当浏览k2文章时，激活k2的分类菜单项

讨论环境：

• joomla 1.5
• k2 2.41

k2的工具模块（k2 tools）具有分类菜单的功能，这个功能是比较常用的。

当我们浏览某个分类页面，对应的菜单项就会被“激活”，为其添加对应的激活css样式；但当我们浏览此分类下的某篇文章时，对应的菜单项并不会被激活。

因此我们需要修改k2 tools模块下的helper.php文件 位置：modules/mod_k2_tools/helper.php

在大约258行添加以下代码

//Joomkit active highlight tweak
//only perform if item is being viewed
if ($view == 'item'){
 
//get article id
$K2itemid = JRequest::getInt('id');
 
$query = "SELECT catid FROM #__k2_items WHERE id = {$K2itemid} AND published=1 AND trash=0 AND access<={$aid} ";
$db->setQuery($query);
 
//return items category id
$ItemCatid = $db->loadResult();
if ($db->getErrorNum()) {
echo $db->stderr();
return false;
}
}

代码上下位置关系

static $output;
 if ($begin) {
 $output = '';
 }
 
 $root_id = (int) $params->get('root_id');
 $end_level = $params->get('end_level', NULL);
 $id = (int) $id;
 $catid = JRequest::getInt('id');
 $option = JRequest::getCmd('option');
 $view = JRequest::getCmd('view');
 
 $user = &JFactory::getUser();
 $aid = (int) $user->get('aid');
 $db = &JFactory::getDBO();
 
//Joomkit active highlight tweak
//only perform if item is being viewed
if ($view == 'item'){
 
//get article id
$K2itemid = JRequest::getInt('id');
 
$query = "SELECT catid FROM #__k2_items WHERE id = {$K2itemid} AND published=1 AND trash=0 AND access<={$aid} ";
$db->setQuery($query);
//return items category id
$ItemCatid = $db->loadResult();
if ($db->getErrorNum()) {
echo $db->stderr();
return false;
}
} 
 
 switch ($params->get('categoriesListOrdering')) {
 
 case 'alpha':
 $orderby = 'name';
 break;
 
 case 'ralpha':
 $orderby = 'name DESC';
 break;
 
 case 'order':
 $orderby = 'ordering';
 break;
 
 case 'reversedefault':
 $orderby = 'id DESC';
 break;
 
 default:
 $orderby = 'id ASC';
 break;
 }
 
 if (($root_id != 0) && ($level == 0)) {
 $query = "SELECT * FROM #__k2_categories WHERE parent={$root_id} AND published=1 AND trash=0 AND access<={$aid} ORDER BY {$orderby}";
 
 } else {
 $query = "SELECT * FROM #__k2_categories WHERE parent={$id} AND published=1 AND trash=0 AND access<={$aid} ORDER BY {$orderby}";
 }

然后修改位置大概在325行（添加了上面代码的后的行数）

把原来的：

if (($option == 'com_k2') && ($view == 'itemlist') && ($catid == $row->id)){

替换成

if ( (($option == 'com_k2') && ($view == 'itemlist')  &&  ($catid == $row->id)) || (($option == 'com_k2')  && ($view ==  'item') && ($row->id == $ItemCatid)) ){

然后添加对应的css规划就行了，这里就不写了，有兴趣的朋友可以看原文：

http://community.getk2.org/profiles/blogs/active-menu-items-part-two