Adding a custom post / post type to Woocommerce

Question

I have a personal theme "A" and I want it to work without Woocommerce as well. When the Woocommerce "WC" plugin was added, I would integrate A products with WC. I have a custom message type called "objects", how can I make an "object" available for purchase through WC?

I already saw this answer on StackOverflow Adding custom message types to Woocommerce Where the solution at the end gives a free (no more) plugin for the solution.

I would rather do it myself, without the help of a plugin. I am curious, and a preliminary decision is not what I am looking for.

Answer 1

We can try the easy thing. You want the custom post type to retain your products, and when WooCommerce is integrated, the added products in your custom post type can work like woocommerce products.

• Check if woocommerce ot not is installed.

• If not, create your own message type as a “product” (similar to woocommerce).

• Add custom fields similar to Woocommerce and add products to them. (Image added for custom fields using Woocommerce)
• Now add products for a custom message type, and when woocommerce is added, it will have a problem with the custom message type already existing.
• So, if in the future you want to add woocommerce to your website, disable the register_post_Type function and install WooCommerce.
• All products created in the custom message type will be visible in the Woocommerce product variants.

To check if woocommerce is active or not to use this code

<?php if ( class_exists( 'WooCommerce' ) ) { // code that requires WooCommerce } else { // you don't appear to have WooCommerce activated } ?> 

Answer 2

I have created a simple tutorial since adding it here will be too long.

To achieve your goal, your message type must have a price. However, the custom price field must have the _price meta key.

if you already have a meta key that is not _price , you can add the filter to woocommerce_get_price shown below.

 add_filter('woocommerce_get_price','reigel_woocommerce_get_price',20,2); function reigel_woocommerce_get_price($price,$post){ if ($post->post->post_type === 'post') // change this to your post type $price = get_post_meta($post->id, "price", true); // assuming your price meta key is price return $price; } 

With this, now you can add any message to your message type in the basket. Do it like http://localhost/wordpress/cart/?add-to-cart=1 , where 1 is the identifier of your message in your message type.

Sample image result after visiting this link:

Now you need to customize the form as shown below.

 <form action="" method="post"> <input name="add-to-cart" type="hidden" value="<?php echo $post->ID ?>" /> <input name="quantity" type="number" value="1" min="1" /> <input name="submit" type="submit" value="Add to cart" /> </form> 

you need this to get the "Add to Cart" button. The name of the inputs should be as is.

Answer 3

I ran into the same problem. After spending days, I figured out how this should work and its solution.

Here is what i did

• Save meta as _price for my custom post

• The if condition in the woocommerce/includes/class-wc-product-factory.php get_product_class function has been get_product_class as follows:

  before

   if ( 'product' === $post_type){ 

  after

   if ( 'product' === $post_type || 'packages' === $post_type ){ 

It worked great.

Now I want to change this type of product using some filtering method. Can anyone tell me about this:

 if ( 'product' === $post_type || 'packages' === $post_type ){ 

Answer 4

I am selling a plugin that will allow you to use Custom Post Type as a WooCommerce “product” . I worked a lot on this to make it compatible with WooCommerce 3.0

But here is the most important part.
You must create your own data warehouse, for example:

first create a class that extends to WC_Product_Data_Store_CPT . The idea is to overwrite an existing function of this class that checks the type of message. I found read and get_product_type , which does the check.

