根据 WooCommerce 中的总支出，每位用户仅自动应用优惠券一次

我想根据客户总消费金额自动应用优惠券。此优惠券仅需客户使用一次。

这是我到目前为止所尝试过的，但我得到了一个空白屏幕：

add_action( 'woocommerce_before_calculate_totals', 'loyalty_order_discount', 10, 1 );

function loyalty_order_discount( $order_id ) {
    global $woocommerce;

    $coupon = 'loyaltydiscount';
    $customer = new WC_Customer(get_current_user_id());
    $total_spent = 30;

    $order = wc_get_order( $order_id );

    foreach( $order->get_used_coupons( $customer ) as $coupon_name ){

        // Retrieving the coupon ID
        $coupon_post_obj = get_page_by_title($coupon_name, OBJECT, 'shop_coupon');
        $coupon_id = $coupon_post_obj->ID;

        $coupons_obj = new WC_Coupon($coupon_id);

        if( $coupons_obj == $coupon && $customer->get_total_spent() < $total_spent ){
            $woocommerce->cart->remove_coupon( $coupon );
        }
        elseif ( ! $coupons_obj == $coupon && $customer->get_total_spent() >= $total_spent){
            $woocommerce->cart->add_discount( $coupon );
        }
    }
}

任何帮助表示赞赏。

首先，您需要将优惠券的“每个用户使用限制”选项设置为 1（并保存） like:

现在，以下重新访问的代码将仅在客户总支出达到定义金额时自动应用特定优惠券一次：

add_action( 'woocommerce_before_calculate_totals', 'enable_customer_loyalty_discount', 10, 1 );
function enable_customer_loyalty_discount( $cart ) {
    if ( ( is_admin() && ! defined( 'DOING_AJAX' ) ) || ! is_user_logged_in() )
        return;

    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    //Your settings below
    $coupon_code = 'loyaltydiscount';
    $coupon_code = 'summer';
    $total_spent = 30;

    if( ! in_array( $coupon_code, $cart->get_applied_coupons() ) ) {
        $user_id  = get_current_user_id(); // User ID

        // Get the WC_Customer instance Object
        $customer = New WC_Customer( $user_id );
        $email    = $customer->get_billing_email(); // Billing email

        // If the user total spent has not reached the define amount, we exit
        if( $customer->get_total_spent() < $total_spent ) {
            return;
        }

        // Get the WC_Coupon instance Object
        $coupon = New WC_Coupon( $coupon_code );

        // If the coupon has already been used by the customer, we exit
        if( array_intersect( array($user_id, $email), $coupon->get_used_by() ) {
            return;
        }

        $cart->apply_coupon( $coupon_code );
    }
}

代码位于活动子主题（或活动主题）的 function.php 文件中。经过测试并有效。