Hi Jörg,

Let me get to your questions tomorrow.

Paul

Jörg,

The code that I provided suggests related posts based on category.

To have it also take into consideration the tags, you can go to single.php and change this line (should be around line 61):

<?php $related_posts = mauer_get_related_posts(get_the_ID(), "category", 2); ?>
to this:
<?php $related_posts = mauer_get_related_posts(get_the_ID(), "category", "post_tag", 2); ?>

Please note that this is an experimental feature and may not always work as expected.

Another option would be to try third-party solutions for related posts — e.g. the one built into the Jetpack plugin.

Regards,
Paul

Jörg,

Yes, this is exactly how it is supposed to work with the original theme files. Let me explain:

With the original files the ‘More posts’ area shows the two recent posts. This is by design. And that is what is happening on http://www.travelbar.de. The only exception is that if you are viewing one of the 2 recent posts, the ‘More posts’ section will not display this very post, as you are currently viewing it.

The 2 files I sent you change this behavior — they make the ‘More posts’ section display related posts based on category.

The little code modification that I provided above makes this section display related posts based both on category and tags. However, as I’ve mentioned before this is n experimental feature and may not always work as expected.

Regards,
Paul