 class WCCPT_Product_Data_Store_CPT extends WC_Product_Data_Store_CPT { /** * Method to read a product from the database. * @param WC_Product */ public function read( &$product ) { $product->set_defaults(); if ( ! $product->get_id() || ! ( $post_object = get_post( $product->get_id() ) ) || ! in_array( $post_object->post_type, array( 'birds', 'product' ) ) ) { // change birds with your post type throw new Exception( __( 'Invalid product.', 'woocommerce' ) ); } $id = $product->get_id(); $product->set_props( array( 'name' => $post_object->post_title, 'slug' => $post_object->post_name, 'date_created' => 0 < $post_object->post_date_gmt ? wc_string_to_timestamp( $post_object->post_date_gmt ) : null, 'date_modified' => 0 < $post_object->post_modified_gmt ? wc_string_to_timestamp( $post_object->post_modified_gmt ) : null, 'status' => $post_object->post_status, 'description' => $post_object->post_content, 'short_description' => $post_object->post_excerpt, 'parent_id' => $post_object->post_parent, 'menu_order' => $post_object->menu_order, 'reviews_allowed' => 'open' === $post_object->comment_status, ) ); $this->read_attributes( $product ); $this->read_downloads( $product ); $this->read_visibility( $product ); $this->read_product_data( $product ); $this->read_extra_data( $product ); $product->set_object_read( true ); } /** * Get the product type based on product ID. * * @since 3.0.0 * @param int $product_id * @return bool|string */ public function get_product_type( $product_id ) { $post_type = get_post_type( $product_id ); if ( 'product_variation' === $post_type ) { return 'variation'; } elseif ( in_array( $post_type, array( 'birds', 'product' ) ) ) { // change birds with your post type $terms = get_the_terms( $product_id, 'product_type' ); return ! empty( $terms ) ? sanitize_title( current( $terms )->name ) : 'simple'; } else { return false; } } } 

after that add a filter to woocommerce_data_stores and use your class.

 add_filter( 'woocommerce_data_stores', 'woocommerce_data_stores' ); function woocommerce_data_stores ( $stores ) { $stores['product'] = 'WCCPT_Product_Data_Store_CPT'; return $stores; } 

with this you can add the message type of birds to the cart. But in reality it will not be successful to add to the basket. Because there is no price, the basket will reject it.

To solve this problem, you need one more filter. Below is an easy way to add a price.

 add_filter('woocommerce_product_get_price', 'woocommerce_product_get_price', 10, 2 ); function woocommerce_product_get_price( $price, $product ) { if ($product->get_id() == 815 ) { $price = 10; } return $price; } 

Once this is done, you will have a successful addition to the cart.

Answer 5

Hi, someone, help me, I want to sort the order field in a WooCommerce product like the following

enter image description here

i did but direct in woocommerce includes /class-wc-post-types.php file change

 <?php 

/ ** * Record types * * Registration of record types and taxonomies. * * @package WooCommerce / Classes / Products * @version 2.5.0 * /

defined ('ABSPATH') || exit;

