I am trying to do the same thing.
I have no problems getting the pages and categories to work together but I am having trouble getting the correct subcategories returned for the parent category that is being viewed. (I am not using drop downs for level 2, I am using a contextual level 2) anyway, here is what I have done to achieve the page and category integration.
`
<div id=”nav_panel” class=”clearfix”>
<div id=”nav1″>
<?php wp_list_pages(‘depth=1&title_li=’); ?> <!–this bit gets the parent pages–>
<?php wp_list_categories(‘hide_empty=0&depth=1&exclude=1&title_li=’); ?> <!–this bit gets the parent categories–>
</div> <!– end: nav1 –>
<div id=”nav2″ class=”clearfix”>
<?php
if (is_category()) {
/* Im having trouble with this section (getting the right children of parent Category */
$this_category = get_category($cat);
foreach((get_the_category()) as $childcat) {
if (cat_is_ancestor_of($this_category->cat_ID, $childcat)) {
echo ‘<ul id=”subpage_menu”>’;
wp_list_categories(‘exlude=1&show_count=0&title_li=&use_desc_for_title=1&child_of=’.$this_category->cat_ID);
echo “”;
} else{
echo ‘<ul id=”subpage_menu”>’;
wp_list_categories(‘hide_empty=0&depth=1&exclude=1&title_li=’);
echo “”;
}
}
}
/* End of troubled section */
// Getting the subpages ***** THIS WORKS FINE *****
elseif (is_page()) {
echo ‘<ul id=”subpage_menu”>’;
if($post->post_parent)
wp_list_pages(“title_li=&depth=1&child_of=”.$post->post_parent); else
wp_list_pages(“title_li=&depth=1&child_of=”.$post->ID);
echo “”;
}
?>
</div><!– end: nav2 –>
</div> <!– end: nav_panel –>
I hope that this helps.
PS if you know how to fix my issue with getting the child categories please leave a comment at my open thread: http://wordpress.org/support/topic/403357?replies=1#post-1528815
