Breadcrumbs for custom post types

Thank you very much for your response!

I somehow missed that archives are no supported. Sorry for that. I am working on a directory website, and for that breadcrumbs would be helpful, but I totally understand that it is a niche case.

For the singular posts in that post type I sent you, I am also not getting breadcrumbs. It is working for default posts and pages but not for the CPT. Is there any other limitation I have missed?

Hi Sybre,

I finally found time to look at the issue again. I flushed the permalinks and the cleared the site cache. But with no effect.

Please note that the custom post type doesnt have any taxonomies added. The default taxonomies are not activated.

I am using CPT UI to register the custom post type. Here is the code:

function cptui_register_my_cpts_master() {

	/**
	 * Post Type: Master.
	 */

	$labels = [
		"name" => __( "Master", "generatepress" ),
		"singular_name" => __( "Master", "generatepress" ),
	];

	$args = [
		"label" => __( "Master", "generatepress" ),
		"labels" => $labels,
		"description" => "Custom Post Type in dem [...]. ",
		"public" => true,
		"publicly_queryable" => true,
		"show_ui" => true,
		"show_in_rest" => true,
		"rest_base" => "",
		"rest_controller_class" => "WP_REST_Posts_Controller",
		"has_archive" => true,
		"show_in_menu" => true,
		"show_in_nav_menus" => true,
		"delete_with_user" => false,
		"exclude_from_search" => false,
		"capability_type" => "post",
		"map_meta_cap" => true,
		"hierarchical" => false,
		"can_export" => false,
		"rewrite" => [ "slug" => "master", "with_front" => true ],
		"query_var" => true,
		"menu_icon" => "dashicons-welcome-learn-more",
		"supports" => [ "title", "editor", "thumbnail", "excerpt", "trackbacks", "custom-fields", "comments", "revisions", "author", "page-attributes", "post-formats" ],
		"taxonomies" => [ "category", "post_tag" ],
		"show_in_graphql" => false,
	];

	register_post_type( "master", $args );
}

add_action( 'init', 'cptui_register_my_cpts_master' );

To rule out that CPT UI is causing the issue I registered a basic CPT in PHP:

function create_posttype() {
  
    register_post_type( 'movies',
    // CPT Options
        array(
            'labels' => array(
                'name' => __( 'Movies' ),
                'singular_name' => __( 'Movie' )
            ),
            'public' => true,
            'has_archive' => true,
            'rewrite' => array('slug' => 'movies'),
            'show_in_rest' => true,
  
        )
    );
}

add_action( 'init', 'create_posttype' );

The staging site has a lot of customization. So I setup a local testing site (fresh 5.9.2 install with 2022 theme) and did the same as above. I registered a post type with CPT UI and one with the code above. I checked the source code and in both cases the single custom post type did not include breadcrumbs or any other schema markup.

I am not sure where to check next?

Thank you very much for your help!

Kind regards
Yannick

• This reply was modified 4 years, 2 months ago by yann1ck.
• This reply was modified 4 years, 2 months ago by yann1ck. Reason: Code still messed up

Hi Sybre,

I dont mind the delay. Thank your for your time!

I am curious, why did you assign the built-in taxonomies category and post_tag for post type post to master?

It was just for testing, I want to use custom taxonomies, but it was simpler to test with the default ones.

Anyway, you must assign a category to a post before the breadcrumbs display. WordPress force-assigns a default category to the built-in post type post but somehow doesn’t do that for your custom post type master.

Thank your for clarifying. I didnt know that I need a category to display breadcrumbs. I created the custom post type without support for any taxonomy. I think in this case WordPress is not able to assign a default category and the breadcrumbs dont work.

Just on final question: The breadcrumbs are based on the taxonomy assigned to a post type. So it is not possible to create a breadcrumb that includes the Archive page? E. g. Home Page --> Archive Page --> custom post