php – WooCommerce自定义产品类型 – 多个添加到购物车部分问题

你的问题可能来自这里：我认为你正在使用公共函数add_to_cart()一个现有的名称函数,你必须以不同的方式重命名它.

然后我重新访问了你的代码,based on this thread.

扩展WC_Product_Simple类而不是WC_Product类可能更好,因为您的产品使用简单的产品添加到购物车按钮模板：single-product / add-to-cart / simple.php.

使用此自定义代码,我不像您那样多个添加到购物车部分.

— @Update1 —
But you can still keep WC_Product extended instead of WC_Product_Simple. This way,as you requested in comment,your product type will be "simple_booking" as specified in 1st and 2nd functions. That does not mean that your product is simple (it’s just a slug that you can change,changing at the same time in both places).

So I have modified the code again and tested: It works…

这是我使用的代码(我已经测试过)：

/**
 * Register the custom product type after init
 */
function register_simple_booking_product_type() {

    /**
     * This should be in its own separate file.
     */
    class WC_Product_Booking extends WC_Product{ // <= changed back to WC_product class

        public function __construct( $product ) {

            $this->product_type = 'simple_booking';
            $this->supports[]   = 'ajax_add_to_cart';

            parent::__construct( $product );

            // As we extend simple product class,you may not need this anymore.
            add_action('woocommerce_booking_add_to_cart','simple_booking_add_to_cart'),30);

        }

    }

}
add_action( 'init','register_simple_booking_product_type' );

// Registering the slug name (YOU can CHANGE IT)
function add_simple_booking_product( $types ){

    // Key should be exactly the same as in the class product_type parameter
    $types[ 'simple_booking' ] = __( 'Simple booking' );

    return $types;

}
add_filter( 'product_type_selector','add_simple_booking_product' );

/**
 * Show pricing fields for simple_booking product.
 */
function simple_booking_custom_js() {

    if ( 'product' != get_post_type() ) :
        return;
    endif;

    ?><script type='text/javascript'>
        jQuery( document ).ready( function() {
            jQuery( '.options_group.pricing' ).addClass( 'show_if_simple_booking' ).show();
        });
    </script><?php
}
add_action( 'admin_footer','simple_booking_custom_js' );

// Not sure you will need that (because of the change of the extended class)
function simple_booking_add_to_cart() {
    wc_get_template( 'single-product/add-to-cart/simple.php' );
}

在位于活动子主题(或主题)中的function.php文件上测试此代码.

参考：Adding a custom WooCommerce product type

— @Update2 — The solution (find by the author of this question):

To puts the add-to-cart button once in the right place (to use it in your own custom product make an action called woocommerce_YOURPRODUCTTYPE_add_to_cart),with this code:

if (! function_exists( 'woocommerce_booking_add_to_cart' ) ) {

  /**
  * Output the simple product add to cart area.
  *
  * @subpackage Product
  */

  function booking_add_to_cart() {
    wc_get_template( 'single-product/add-to-cart/simple.php' );
  }

  add_action('woocommerce_booking_add_to_cart','booking_add_to_cart');
}