/ ** * Message types Class. * / class WC_Post_Types {

 /** * Hook in methods. */ public static function init() { add_action( 'init', array( __CLASS__, 'register_taxonomies' ), 5 ); add_action( 'init', array( __CLASS__, 'register_post_types' ), 5 ); add_action( 'init', array( __CLASS__, 'register_post_status' ), 9 ); add_action( 'init', array( __CLASS__, 'support_jetpack_omnisearch' ) ); add_filter( 'rest_api_allowed_post_types', array( __CLASS__, 'rest_api_allowed_post_types' ) ); add_action( 'woocommerce_after_register_post_type', array( __CLASS__, 'maybe_flush_rewrite_rules' ) ); add_action( 'woocommerce_flush_rewrite_rules', array( __CLASS__, 'flush_rewrite_rules' ) ); add_filter( 'gutenberg_can_edit_post_type', array( __CLASS__, 'gutenberg_can_edit_post_type' ), 10, 2 ); add_filter( 'use_block_editor_for_post_type', array( __CLASS__, 'gutenberg_can_edit_post_type' ), 10, 2 ); } /** * Register core taxonomies. */ public static function register_taxonomies() { if ( ! is_blog_installed() ) { return; } if ( taxonomy_exists( 'product_type' ) ) { return; } do_action( 'woocommerce_register_taxonomy' ); $permalinks = wc_get_permalink_structure(); register_taxonomy( 'product_type', apply_filters( 'woocommerce_taxonomy_objects_product_type', array( 'product' ) ), apply_filters( 'woocommerce_taxonomy_args_product_type', array( 'hierarchical' => false, 'show_ui' => false, 'show_in_nav_menus' => false, 'query_var' => is_admin(), 'rewrite' => false, 'public' => false, ) ) ); register_taxonomy( 'product_visibility', apply_filters( 'woocommerce_taxonomy_objects_product_visibility', array( 'product', 'product_variation' ) ), apply_filters( 'woocommerce_taxonomy_args_product_visibility', array( 'hierarchical' => false, 'show_ui' => false, 'show_in_nav_menus' => false, 'query_var' => is_admin(), 'rewrite' => false, 'public' => false, ) ) ); register_taxonomy( 'product_cat', apply_filters( 'woocommerce_taxonomy_objects_product_cat', array( 'product' ) ), apply_filters( 'woocommerce_taxonomy_args_product_cat', array( 'hierarchical' => true, 'update_count_callback' => '_wc_term_recount', 'label' => __( 'Categories', 'woocommerce' ), 'labels' => array( 'name' => __( 'Product categories', 'woocommerce' ), 'singular_name' => __( 'Category', 'woocommerce' ), 'menu_name' => _x( 'Categories', 'Admin menu name', 'woocommerce' ), 'search_items' => __( 'Search categories', 'woocommerce' ), 'all_items' => __( 'All categories', 'woocommerce' ), 'parent_item' => __( 'Parent category', 'woocommerce' ), 'parent_item_colon' => __( 'Parent category:', 'woocommerce' ), 'edit_item' => __( 'Edit category', 'woocommerce' ), 'update_item' => __( 'Update category', 'woocommerce' ), 'add_new_item' => __( 'Add new category', 'woocommerce' ), 'new_item_name' => __( 'New category name', 'woocommerce' ), 'not_found' => __( 'No categories found', 'woocommerce' ), ), 'show_ui' => true, 'query_var' => true, 'capabilities' => array( 'manage_terms' => 'manage_product_terms', 'edit_terms' => 'edit_product_terms', 'delete_terms' => 'delete_product_terms', 'assign_terms' => 'assign_product_terms', ), 'rewrite' => array( 'slug' => $permalinks['category_rewrite_slug'], 'with_front' => false, 'hierarchical' => true, ), ) ) ); register_taxonomy( 'product_tag', apply_filters( 'woocommerce_taxonomy_objects_product_tag', array( 'product' ) ), apply_filters( 'woocommerce_taxonomy_args_product_tag', array( 'hierarchical' => false, 'update_count_callback' => '_wc_term_recount', 'label' => __( 'Product tags', 'woocommerce' ), 'labels' => array( 'name' => __( 'Product tags', 'woocommerce' ), 'singular_name' => __( 'Tag', 'woocommerce' ), 'menu_name' => _x( 'Tags', 'Admin menu name', 'woocommerce' ), 'search_items' => __( 'Search tags', 'woocommerce' ), 'all_items' => __( 'All tags', 'woocommerce' ), 'edit_item' => __( 'Edit tag', 'woocommerce' ), 'update_item' => __( 'Update tag', 'woocommerce' ), 'add_new_item' => __( 'Add new tag', 'woocommerce' ), 'new_item_name' => __( 'New tag name', 'woocommerce' ), 'popular_items' => __( 'Popular tags', 'woocommerce' ), 'separate_items_with_commas' => __( 