Question

在woocommerce插件文件class-wc-booking-cart-manager.php中有这段代码

/**
     * Constructor
     */
    public function __construct() {
        add_filter( 'woocommerce_add_cart_item', array( $this, 'add_cart_item' ), 10, 1 );
        }

/**
     * Adjust the price of the booking product based on booking properties
     *
     * @param mixed $cart_item
     * @return array cart item
     */
    public function add_cart_item( $cart_item ) {
        if ( ! empty( $cart_item['booking'] ) && ! empty( $cart_item['booking']['_cost'] ) ) {
            $cart_item['data']->set_price( $cart_item['booking']['_cost'] );
        }
        return $cart_item;
    }

我想将add_cart_item函数的代码更改为我的子主题functions.php文件

所以我这样做了：

function custom_add_cart_item($cart_item) {
    if (empty( $cart_item['booking'] ) && empty( $cart_item['booking']['_cost'] ) ) {
        $cart_item['data']->set_price(2000);
    }
    return $cart_item;
}


function setup_add_cart_item_filter(){
    remove_filter( 'woocommerce_add_cart_item', array('WC_Booking_Cart_Manager', 'add_cart_item' ), 10, 1 );
    add_filter('woocommerce_add_cart_item', 'custom_add_cart_item');
}

add_action( 'after_setup_theme', 'setup_add_cart_item_filter' );

但它不起作用。谢谢你的帮助！

Answer 1

您可以致电remove_all_filters('woocommerce_add_cart_item');删除现有的挂钩，然后在functions.php中调用add_filter( 'woocommerce_add_cart_item', 'your_new_add_cart_item' );

编辑：我错过了在主题主题之前加载了childtheme functions.php的一点，所以直接在functions.php中运行remove_all_filters()实际上是无用的......

我更新的答案是将这些调用包装在另一个函数中，并在主题设置短语后调用它们：

function setup_add_cart_item_filter(){
    remove_all_filters('woocommerce_add_cart_item');
    add_filter('woocommerce_add_cart_item', 'custom_add_cart_item');
}
add_action( 'after_setup_theme', 'setup_add_cart_item_filter' );

如何重写wordpress功能

1 个答案: