Custom post types, taxonomies, and permalinks

5 comments

1. Change slug in your post type arguments to products/%product_cat%, and slug in your taxonomy arguments to just products, then flush your rewrite rules. WordPress should now handle /products/my-product-cat/post-name/!

   Now finally, we need to help WordPress a little with generating permalinks (out of the box, it won’t recognise the permastruct tag %product_cat%):

   /**
    * Inject term slug into custom post type permastruct.
    * 
    * @link   http://wordpress.stackexchange.com/a/5313/1685
    * 
    * @param  string  $link
    * @param  WP_Post $post 
    * @return array
    */
   function wpse_5308_post_type_link( $link, $post ) {
       if ( $post->post_type === 'product_listing' ) {
           if ( $terms = get_the_terms( $post->ID, 'product_cat' ) )
               $link = str_replace( '%product_cat%', current( $terms )->slug, $link );
       }
   
       return $link;
   }
   
   add_filter( 'post_type_link', 'wpse_5308_post_type_link', 10, 2 );
   

   One thing to note, this will just grab the first product category for the post ordered by name. If you’re assigning multiple categories to a single product, I can easily change how it determines which one to use in the permalink.

   Lemme know how you get on with this, and we can tackle the other issues!

2. Thanks @TheDeadMechanic, your answer helped me out, but only partially. I wanted to do the same thing @RodeoRamsey asked for, but with nested categories (ie: mysite.com/products/category1/child-category-1/grandchild-category-1/product-name) and your solution didn’t work for that.

   I finally came up with an extended solution to my question that works, so if anyone else needs nested categories/subcategories you can see a detailed solution on my own question. Hope it helps others, and thanks for the initial steps.

3. I’m not sure wp supports that structure out of the box – but you can very easily create your own rewrite rules to do so.

   Check out a previous answer here Author url rewrite.

   You can change the line

   $newrules['author/([^/]+)/songs/?$'] = 'index.php?post_type=songs&author=$matches[1]';
   

   to something like

   $newrules['products/([^/]+)/([^/]+)/?$'] = 'index.php?post_type=product_listing&product_cat=$matches[1]&name=$matches[2]';
   

   the product_cat part here may be superfluous – I am not sure if it is needed.

   You can add any rules you like and they will have priority over the inbuilt ones.

4. Yeah it was driving me crazy before setting the permalink for custom post type. I found a plugin to handle the custom post type. It’s very easy to use.
   http://wordpress.org/extend/plugins/custom-post-permalinks/
   WP should add this as a core feature!
   Leo

5. Actually, it’s pretty easy. You just need one line. Here’s my code

   function create_product_taxonomies()
   {
   // Add new taxonomy, make it hierarchical (like categories)
       $labels = array(
           'name' => _x('Categories', 'taxonomy general name'),
           'singular_name' => _x('Category', 'taxonomy singular name'),
           'search_items' => __('Search Categories'),
           'all_items' => __('All Categories'),
           'parent_item' => __('Parent Categories'),
           'parent_item_colon' => __('Parent Categories:'),
           'edit_item' => __('Edit Category'),
           'update_item' => __('Update Category'),
           'add_new_item' => __('Add New Category'),
           'new_item_name' => __('New Category Name'),
           'menu_name' => __('Category'),
       );
   
       register_taxonomy('product_cat', array('product_listing'), array(
           'hierarchical' => true,
           'labels' => $labels,
           'show_ui' => true,
           'query_var' => true,
           'rewrite' => array('hierarchical' => true),
       ));
   

   And applied to the generated taxonomy for my Reviews CPT from GenerateWP.com. I’m using this on my own WordPress site, https://www.wpstarters.com

   function reviews_category_taxonomy() {
   
       $labels = array(
           'name'                       => _x( 'Reviews Categories', 'Taxonomy General Name', 'reviews_category' ),
           'singular_name'              => _x( 'Reviews Category', 'Taxonomy Singular Name', 'reviews_category' ),
           'menu_name'                  => __( 'Reviews Category', 'reviews_category' ),
           'all_items'                  => __( 'All Review Categories', 'reviews_category' ),
           'parent_item'                => __( 'Parent Review Category', 'reviews_category' ),
           'parent_item_colon'          => __( 'Parent Review Category:', 'reviews_category' ),
           'new_item_name'              => __( 'New Review Category Name', 'reviews_category' ),
           'add_new_item'               => __( 'Add New Review Category', 'reviews_category' ),
           'edit_item'                  => __( 'Edit Review Category', 'reviews_category' ),
           'update_item'                => __( 'Update Review Category', 'reviews_category' ),
           'view_item'                  => __( 'View Review Category', 'reviews_category' ),
           'separate_items_with_commas' => __( 'Separate items with commas', 'reviews_category' ),
           'add_or_remove_items'        => __( 'Add or remove items', 'reviews_category' ),
           'choose_from_most_used'      => __( 'Choose from the most used', 'reviews_category' ),
           'popular_items'              => __( 'Popular Review Categories', 'reviews_category' ),
           'search_items'               => __( 'Search Items', 'reviews_category' ),
           'not_found'                  => __( 'Not Found', 'reviews_category' ),
           'no_terms'                   => __( 'No Review Categories', 'reviews_category' ),
           'items_list'                 => __( 'Review Categories list', 'reviews_category' ),
           'items_list_navigation'      => __( 'Review Categories list navigation', 'reviews_category' ),
       );
       $args = array(
           'labels'                     => $labels,
           'hierarchical'               => true,
           'public'                     => true,
           'show_ui'                    => true,
           'show_admin_column'          => true,
           'show_in_nav_menus'          => true,
           'show_tagcloud'              => false,
           'show_in_rest'               => true,
           'rewrite' => array( 'hierarchical' => true ),
       );
       register_taxonomy( 'reviews_category', array( 'wps_reviews' ), $args );
   
   }
   add_action( 'init', 'reviews_category_taxonomy', 0 );
   

   All you need it so put the ‘rewrite’ => array(‘hierarchical’ => true),

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