'Separate tags with commas', 'woocommerce' ), 'add_or_remove_items' => __( 'Add or remove tags', 'woocommerce' ), 'choose_from_most_used' => __( 'Choose from the most used tags', 'woocommerce' ), 'not_found' => __( 'No tags found', 'woocommerce' ), ), 'show_ui' => true, 'query_var' => true, 'capabilities' => array( 'manage_terms' => 'manage_product_terms', 'edit_terms' => 'edit_product_terms', 'delete_terms' => 'delete_product_terms', 'assign_terms' => 'assign_product_terms', ), 'rewrite' => array( 'slug' => $permalinks['tag_rewrite_slug'], 'with_front' => false, ), ) ) ); register_taxonomy( 'product_shipping_class', apply_filters( 'woocommerce_taxonomy_objects_product_shipping_class', array( 'product', 'product_variation' ) ), apply_filters( 'woocommerce_taxonomy_args_product_shipping_class', array( 'hierarchical' => false, 'update_count_callback' => '_update_post_term_count', 'label' => __( 'Shipping classes', 'woocommerce' ), 'labels' => array( 'name' => __( 'Product shipping classes', 'woocommerce' ), 'singular_name' => __( 'Shipping class', 'woocommerce' ), 'menu_name' => _x( 'Shipping classes', 'Admin menu name', 'woocommerce' ), 'search_items' => __( 'Search shipping classes', 'woocommerce' ), 'all_items' => __( 'All shipping classes', 'woocommerce' ), 'parent_item' => __( 'Parent shipping class', 'woocommerce' ), 'parent_item_colon' => __( 'Parent shipping class:', 'woocommerce' ), 'edit_item' => __( 'Edit shipping class', 'woocommerce' ), 'update_item' => __( 'Update shipping class', 'woocommerce' ), 'add_new_item' => __( 'Add new shipping class', 'woocommerce' ), 'new_item_name' => __( 'New shipping class Name', 'woocommerce' ), ), 'show_ui' => false, 'show_in_quick_edit' => false, 'show_in_nav_menus' => false, 'query_var' => is_admin(), 'capabilities' => array( 'manage_terms' => 'manage_product_terms', 'edit_terms' => 'edit_product_terms', 'delete_terms' => 'delete_product_terms', 'assign_terms' => 'assign_product_terms', ), 'rewrite' => false, ) ) ); global $wc_product_attributes; $wc_product_attributes = array(); $attribute_taxonomies = wc_get_attribute_taxonomies(); if ( $attribute_taxonomies ) { foreach ( $attribute_taxonomies as $tax ) { $name = wc_attribute_taxonomy_name( $tax->attribute_name ); if ( $name ) { $tax->attribute_public = absint( isset( $tax->attribute_public ) ? $tax->attribute_public : 1 ); $label = ! empty( $tax->attribute_label ) ? $tax->attribute_label : $tax->attribute_name; $wc_product_attributes[ $name ] = $tax; $taxonomy_data = array( 'hierarchical' => false, 'update_count_callback' => '_update_post_term_count', 'labels' => array( /* translators: %s: attribute name */ 'name' => sprintf( _x( 'Product %s', 'Product Attribute', 'woocommerce' ), $label ), 'singular_name' => $label, /* translators: %s: attribute name */ 'search_items' => sprintf( __( 'Search %s', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'all_items' => sprintf( __( 'All %s', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'parent_item' => sprintf( __( 'Parent %s', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'parent_item_colon' => sprintf( __( 'Parent %s:', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'edit_item' => sprintf( __( 'Edit %s', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'update_item' => sprintf( __( 'Update %s', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'add_new_item' => sprintf( __( 'Add new %s', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'new_item_name' => sprintf( __( 'New %s', 'woocommerce' ), $label ), /* translators: %s: attribute name */ 'not_found' => sprintf( __( 'No &quot;%s&quot; found', 'woocommerce' ), $label ), ), 'show_ui' => true, 'show_in_quick_edit' => false, 'show_in_menu' => false, 'meta_box_cb' => false, 'query_var' => 1 === $tax->attribute_public, 'rewrite' => false, 'sort' => false, 'public' => 1 === $tax->attribute_public, 'show_in_nav_menus' => 1 === $tax->attribute_public && apply_filters( 'woocommerce_attribute_show_in_nav_menus', false, $name ), 'capabilities' => array( 'manage_terms' => 'manage_product_terms', 