Displaying Related Posts with Custom Post Type

(@sophieyanow)

Hi folks!

I’m trying to create a list of thumbnails of related posts within a custom post type.

I found the following code over at wpbeginner:

<?php $orig_post = $post;
global $post;
$categories = get_the_category($post->ID);
if ($categories) {
$category_ids = array();
foreach($categories as $individual_category) $category_ids[] = $individual_category->term_id;

$args=array(
'category__in' => $category_ids,
'post__not_in' => array($post->ID),
'posts_per_page'=> 2, // Number of related posts that will be shown.
'caller_get_posts'=>1
);

$my_query = new wp_query( $args );
if( $my_query->have_posts() ) {
echo '<div id="related_posts"><h3>Related Posts</h3><ul>';
while( $my_query->have_posts() ) {
$my_query->the_post();?>

<li><div class="relatedthumb"><a href="<? the_permalink()?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_post_thumbnail(); ?></a></div>
<div class="relatedcontent">
<h3><a href="<? the_permalink()?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></h3>
<?php the_time('M j, Y') ?>
</div>
</li>
<?
}
echo '</ul></div>';
}
}
$post = $orig_post;
wp_reset_query(); ?>

which would work if I were using a regular post. In order to display a list of custom posts from a specific category elsewhere, I’ve used this:

<?php
  query_posts( array( 'post_type' => 'lv_video', 'category_name' => 'featured' ) );
  if ( have_posts() ) : while ( have_posts() ) : the_post();
?>

<li>
  <?php the_excerpt(); ?>
</li>

<?php endwhile; endif; wp_reset_query(); ?>

But I’m not sure how to modify the first code to reflect my custom post type.

Viewing 6 replies - 1 through 6 (of 6 total)

MichaelH
(@michaelh)

13 years, 6 months ago
```
$args=array(
'post_type' => 'your post type here',
'category__in' => $category_ids,
'post__not_in' => array($post->ID),
'posts_per_page'=> 2, // Number of related posts that will be shown.
'caller_get_posts'=>1
);
```
Thread Starter sophieyanow
(@sophieyanow)

13 years, 6 months ago

Thanks MichaelH! Awesome. I have very little knowledge of PHP and I’ve forgotten a lot of other programming… but that makes sense. I’ll try it out.

blackstudio
(@blackstudio)

12 years, 10 months ago

sophieyanow – did that work? i’m using the same code and trying to do the same thing but can’t get it to work….. any thoughts?
benito64
(@benito64)

12 years, 9 months ago
Hi,

I’m pretty curious about this topic too.
I can’t get post__in and post__not_in to work with custom post types.
The example below works fine with the ‘post_type’ line commented (standard post query).
Here’s what happens if I uncomment this line in order to query custom posts : using post__in, I get no posts at all, and using post__not_in I get all the posts including the ones I want to exclude.

Any clue ? (I’m using WP 3.1.3 by the way)
Thanks
```
$custom_query = new WP_Query(array(
//	'post_type'=>'header_images',
	'posts_per_page' => -1,
	'post__in' => array(234),
	'orderby' => 'menu_order',
	'order' => 'ASC'
));
```
benito64
(@benito64)

12 years, 9 months ago

Oops… there was something wrong in my code, that was pretty tricky indeed, but WP was not involved. Sorry.

gcoghill
(@gcoghill)

12 years, 7 months ago

I added this code into my single-custom-post-type.php but see nothing when I refresh the page.