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1. zelimir83
   Member
   Posted 1 year ago #

   Hi, Im having a problem displaying child categories. Ive tried everything, I can get child categories displaying, but when I open them it says "No categories". What I want to do is, if there are child categories, display them, if there are none, display a post from the current category. This seems next to impossible, Ive searched a bunch of forums, a lot of guys have this problem, but it seems theres no real solution. I`ve gotten this far:

   <?php
   
   $cat_id = get_query_var('cat');
   
   $catlist = wp_list_categories('orderby=id&title_li=&child_of=' . $cat_id);
   
   	if ($catlist) echo $catlist; else { ?>
   
   <?php if (have_posts()) : ?>
   	<?php while (have_posts()) : the_post(); ?>
     	<div class="archive">
       	<div class="thumb left">
       		<a>" rel="bookmark"><img src="<?php bloginfo('template_directory'); ?>/includes/timthumb.php?src=<?php get_thumbnail($post->ID, 'full'); ?>&h=170&w=250&" alt="<?php the_title(); ?>" /></a>
       	</div> <!--end: thumb-->
         	<h2><a>" rel="bookmark"><?php the_title(); ?></a></h2>
         		<?php the_advanced_excerpt('length=160&use_words=0'); ?>
   	<strong><h4><a>" rel="bookmark">[Čitaj dalje...]</a></h4></strong>
       	<div class="clear"></div>
     </div> <!--end: archive-->
     <?php endwhile; ?>
     	<div class="clear"></div>
     	<div class="pagenavi">
     		<div class="nextprev left">
       		<?php previous_posts_link('« Raniji članci ') ?>
       	</div>
       	<div class="nextprev right">
         		<?php next_posts_link(' Noviji članci »') ?>
       	</div>
       <div class="clear"></div>
   	</div> <!--end: pagenavi-->
   	<?php else : ?>
       <?php endif; ?>
   	<?php }; ?>

   But I cannot seem to get the posts displayed, all I get is "No categories" message. Please help! Thanks!

2. alchymyth
   The Sweeper
   Posted 1 year ago #

   to get the 'wp_list_categories()' into a variable, you need to use the 'echo' parameter and set it to 'false'

   http://codex.wordpress.org/Template_Tags/wp_list_categories

3. zelimir83
   Member
   Posted 1 year ago #

   Nope, the echo is not the problem. Just put it in, nothing happened.

   Do you understand the problem? I get the child category list printed, but when WordPress needs to display an archive or category page (archive.php or category.php) where there are no categories, or you`ve clicked the parent category which has no child categories any more, with the code above all you get is the "No categories" printed, and I need posts from the current category printed.
   This is what the code looks like now:
   

   <?php // list child categories
   $cat_id = get_query_var('cat');
   
   $catlist = wp_list_categories('echo=0&orderby=id&title_li=&child_of=' . $cat_id); ?>
   
   			<?php if ($catlist) {
   echo $catlist;
   } else {
   include(TEMPLATEPATH . '/includes/entry.php');
   } ?>

   Entry.php contains standard archive.php code, where all of the posts from a certain category and its child categories get displayed. I cannot seem to get the else condition to work when you switch to a post where there are no categories any more. This means if my parent category is "Solar system", and it has a child category "Moon", when I click on the "Moon", I need the posts from the "Moon" category displayed, but I get "No categories" with the code above.

4. zelimir83
   Member
   Posted 1 year ago #

   Also, this is the Entry.php code:

   [code moderated as per forum rules - please use the pastebin]

5. alchymyth
   The Sweeper
   Posted 1 year ago #

   you are testing something ($catlist) which is never an empty string.

   try to change this:
   

   $catlist = wp_list_categories('echo=0&orderby=id&title_li=&child_of=' . $cat_id); ?>

   to this:
   

   $catlist = wp_list_categories('echo=0&show_option_none=&orderby=id&title_li=&child_of=' . $cat_id); ?>

   (untested)

   if this does not work, you may have to change your test from:
   <?php if ($catlist) {
   to:
   <?php if (get_categories('parent=' . $cat_id)) {

   http://codex.wordpress.org/Function_Reference/get_categories

6. zelimir83
   Member
   Posted 1 year ago #

   Hi, thanks a lot! You were right, all I needed was to use a different method of testing the variable $catlist, this is the code now:
   

   <?php // list child categories
   $cat_id = get_query_var('cat');
   
   $catlist = wp_list_categories('echo=0&orderby=id&title_li=&child_of=' . $cat_id); ?>
   
   			<div class="cat-items"><ul><li><?php if (get_categories('parent=' . $cat_id)) {
   echo $catlist; }
    else {  ?></li></ul></div>
   <?php include(TEMPLATEPATH . '/includes/entry.php'); ?>
   	<?php } ?>

   The only problem now is that I need to wrap up the list of categories in a div of class "cat-items", and I seem to be wrapping it wrongly. If I wrap up the entire php block, of course, I get the normal posts formatted as the list, and I only need to format the echo part, any idea on how I can do this, how can I wrap up just the echo $catlist part of the code into a div and li tags?

7. alchymyth
   The Sweeper
   Posted 1 year ago #

   try:

   <?php // list child categories
   $cat_id = get_query_var('cat');
   
   $catlist = wp_list_categories('echo=0&orderby=id&title_li=&child_of=' . $cat_id); ?>
   
   <?php if (get_categories('parent=' . $cat_id)) { ?>
   
   <div class="cat-items"><ul>
   <?echo $catlist; ?>
   </ul></div>
   
   <?php } else {  ?>
   <?php include(TEMPLATEPATH . '/includes/entry.php'); ?>
   	<?php } ?>

   (i removed the <li> as they would result in invalid html code.)

8. zelimir83
   Member
   Posted 1 year ago #

   Nevermind, I got it. If anyone needs it, here`s the solution:
   

   <?php // list child categories
   $cat_id = get_query_var('cat');
   
   $catlist = wp_list_categories('echo=0&orderby=id&title_li=&child_of=' . $cat_id); ?>
   
   			<?php if (get_categories('parent=' . $cat_id)) {
   echo '<div class="cat-items"><ul><li>' . $catlist . '</li></ul></div>'; } 
   
    else {  ?>
   <?php include(TEMPLATEPATH . '/includes/entry.php'); ?>
   	<?php } ?>

   alchymyth thanks a lot for your help!

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