'edit_terms' => 'edit_product_terms', 'delete_terms' => 'delete_product_terms', 'assign_terms' => 'assign_product_terms', ), ); if ( 1 === $tax->attribute_public && sanitize_title( $tax->attribute_name ) ) { $taxonomy_data['rewrite'] = array( 'slug' => trailingslashit( $permalinks['attribute_rewrite_slug'] ) . sanitize_title( $tax->attribute_name ), 'with_front' => false, 'hierarchical' => true, ); } register_taxonomy( $name, apply_filters( "woocommerce_taxonomy_objects_{$name}", array( 'product' ) ), apply_filters( "woocommerce_taxonomy_args_{$name}", $taxonomy_data ) ); } } } do_action( 'woocommerce_after_register_taxonomy' ); } /** * Register core post types. */ public static function register_post_types() { if ( ! is_blog_installed() || post_type_exists( 'product' ) ) { return; } do_action( 'woocommerce_register_post_type' ); $permalinks = wc_get_permalink_structure(); $supports = array( 'title', 'editor', 'excerpt', 'thumbnail', 'custom-fields', 'publicize', 'wpcom-markdown', 'page-attributes' ); if ( 'yes' === get_option( 'woocommerce_enable_reviews', 'yes' ) ) { $supports[] = 'comments'; } $shop_page_id = wc_get_page_id( 'shop' ); if ( current_theme_supports( 'woocommerce' ) ) { $has_archive = $shop_page_id && get_post( $shop_page_id ) ? urldecode( get_page_uri( $shop_page_id ) ) : 'shop'; } else { $has_archive = false; } // If theme support changes, we may need to flush permalinks since some are changed based on this flag. if ( update_option( 'current_theme_supports_woocommerce', current_theme_supports( 'woocommerce' ) ? 'yes' : 'no' ) ) { update_option( 'woocommerce_queue_flush_rewrite_rules', 'yes' ); } register_post_type( 'product', apply_filters( 'woocommerce_register_post_type_product', array( 'labels' => array( 'name' => __( 'Products', 'woocommerce' ), 'singular_name' => __( 'Product', 'woocommerce' ), 'all_items' => __( 'All Products', 'woocommerce' ), 'menu_name' => _x( 'Products', 'Admin menu name', 'woocommerce' ), 'add_new' => __( 'Add New', 'woocommerce' ), 'add_new_item' => __( 'Add new product', 'woocommerce' ), 'edit' => __( 'Edit', 'woocommerce' ), 'edit_item' => __( 'Edit product', 'woocommerce' ), 'new_item' => __( 'New product', 'woocommerce' ), 'view_item' => __( 'View product', 'woocommerce' ), 'view_items' => __( 'View products', 'woocommerce' ), 'search_items' => __( 'Search products', 'woocommerce' ), 'not_found' => __( 'No products found', 'woocommerce' ), 'not_found_in_trash' => __( 'No products found in trash', 'woocommerce' ), 'parent' => __( 'Parent product', 'woocommerce' ), 'featured_image' => __( 'Product image', 'woocommerce' ), 'set_featured_image' => __( 'Set product image', 'woocommerce' ), 'remove_featured_image' => __( 'Remove product image', 'woocommerce' ), 'use_featured_image' => __( 'Use as product image', 'woocommerce' ), 'insert_into_item' => __( 'Insert into product', 'woocommerce' ), 'uploaded_to_this_item' => __( 'Uploaded to this product', 'woocommerce' ), 'filter_items_list' => __( 'Filter products', 'woocommerce' ), 'items_list_navigation' => __( 'Products navigation', 'woocommerce' ), 'items_list' => __( 'Products list', 'woocommerce' ), ), 'description' => __( 'This is where you can add new products to your store.', 'woocommerce' ), 'public' => true, 'show_ui' => true, 'capability_type' => 'product', 'map_meta_cap' => true, 'publicly_queryable' => true, 'exclude_from_search' => false, 'hierarchical' => false, // Hierarchical causes memory issues - WP loads all records! 