Title: Custom post categories
Last modified: August 22, 2016

---

# Custom post categories

 *  [camweb21](https://wordpress.org/support/users/camweb21/)
 * (@camweb21)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/custom-post-categories-1/)
 * Hi
 * I’ve added a custom post type to my site called ‘suppliers’ and set up categories
   within that custom post type by adding the following to funtions.php.
 *     ```
       function my_custom_post_supplier() {
         $labels = array(
           'name'               => _x( 'Suppliers', 'post type general name' ),
           'singular_name'      => _x( 'Supplier', 'post type singular name' ),
           'add_new'            => _x( 'Add New', 'book' ),
           'add_new_item'       => __( 'Add new supplier' ),
           'edit_item'          => __( 'Edit suppliers' ),
           'new_item'           => __( 'New supplier' ),
           'all_items'          => __( 'All suppliers' ),
           'view_item'          => __( 'View suppliers' ),
           'search_items'       => __( 'Search suppliers' ),
           'not_found'          => __( 'No suppliers found' ),
           'not_found_in_trash' => __( 'No suppliers found in the Trash' ),
           'parent_item_colon'  => '',
           'menu_name'          => 'Suppliers'
         );
         $args = array(
           'labels'        => $labels,
           'description'   => 'Holds our products and product specific data',
           'public'        => true,
           'menu_position' => 5,
           'supports'      => array( 'title', 'editor', 'thumbnail', 'excerpt', 'comments' ),
           'has_archive'   => true,
         );
         register_post_type( 'supplier', $args );
       }
       add_action( 'init', 'my_custom_post_supplier' );
       ```
   
 * I’ve then got it to list all the categories within supplier by adding the following
   code to a page template.
 *     ```
       <?php
       $customPostTaxonomies = get_object_taxonomies('supplier');
   
       if(count($customPostTaxonomies) > 0)
       {
            foreach($customPostTaxonomies as $supplier)
            {
       	     $args = array(
                	  'orderby' => 'name',
       	          'show_count' => 0,
               	  'pad_counts' => 0,
       	          'hierarchical' => 1,
               	  'taxonomy' => $supplier,
               	  'title_li' => ''
               	);
   
       	     wp_list_categories( $args );
            }
       } ?>
       ```
   
 * When I click one of these links it goes to
    [http://www.mysite.co.uk/supplier_category/](http://www.mysite.co.uk/supplier_category/)
   _categoryname_
 * With categoryname being the name of the link I just clicked.
 * When do this using normal posts (not custom) this then works by going to my archive.
   php page to detect what category was clicked and to display the posts within 
   that category. Using custom posts I just get page not found.
 * I’m using a bespoke theme which used _me (underscoresme) as a starting point.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Barrett Golding](https://wordpress.org/support/users/hearvox/)
 * (@hearvox)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/custom-post-categories-1/#post-5772305)
 * The best way to add Categories to a custom post type is to add this to your `
   $args` for the `register_post_type()` function :
    `'taxonomies' => array( 'category');`
   [http://codex.wordpress.org/Function_Reference/register_post_type#Taxonomies](http://codex.wordpress.org/Function_Reference/register_post_type#Taxonomies)
 * I’m not quite clear for your description, what’s happening on your site. It’d
   help if your posted your URL so we could see exactly what’s URLs are being generated.
 * As you stated, a category URL tells WordPress to use archive.php (if there’s 
   no category.php):
    [http://codex.wordpress.org/Template_Hierarchy#Category_display](http://codex.wordpress.org/Template_Hierarchy#Category_display)
 * The category URL itself is formed using the Category base (default: “category”)
   set in your admin Permalinks panel. So the default should be (whether for native
   posts or custom post types):
    example.com/category/{category-slug}
 * Have you set “supplier_category” as you Category base?
 *  Moderator [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * (@bcworkz)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/custom-post-categories-1/#post-5772345)
 * There’s some quirks with the default category taxonomy and custom post types,
   but what you describe is beyond that. Clicking a category link from a custom 
   post type should yield regular posts in that category, though your CPT will not
   be in the list. Could it be the category term you clicked from your CPT is not
   assigned to any regular posts at all? That would explain the posts not found.
 * To get CPTs to be listed in category queries, you need to hook ‘pre_get_posts’.
   If you get the ‘post_type’ query var there, it’ll probably be `array('post');`
   Add your CPT to this array and set the modified array back to ‘post_type’. Of
   course, be sure your script verifies it’s a category query being handled before
   doing anything.
 * For some reason we don’t need to do this with custom taxonomy queries, only the
   default category and post_tag taxonomies have this quirk.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Custom post categories’ is closed to new replies.

## Tags

 * [categories](https://wordpress.org/support/topic-tag/categories/)
 * [custom posts](https://wordpress.org/support/topic-tag/custom-posts/)

 * In: [Hacks](https://wordpress.org/support/forum/plugins-and-hacks/hacks/)
 * 2 replies
 * 3 participants
 * Last reply from: [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/custom-post-categories-1/#post-5772345)
 * Status: not resolved

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