Show only one category in post list

Nobody knows? Please, if somebody can help… I have not been found information in internet about this.

Do you have an english version of your website?

Hello irocket,

Mi website is in spanish (throught an es_ES file placed in Languages directory).

Have a look at this plugin:

https://www.ads-software.com/extend/plugins/advanced-category-excluder/

Hi HandySolo,

thank you very much for your suggest. I proved this plugin aprox. 3 days ago, but it don’t worked in the cat links placed above the post titles. My template code looks thus (home.php):

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
	<?php the_category(' - ') ?>
	<div class="post" id="post-<?php the_ID(); ?>">
		 <h3><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></h3>
	</div>
	<?php endwhile; else: ?>
	<?php _e('Sorry, no posts matched your criteria.'); ?>

<?php endif; ?>

Is code right? As you can see, posts are showed as only titles, resulting in some like this:

Fruits – Vegetables – Plants
This is an apple’s article

I want to show only one category above. In this case, category ID (Vegetables) is “3”.

Right above this section of your template:

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

Add the following:

<?php query_posts('cat=3'); ?>

Reference:
https://codex.www.ads-software.com/Template_Tags/query_posts

If you need pagination on the page (next/previous posts links), see:

https://www.ads-software.com/support/topic/57912#post-312858

Hello Kafkaesqui,

Ops! there is a detail I forgot to mention. The article “This is an apple’s article” was assigned to three different categories, which belong to parent cats. I’m very, very sorry for this critical omission:

Parent-1 (ID=4)
— Fruit (ID=16)

Parent-2 (ID=3)
— Vegetables (ID=18)

Parent-3 (ID=5)
— Plants (ID=17)

In this order I had the modification in this way:

<?php query_posts('cat=16'); ?> // Fruit
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
	<?php the_category() ?>
	<div class="post" id="post-<?php the_ID(); ?>">
		 <h3><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></h3>
	</div>
	<?php endwhile; else: ?>
	<?php _e('Sorry, no posts matched your criteria.'); ?>

<?php endif; ?>

However, results are same as before. Query_posts certainly limit posts of a specific category, but multiple cat names continue appearing above the title.

Until this moment, the nearest result was give get_the_category tag with this string:

<?php
$category = get_the_category();
echo $category[0]->cat_name;
?>

This shows only one cat as I need, but limited to array[0], it’s a shame:

Vegetables
This is an apple’s article

Fruit
This is an orange’s article

Fruit
This is a watermelon’s article

The right way is to show “Vegetables” in each cat, but it don’t works. Also I proved with various conditional tags ways without success.

Solved guys!

Based in this topic I had modify the string:

<?php foreach((get_the_category()) as $cat) {
  if (!($cat->category_parent == 3))
  if (!($cat->category_parent == 4))
  echo $cat->cat_name . ' ';
};?>

The complete string:

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

<?php foreach((get_the_category()) as $cat) {
  if (!($cat->category_parent == 3))
  if (!($cat->category_parent == 4))
  echo $cat->cat_name . ' ';
};?>

<div class="post" id="post-<?php the_ID(); ?>">
  <h3 class="storytitle"><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></h3>
</div>

<?php endwhile; else: ?>
<?php _e('Sorry, no posts matched your criteria.'); ?>

<?php endif; ?>

This chapter is finished. Thanks very much for your help. I’m happy.