return false;
require_once ($kunena_api);
}
return true;
}
function getKunenaMajorVersion(){
static $version;
if(!$version){
if(class_exists('KunenaForum'))$version = KunenaForum::versionMajor();
elseif(class_exists('Kunena'))$version = substr(Kunena::version(), 0, 3);
}
return $version;
}
function getTablePrefix(){
return '#__kunena';
}
}
