Display content in single CPT

This has been pretty stumped, it should be working. I'm on the road until tomorrow so I don't have a localhost to test with, unfortunately.

One more thing to try before I get back into the office tomorrow to figure out exactly why it's not working:

add_action( 'generate_after_content', function() {
    if ( is_singular( 'your-post-type-name' ) ) {
        previous_post_link();
        next_post_link();
    }
} );

Let me know if that displays anything at all.

Again.... nothing.
Don't worry about the time, I am not in a hurry.
I'd rather use WP Show Posts (I also have the PRO version) if I wouldn't need a filterable portfolio with CPT's...
Thanks for you patience and support!

No problem - I'll dig into this ASAP and will let you know what I find out :)

Hi Tom, thank you! It would be great if the problem can be solved. Even better if I could use WP Show PostsPRO and have a filterable portfolio... That would be the best :-)
I know it's not a feature yet, but maybe it can be done another way?
Thanks,
Eva

So I just built a custom post type and named it project.

I then added this function:

add_action( 'generate_after_content', function() {
    if ( is_singular( 'project' ) ) {
        previous_post_link();
        next_post_link();
    }
} );

And it's showing the links for me. They need to be styled with CSS, but they're there.

Yessss! Great, it works!! You're a genius :-)
Now, to show categories and tags, I add?

Thanks!!!

Awesome :)

Are those taxonomies registered in your custom post type? Or do you have custom taxonomies?

I use custom taxonomies: Projectsoorten and Trefwoorden

Thanks!

So you could try something like this:

add_action( 'generate_after_content', function() {
    if ( is_singular( 'project' ) ) {
        previous_post_link();
        next_post_link();

        $projectsoorten = get_the_term_list( get_the_ID(), 'projectsoorten' );
        $trefwoorden = get_the_term_list( get_the_ID(), 'trefwoorden' );

        if ( $projectsoorten ) {
            echo $projectsoorten;
        }

        if ( $trefwoorden ) {
            echo $trefwoorden;
        }
    }
} );

Obviously, it would need to be styled with CSS.

Unfortunately I got an error... I send you the code for the Projectsoort taxonomy, because I think what I send you was not correct (sorry, ones again :-)

function your_prefix_register_taxonomy() {

$args = array (
'label' => esc_html__( 'Projectsoorten', 'text-domain' ),
'labels' => array(
'menu_name' => esc_html__( 'Projectsoorten', 'text-domain' ),
'all_items' => esc_html__( 'All Projectsoorten', 'text-domain' ),
'edit_item' => esc_html__( 'Edit Projectsoort', 'text-domain' ),
'view_item' => esc_html__( 'View Projectsoort', 'text-domain' ),
'update_item' => esc_html__( 'Update Projectsoort', 'text-domain' ),
'add_new_item' => esc_html__( 'Add new Projectsoort', 'text-domain' ),
'new_item_name' => esc_html__( 'New Projectsoort', 'text-domain' ),
'parent_item' => esc_html__( 'Parent Projectsoort', 'text-domain' ),
'parent_item_colon' => esc_html__( 'Parent Projectsoort:', 'text-domain' ),
'search_items' => esc_html__( 'Search Projectsoorten', 'text-domain' ),
'popular_items' => esc_html__( 'Popular Projectsoorten', 'text-domain' ),
'separate_items_with_commas' => esc_html__( 'Separate Projectsoorten with commas', 'text-domain' ),
'add_or_remove_items' => esc_html__( 'Add or remove Projectsoorten', 'text-domain' ),
'choose_from_most_used' => esc_html__( 'Choose most used Projectsoorten', 'text-domain' ),
'not_found' => esc_html__( 'No Projectsoorten found', 'text-domain' ),
'name' => esc_html__( 'Projectsoorten', 'text-domain' ),
'singular_name' => esc_html__( 'Projectsoort', 'text-domain' ),
),
'public' => true,
'show_ui' => true,
'show_in_menu' => true,
'show_in_nav_menus' => true,
'show_tagcloud' => true,
'show_in_quick_edit' => true,
'show_admin_column' => false,
'show_in_rest' => false,
'hierarchical' => false,
'query_var' => true,
'sort' => false,
'rewrite_no_front' => false,
'rewrite_hierarchical' => false,
'rewrite' => true,
);

register_taxonomy( 'projectsoort', array( 'project' ), $args );
}
add_action( 'init', 'your_prefix_register_taxonomy', 0 );

What was the error?

Sorry, this is the error:

Catchable fatal error: Object of class WP_Error could not be converted to string in /home/alfabetp/test.alfabetprodukties.nl/wp-content/themes/generatepress_child/functions.php on line 22

Hope this is of any use...
Thanks again!!

Are projectsoorten and trefwoorden the correct IDs of the taxonomies? I only guessed based on their names.

I think I the ID's are projectsoort and Trefwoord, because now I don't get an error anymore. It all looks quite strange though, and even more when I click to open a similar project...
But I am happy it's almost resolved now!! Thank you for spending so much time!

They likely need to be styled with CSS to look good. I'm not seeing any of the tags listed on your project pages though?