[Support request] Prev/Next in CPT

[Dave]

I’m trying to add previous and next links to a custom post type — I’ve checked out the threads below with no luck:
https://generatepress.com/forums/topic/nextprevious-post-links-on-cpt/
https://generatepress.com/forums/topic/adding-previousnext-links-to-custom-post-types/

I’ve created a CPT called ws_work and created a single-ws_work.php and content-ws_single.php file. Adding the code from the above threads into the functions.php hasn’t worked.

Am I missing something obvious?

[Tom]

Hi there,

Can you try this?:

add_action( 'generate_after_entry_content', function() {
    if ( is_singular( 'ws_work' ) ) : ?>
        <footer class="entry-meta">
            <nav id="nav-below" class="post-navigation">
                <span class="screen-reader-text"><?php esc_html_e( 'Post navigation', 'generatepress' ); ?></span>
                <?php
                    previous_post_link( '<div class="nav-previous"><span class="prev" title="Previous">%link</span></div>', '%title' );
                    next_post_link( '<div class="nav-next"><span class="next" title="Next">%link</span></div>', '%title' );
                ?>
            </nav>
        </footer><!-- .entry-meta -->
    <?php endif;
} );

Let me know 🙂

[Dave]

Hi Tom,

Thanks for getting back to me…on a Saturday, too. 🙂

I’m afraid there’s no luck there, either.

Here’s the functions.php code I’m using to generate the CPT…if this helps:

function create_post_type() {
  register_post_type( 'ws_work',
    array(
      'labels' => array(
        'name' => __( 'Work' ),
        'singular_name' => __( 'Work' )
      ),
      'public' => true,
      'has_archive' => true,
	  'rewrite' => array('slug' => 'project'),
	  'supports' => array('title','thumbnail','editor','revisions','page-attributes','excerpt'),
	  'show_in_rest' => true,
    )
  );
}
add_action( 'init', 'create_post_type' );

If it’s helpful, I’m happy to provide admin credentials, too.

Thanks again for your help with this,

Dave

[Tom]

Hi there,

Strange, it’s like those two core functions aren’t working at all.

Just to confirm, other published posts exist in that post type, yea?

[Dave]

Hi Tom,

Yes, that’s correct — it’s really odd.

I could set up an admin account and/or FTP if that would be helpful? The admin editor is active so it’s possible to view/edit the files directly from the dashboard.

Dave

[Tom]

What happens if you replace:

previous_post_link( '<div class="nav-previous"><span class="prev" title="Previous">%link</span></div>', '%title' );

With:

$prev = previous_post_link( '<div class="nav-previous"><span class="prev" title="Previous">%link</span></div>', '%title' );
var_dump($prev);

Does it output anything on the page?

Also, I’m seeing the code twice in the HTML. Make sure you only have the function added once.

[Dave]

Hi Tom,

Missed this notification, sorry for the delay.

That returns NULL.

Yes, I noticed that about the HTML, too. The code is only added once in functions.php and isn’t duplicated in any of the template files or in a GeneratePress element/hook. Weird behaviour.

Dave

[Tom]

Hmm, from what I know, it would only return null if no other posts exist.

Does it still happen if you deactivate your other plugins/custom functions?

[Dave]

Hi Tom,

Yes, I’ve just deactivated everything except for GP and the issue remains (returns NULL).

Very odd…

Dave

[Tom]

I just gave this a shot with your CPT code and the code I shared above, and here’s what I get: http://prntscr.com/my123t

So we’ve ruled out other plugins causing it not to work. What about if you disable any other custom functions?

[Dave]

Hi Tom,

I’ve adjusted the functions.php code to this:

<?php
// Exit if accessed directly
if ( !defined( 'ABSPATH' ) ) exit;

// BEGIN ENQUEUE PARENT ACTION
// AUTO GENERATED - Do not modify or remove comment markers above or below:

if ( !function_exists( 'chld_thm_cfg_locale_css' ) ):
    function chld_thm_cfg_locale_css( $uri ){
        if ( empty( $uri ) && is_rtl() && file_exists( get_template_directory() . '/rtl.css' ) )
            $uri = get_template_directory_uri() . '/rtl.css';
        return $uri;
    }
endif;
add_filter( 'locale_stylesheet_uri', 'chld_thm_cfg_locale_css' );

if ( !function_exists( 'chld_thm_cfg_parent_css' ) ):
    function chld_thm_cfg_parent_css() {
        wp_enqueue_style( 'chld_thm_cfg_parent', trailingslashit( get_template_directory_uri() ) . 'style.css', array(  ) );
    }
endif;
add_action( 'wp_enqueue_scripts', 'chld_thm_cfg_parent_css', 10 );

// END ENQUEUE PARENT ACTION

/* Work Custom Post Type */
function create_post_type() {
  register_post_type( 'ws_work',
    array(
      'labels' => array(
        'name' => __( 'Work' ),
        'singular_name' => __( 'Work' )
      ),
      'public' => true,
      'has_archive' => true,
	  'rewrite' => array('slug' => 'project'),
	  'supports' => array('title','thumbnail','editor','revisions','page-attributes','excerpt'),
	  'show_in_rest' => true,
    )
  );
}
add_action( 'init', 'create_post_type' );

add_action( 'generate_after_entry_content', function() {
    if ( is_singular( 'ws_work' ) ) : ?>
        <footer class="entry-meta">
            <nav id="nav-below" class="post-navigation">
                <span class="screen-reader-text"><?php esc_html_e( 'Post navigation', 'generatepress' ); ?></span>
                <?php
                    $prev = previous_post_link( '<div class="nav-previous"><span class="prev" title="Previous">%link</span></div>', '%title' );
					var_dump($prev);
                    next_post_link( '<div class="nav-next"><span class="next" title="Next">%link</span></div>', '%title' );
                ?>
            </nav>
        </footer><!-- .entry-meta -->
    <?php endif;
} );

And it’s producing the same NULL result.

Dave

[Tom]

I’m afraid I’m stumped. That exact code works on my installs (as my screenshot showed).

Do you have another test site you can test it on?

[Dave]

No problem — it’s not the end of the world. 🙂

I’ll put this on the backburner for now.

Thanks for all of your help. GeneratePress is wicked, so light and fast! 🙂

Dave

[Tom]

Sounds good – it’s definitely worth testing on another install just to see if it’s something to do with that site.

Glad you’re enjoying it!

[Author]

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