'rewrite' => $permalinks['product_rewrite_slug'] ? array( 'slug' => $permalinks['product_rewrite_slug'], 'with_front' => false, 'feeds' => true, ) : false, 'query_var' => true, 'supports' => $supports, 'has_archive' => $has_archive, 'show_in_nav_menus' => true, 'show_in_rest' => true, ) ) ); register_post_type( 'product_variation', apply_filters( 'woocommerce_register_post_type_product_variation', array( 'label' => __( 'Variations', 'woocommerce' ), 'public' => false, 'hierarchical' => false, 'supports' => false, 'capability_type' => 'product', 'rewrite' => false, ) ) ); wc_register_order_type( 'shop_order', apply_filters( 'woocommerce_register_post_type_shop_order', array( 'labels' => array( 'name' => __( 'Orders', 'woocommerce' ), 'singular_name' => _x( 'Order', 'shop_order post type singular name', 'woocommerce' ), 'add_new' => __( 'Add order', 'woocommerce' ), 'add_new_item' => __( 'Add new order', 'woocommerce' ), 'edit' => __( 'Edit', 'woocommerce' ), 'edit_item' => __( 'Edit order', 'woocommerce' ), 'new_item' => __( 'New order', 'woocommerce' ), 'view_item' => __( 'View order', 'woocommerce' ), 'search_items' => __( 'Search orders', 'woocommerce' ), 'not_found' => __( 'No orders found', 'woocommerce' ), 'not_found_in_trash' => __( 'No orders found in trash', 'woocommerce' ), 'parent' => __( 'Parent orders', 'woocommerce' ), 'menu_name' => _x( 'Orders', 'Admin menu name', 'woocommerce' ), 'filter_items_list' => __( 'Filter orders', 'woocommerce' ), 'items_list_navigation' => __( 'Orders navigation', 'woocommerce' ), 'items_list' => __( 'Orders list', 'woocommerce' ), ), 'description' => __( 'This is where store orders are stored.', 'woocommerce' ), 'public' => false, 'show_ui' => true, 'capability_type' => 'shop_order', 'map_meta_cap' => true, 'publicly_queryable' => false, 'exclude_from_search' => true, 'show_in_menu' => current_user_can( 'manage_woocommerce' ) ? 'woocommerce' : true, 'hierarchical' => false, 'show_in_nav_menus' => false, 'rewrite' => false, 'query_var' => false, 'supports' => array( 'title', 'comments', 'custom-fields' ), 'has_archive' => false, ) ) ); wc_register_order_type( 'shop_order_refund', apply_filters( 'woocommerce_register_post_type_shop_order_refund', array( 'label' => __( 'Refunds', 'woocommerce' ), 'capability_type' => 'shop_order', 'public' => false, 'hierarchical' => false, 'supports' => false, 'exclude_from_orders_screen' => false, 'add_order_meta_boxes' => false, 'exclude_from_order_count' => true, 'exclude_from_order_views' => false, 'exclude_from_order_reports' => false, 'exclude_from_order_sales_reports' => true, 'class_name' => 'WC_Order_Refund', 'rewrite' => false, ) ) ); if ( 'yes' === get_option( 'woocommerce_enable_coupons' ) ) { register_post_type( 'shop_coupon', apply_filters( 'woocommerce_register_post_type_shop_coupon', array( 'labels' => array( 'name' => __( 'Coupons', 'woocommerce' ), 'singular_name' => __( 'Coupon', 'woocommerce' ), 'menu_name' => _x( 'Coupons', 'Admin menu name', 'woocommerce' ), 'add_new' => __( 'Add coupon', 'woocommerce' ), 'add_new_item' => __( 'Add new coupon', 'woocommerce' ), 'edit' => __( 'Edit', 'woocommerce' ), 'edit_item' => __( 'Edit coupon', 'woocommerce' ), 'new_item' => __( 'New coupon', 'woocommerce' ), 'view_item' => __( 'View coupon', 'woocommerce' ), 'search_items' => __( 'Search coupons', 'woocommerce' ), 'not_found' => __( 'No coupons found', 'woocommerce' ), 'not_found_in_trash' => __( 'No coupons found in trash', 'woocommerce' ), 'parent' => __( 'Parent coupon', 'woocommerce' ), 'filter_items_list' => __( 'Filter coupons', 'woocommerce' ), 'items_list_navigation' => __( 'Coupons navigation', 'woocommerce' ), 'items_list' => __( 'Coupons list', 'woocommerce' ), ), 'description' => __( 'This is where you can add new coupons that customers can use in your store.', 'woocommerce' ), 'public' => false, 'show_ui' => true, 'capability_type' => 'shop_coupon', 'map_meta_cap' => true, 'publicly_queryable' => false, 'exclude_from_search' => true, 'show_in_menu' => current_user_can( 'manage_woocommerce' ) ? 'woocommerce' : true, 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, 'supports' => array( 'title' ), 'show_in_nav_menus' => false, 'show_in_admin_bar' => true, ) ) ); } do_action( 'woocommerce_after_register_post_type' ); } /** * Register our custom post statuses, used for order status. */ public static function register_post_status() { $order_statuses = apply_filters( 'woocommerce_register_shop_order_post_statuses', array( 'wc-pending' => array( 'label' => _x( 'Pending payment', 'Order status', 'woocommerce' ), 'public' => false, 'exclude_from_search' => false, 'show_in_admin_all_list' => true, 'show_in_admin_status_list' => true, /* translators: %s: number of orders */ 'label_count' => _n_noop( 'Pending payment <span class="count">(%s)</span>', 'Pending payment <span class="count">(%s)</span>', 'woocommerce' ), ), 'wc-processing' => array( 'label' => _x( 'Processing', 'Order status', 'woocommerce' ), 'public' => false, 'exclude_from_search' => false, 'show_in_admin_all_list' => true, 'show_in_admin_status_list' => true, /* translators: %s: number of orders */ 'label_count' => _n_noop( 'Processing <span class="count">(%s)</span>', 'Processing <span class="count">(%s)</span>', 'woocommerce' ), ), 'wc-on-hold' => array( 'label' => _x( 'On hold', 'Order status', 'woocommerce' ), 'public' => false, 'exclude_from_search' => false, 'show_in_admin_all_list' => true, 'show_in_admin_status_list' => true, /* translators: %s: number of orders */ 'label_count' => _n_noop( 'On hold <span class="count">(%s)</span>', 'On hold <span class="count">(%s)</span>', 'woocommerce' ), ), 'wc-completed' => array( 'label' => _x( 'Completed', 'Order status', 'woocommerce' ), 'public' => false, 'exclude_from_search' => false, 'show_in_admin_all_list' => true, 'show_in_admin_status_list' => true, /* translators: %s: number of orders */ 'label_count' => _n_noop( 'Completed <span class="count">(%s)</span>', 'Completed <span class="count">(%s)</span>', 'woocommerce' ), ), 'wc-cancelled' => array( 'label' => _x( 'Cancelled', 'Order status', 'woocommerce' ), 'public' => false, 'exclude_from_search' => false, 'show_in_admin_all_list' => true, 'show_in_admin_status_list' => true, /* translators: %s: number of orders */ 'label_count' => _n_noop( 'Cancelled <span class="count">(%s)</span>', 'Cancelled <span class="count">(%s)</span>', 'woocommerce' ), ), 'wc-refunded' => array( 'label' => _x( 'Refunded', 'Order status', 'woocommerce' ), 'public' => false, 'exclude_from_search' => false, 'show_in_admin_all_list' => true, 'show_in_admin_status_list' => true, /* translators: %s: number of orders */ 'label_count' => _n_noop( 'Refunded <span class="count">(%s)</span>', 'Refunded <span class="count">(%s)</span>', 'woocommerce' ), ), 'wc-failed' => array( 'label' => _x( 'Failed', 'Order status', 'woocommerce' ), 'public' => false, 'exclude_from_search' => false, 'show_in_admin_all_list' => true, 'show_in_admin_status_list' => true, /* translators: %s: number of orders */ 'label_count' => _n_noop( 'Failed <span class="count">(%s)</span>', 'Failed <span class="count">(%s)</span>', 'woocommerce' ), ), ) ); foreach ( $order_statuses as $order_status => $values ) { register_post_status( $order_status, $values ); } } /** * Flush rules if the event is queued. * * @since 3.3.0 */ public static function maybe_flush_rewrite_rules() { if ( 'yes' === get_option( 'woocommerce_queue_flush_rewrite_rules' ) ) { update_option( 'woocommerce_queue_flush_rewrite_rules', 'no' ); self::flush_rewrite_rules(); } } /** * Flush rewrite rules. */ public static function flush_rewrite_rules() { flush_rewrite_rules(); } /** * Disable Gutenberg for products. * * @param bool $can_edit Whether the post type can be edited or not. * @param string $post_type The post type being checked. * @return bool */ public static function gutenberg_can_edit_post_type( $can_edit, $post_type ) { return 'product' === $post_type ? false : $can_edit; } /** * Add Product Support to Jetpack Omnisearch. */ public static function support_jetpack_omnisearch() { if ( class_exists( 'Jetpack_Omnisearch_Posts' ) ) { new Jetpack_Omnisearch_Posts( 'product' ); } } /** * Added product for Jetpack related posts. * * @param array $post_types Post types. * @return array */ public static function rest_api_allowed_post_types( $post_types ) { $post_types[] = 'product'; return $post_types; } 

}

WC_Post_types :: Init ();

I have changed the variable $ supports adding an additional value to the 'page attributes' array

$ support = array ('title', 'editor', 'excerpt', 'thumbnail', 'custom-fields', 'publicize', 'wpcom-markdown', 'page-attribute');

Now, how to add this attribute to $ supports a variable without modifying the kernel?