I've seen online that you can add all Custom Post Types to a WooCommerce cart as long as the CPT has a price field. The only issue is that you have to tell WooCommerce what CPT field contains the price.
Afterwords you can easily create an add-to-cart url like this:
https://yourdomain.com/?add-to-cart=XXX (XXX being the Custom Post Type post ID)
Why is this handy?
I have an online menu (just to inform my guest what we serve) but because of Corona we have to close our doors so I want these dishes to be ordered online.
The code should be something like this but the CPT is not added to cart:
add_filter('woocommerce_get_price', 'yl_get_dish_price', 20,2);
function yl_get_dish_price($price,$post) {
if ($post->post->post_type === 'dish') {
$price = get_field('price', $post->ID);
}
return $price;
}
UPDATE
I took this answer from here https://stackoverflow.com/a/60320662/10291365
class YL_Dish_Product extends WC_Product {
protected $post_type = 'dish';
public function get_type() {
return 'dish';
}
public function __construct( $product = 0 ) {
$this->supports[] = 'ajax_add_to_cart';
parent::__construct( $product );
}
// maybe overwrite other functions from WC_Product
}
class YL_Data_Store_CPT extends WC_Product_Data_Store_CPT {
public function read( &$product ) { // this is required
$product->set_defaults();
$post_object = get_post( $product->get_id() );
if ( ! $product->get_id() || ! $post_object || 'dish' !== $post_object->post_type ) {
throw new Exception( __( 'Invalid product.', 'woocommerce' ) );
}
$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 );
}
// maybe overwrite other functions from WC_Product_Data_Store_CPT
}
class YL_WC_Order_Item_Product extends WC_Order_Item_Product {
public function set_product_id( $value ) {
if ( $value > 0 && 'dish' !== get_post_type( absint( $value ) ) ) {
$this->error( 'order_item_product_invalid_product_id', __( 'Invalid product ID', 'woocommerce' ) );
}
$this->set_prop( 'product_id', absint( $value ) );
}
}
function YL_woocommerce_data_stores( $stores ) {
// the search is made for product-$post_type so note the required 'product-' in key name
$stores['product-dish'] = 'YL_Data_Store_CPT';
return $stores;
}
add_filter( 'woocommerce_data_stores', 'YL_woocommerce_data_stores' , 11, 1 );
function YL_woo_product_class( $class_name , $product_type , $product_id ) {
if ($product_type == 'dish')
$class_name = 'YL_Dish_Product';
return $class_name;
}
add_filter('woocommerce_product_class','YL_woo_product_class',25,3 );
function my_woocommerce_product_get_price( $price, $product ) {
if ($product->get_type() == 'dish' ) {
$price = 10; // or get price how ever you see fit
}
return $price;
}
add_filter('woocommerce_get_price','my_woocommerce_product_get_price',20,2);
add_filter('woocommerce_product_get_price', 'my_woocommerce_product_get_price', 10, 2 );
// required function for allowing posty_type to be added; maybe not the best but it works
function YL_woo_product_type($false,$product_id) {
if ($false === false) { // don't know why, but this is how woo does it
global $post;
// maybe redo it someday?!
if (is_object($post) && !empty($post)) { // post is set
if ($post->post_type == 'dish' && $post->ID == $product_id)
return 'dish';
else {
$product = get_post( $product_id );
if (is_object($product) && !is_wp_error($product)) { // post not set but it's a dish
if ($product->post_type == 'dish')
return 'dish';
} // end if
}
} else if(wp_doing_ajax()) { // has post set (usefull when adding using ajax)
$product_post = get_post( $product_id );
if ($product_post->post_type == 'dish')
return 'dish';
} else {
$product = get_post( $product_id );
if (is_object($product) && !is_wp_error($product)) { // post not set but it's a dish
if ($product->post_type == 'dish')
return 'dish';
} // end if
} // end if // end if
} // end if
return false;
}
add_filter('woocommerce_product_type_query','YL_woo_product_type',12,2 );
function YL_woocommerce_checkout_create_order_line_item_object($item, $cart_item_key, $values, $order) {
$product = $values['data'];
if ($product->get_type() == 'dish') {
return new YL_WC_Order_Item_Product();
} // end if
return $item ;
}
add_filter( 'woocommerce_checkout_create_order_line_item_object', 'YL_woocommerce_checkout_create_order_line_item_object', 20, 4 );
function cod_woocommerce_checkout_create_order_line_item($item,$cart_item_key,$values,$order) {
if ($values['data']->get_type() == 'dish') {
$item->update_meta_data( '_dish', 'yes' ); // add a way to recognize custom post type in ordered items
return;
} // end if
}
add_action( 'woocommerce_checkout_create_order_line_item', 'cod_woocommerce_checkout_create_order_line_item', 20, 4 );
function YL_woocommerce_get_order_item_classname($classname, $item_type, $id) {
global $wpdb;
$is_IA = $wpdb->get_var("SELECT meta_value FROM {$wpdb->prefix}woocommerce_order_itemmeta WHERE order_item_id = {$id} AND meta_key = '_dish'");
if ('yes' === $is_IA) { // load the new class if the item is our custom post
$classname = 'YL_WC_Order_Item_Product';
} // end if
return $classname;
}
add_filter( 'woocommerce_get_order_item_classname', 'YL_woocommerce_get_order_item_classname', 20, 3 );
The above code does add a CPT to your cart (GREAT!!) but the price is always set to 10,00
So the code below doesn't give the right price :(
add_filter('woocommerce_get_price', 'yl_get_dish_price', 20,2);
function yl_get_dish_price($price,$post) {
if ($post->post->post_type === 'dish') {
$price = get_field('price', $post->ID);
}
return $price;
}
Any idea?
Since WooCommerce 3, the hook woocommerce_get_price is obsolete and deprecated… It's replaced by the following composite hook:
add_filter( 'woocommerce_product_get_price', 'yl_get_dish_price', 20, 2 );
add_filter( 'woocommerce_product_get_regular_price', 'yl_get_dish_price', 20, 2 );
function yl_get_dish_price( $price, $product ) {
if ( $product->is_type('dish') ) {
$price = get_field( 'price', $product->get_id() );
}
return $price;
}
It could and should better work.