WordPress.org

1. ffwebdesigner
   Member
   Posted 5 months ago #

   Hi guys,

   after upgrading http://http://www.wiwis-kohle.de/ to wordpress 3.3 all archive (category) pages on the left side went empty. Before with WP 2.6 on the category pages we had all posts displayed correctly. It's a custom theme, but i'm just using standard wordpress tags. my archive page looks like:

   `<?php get_header(); ?>
   <div id="content" role="main">
   <div class="navigation">
   <div class="alignleft"><?php next_posts_link(__('« Older Entries', 'kubrick')); ?></div>
   <div class="alignright"><?php previous_posts_link(__('Newer Entries »', 'kubrick')); ?></div>
   </div>
   <?php while (have_posts()) : the_post(); ?>
   <div <?php post_class(); ?>>
   <div class="entry">
   <?php the_content() ?>
   </div>
   </div>
   <?php endwhile; ?>
   </div>
   <?php get_sidebar(); ?>
   <?php get_footer(); ?>'

   Nothing special. All the posts are still there, but when calling the category pages, nothing is being displayed.

   Post, e.g.
   http://www.wiwis-kohle.de/schweizer-kohlebrief/schweizer-kohlebrief.html

   Category, empty:
   http://www.wiwis-kohle.de/schweizer-kohlebrief

   any idea for a solution?

   cheers
   frank,
   ff-webdesigner.de

2. edalbeci
   Member
   Posted 5 months ago #

   I had the same exact problem.
   For me, here was the thing though: it had nothing to do with 'categories', but rather the functions I placed within 'while (have_posts...'

   1. You have to disable all plugins.

   For some reason, no errors were returned when plugins were activated.

   2. There are two possibilities:

   - categories now work

   This seems to be the popular consensus - that disabling plugins would fix the problem. If all of your functions are native, this possibility should be the one.
   If not, try switching to Twenty Eleven:
       -if it works, something is wrong with your theme (redownload/reinstall theme)
       - if it doesn't work, something was wrong with your installation of wordpress (and possibly your theme too - redownload/reinstall wordpress/repeat)

   - error(s) pop up

   My errors actually denoted undefined functions in succession, which was quite easy to fix. Very simply, I modified the 'functions.php' of wordpress prior to updating, so any customized functions were obviously deleted.

   This might help. For me, I had to add function capabilities to the theme - like this:
   

   add_theme_support( 'post-thumbnails' );

   Then, I had to (re)define custom functions - amongst them:
   

   fetch_first_img () {
   $files = get_children('post_parent='.get_the_ID().'&post_type=attachment&post_mime_type=image');
   if($files) :
   $keys = array_reverse(array_keys($files));
   $j=0;
   $num = $keys[$j];
   $image=wp_get_attachment_image($num, 'large', false);
   $imagepieces = explode('"', $image);
   $imagepath = $imagepieces[1];
   $thumb=wp_get_attachment_thumb_url($num);
   echo '<img src='.$thumb.' class="thumbnail" />';
   endif;
   }

   I hope this helps. =)

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