我已经创建了一个优惠券代码“Tiendas”双X2航运价格和禁用免费默认商店航运（订单〉50€）.
此外，优惠券可以免费送货，但增加订单价值〉250€.
我有3种运输方式对我的商店：

• flat_rate:1
• flat_rate:7
• Free_shipping

当优惠券启用，flat_rate:7和免费送货必须隐藏。和flat_rate:1应该是可见的，其运费x2（4.80 € x 2= 9.60 €）
只有当我输入flat_rate，而不是flat_rate:1，但隐藏所有运输方式，而不是一个工作。
基于 ”https://stackoverflow.com/questions/52912181/applied-coupons-disable-free-shipping-conditionally-in-woocommerce/52913005#52913005“ 答案线程，下面是我的代码尝试：

add_filter( 'woocommerce_package_rates', 'coupons_removes_free_shipping', 10, 2 );
function coupons_removes_free_shipping( $rates, $package ){
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return $rates;

    $min_subtotal      = 250; // Minimal subtotal allowing free shipping

    // Get needed cart subtotals
    $subtotal_excl_tax = WC()->cart->get_subtotal();
    $subtotal_incl_tax = $subtotal_excl_tax + WC()->cart->get_subtotal_tax();
    $discount_excl_tax = WC()->cart->get_discount_total();
    $discount_incl_tax = $discount_total + WC()->cart->get_discount_tax();

    // Calculating the discounted subtotal including taxes
    $discounted_subtotal_incl_taxes = $subtotal_incl_tax - $discount_incl_tax;

    $applied_coupons   = WC()->cart->get_applied_coupons();
    if( in_array( 'tiendas',$applied_coupons ) && sizeof($applied_coupons) > 0 && $discounted_subtotal_incl_taxes < $min_subtotal ){
        foreach ( $rates as $rate_key => $rate ){

            // Set 2x cost"
            if( $rate->method_id === 'flat_rate:1' ){
                // Set 2x of the cost
                $rates[$rate_key]->cost = $rates[$rate_key]->cost * 2;}
 
            // Disable "flat_rate:7"
            if( $rate->method_id === 'flat_rate:7'  ){
                unset($rates[$rate_key]);

 
            // Disable "Free shipping"
            if( 'free_shipping' === $rate->method_id  ){
                unset($rates[$rate_key]);
 
                
            }
        }
    }
    }
    return $rates;
    }