Woocommerce：如何在woocommerce_add_to_cart钩子上wc_add_order_item_meta？

Question

Use case:

1. user will choose the date for product from the list and add the product to cart by button
2. woocommerce_add_to_cart will trigger and

3. the date append to item as meta by wc_add_order_item_meta

    add_action( 'woocommerce_add_to_cart', 'add_event_date_meta', 10, 3 ); function add_event_date_meta($cart_item_key, $product_id, $quantity) { $event_date = get_cart_item_event_date(); $result = wc_add_order_item_meta( $product_id, '_event_date', $event_date); } 

The $result is valid id, but no '_event_date' meta is included in a checkout cart item. Is there something I do not understand properly? Meta key should be added to cart item while I recieved the id of it, or?

Answer 1

Thank You helgatheviking and LoicTheAztec for yours comments. The solution I found in helgatheviking 's tutorial . This is exactly what I was searching for:

    /*
     * Add custom data to the cart item
     * @param array $cart_item
     * @param int $product_id
     * @return array
     */
    function kia_add_cart_item_data( $cart_item, $product_id ){
       if( isset( $_POST['_custom_option'] ) ) {
          $cart_item['custom_option'] = sanitize_text_field( $_POST['_custom_option'] );
       }
       return $cart_item;
    }
    add_filter( 'woocommerce_add_cart_item_data', 'kia_add_cart_item_data', 10, 2 );