Disable shipping method based on chosen payment method in Woocommerce

Question

I need to disable specific shipping method if user selected payment "Cash on Delivery". The problem is that the following code works only if I reset WooCommerce transients each time and refresh. It doesn't work on user selection back and forth.

add_filter( 'woocommerce_package_rates', 'alter_shipping_methods', 100 );
function alter_shipping_methods( $rates ) {

    $chosen_gateway = WC()->session->chosen_payment_method;

    // If payment is Cash on delivery remove specific shipping 
    if($chosen_gateway == 'cod') {

        foreach ( $rates as $rate_id => $rate ) {
           if ( $rate->label === 'Hrvatska pošta' ) {
              unset( $rates[ $rate_id ] );
            }
       }

    }

    return $rates;

}

I do have this code which should trigger and I see the output in console when I click around options.

jQuery(document.body).on('change', 'input[name="payment_method"]', function() {
    console.log('Payment method changed');
    jQuery('body').trigger('update_checkout');
});

I have tried with this, it doesn't work

function action_woocommerce_checkout_update_order_review($array, $int) {
    WC()->cart->calculate_shipping();
    return;
}
add_action('woocommerce_checkout_update_order_review', 'action_woocommerce_checkout_update_order_review', 10, 2);

And I have also tried custom AJAX call which calls a PHP function and inside this filter, no result

add_filter( 'woocommerce_package_rates', 'alter_shipping_methods', 100 );

What should I try next?

Answer 1

Updated on March 2019

Here is the complete working way to make "COD" payment method disable a specific shipping method.

You will have to set in the first function the shipping method Id that you wish to hide.

The code:

add_action( 'woocommerce_package_rates','show_hide_shipping_methods', 10, 2 );
function show_hide_shipping_methods( $rates, $package ) {
    // HERE Define your targeted shipping method ID
    $payment_method        = 'cod';

    $chosen_payment_method = WC()->session->get('chosen_payment_method');

    if( $payment_method == $chosen_payment_method ){
        unset($rates['flat_rate:12']);
    }
    return $rates;
}

add_action( 'woocommerce_review_order_before_payment', 'payment_methods_trigger_update_checkout' );
function payment_methods_trigger_update_checkout(){
    // jQuery code
    ?>
    <script type="text/javascript">
        (function($){
            $( 'form.checkout' ).on( 'blur', 'input[name^="payment_method"]', function() {
                setTimeout(function(){
                    $(document.body).trigger('update_checkout');
                }, 250 );
            });
        })(jQuery);
    </script>
    <?php
}

add_action( 'woocommerce_checkout_update_order_review', 'refresh_shipping_methods' );
function refresh_shipping_methods( $post_data ){
    // HERE Define your targeted shipping method ID
    $payment_method = 'cod';
    $bool           = true;

    if ( WC()->session->get('chosen_payment_method') === $payment_method )
        $bool = false;

    // Mandatory to make it work with shipping methods
    foreach ( WC()->cart->get_shipping_packages() as $package_key => $package ){
        WC()->session->set( 'shipping_for_package_' . $package_key, $bool );
    }
    WC()->cart->calculate_shipping();
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

To be able to get the correct shipping method ID you can use your browser inspector, this way: