Refresh cached shipping methods on checkout update ajax event in Woocommerce

Question

i just implemented a custom shipping solution.

It depends on the total price of items in the cart. For example:

if total is < 20   -> display free shipping
if total is >= 20  -> paid delivery

But i have a problem with woocommerce cache...I think that the fact is that woocommerce caches shipping rates, not taking in account order qty change. So is the problem is with the calculate_shipping_for_package() method?

If I enable shipping debug mode everything works just right, without it got no updates.

I tried to disable cache, without success with.

add_action('woocommerce_checkout_update_order_review', function() {
    $packages = WC()->cart->get_shipping_packages();
    foreach ($packages as $key => $value) {
        $shipping_session = "shipping_for_package_$key";
        unset(WC()->session->$shipping_session);
    }
}, 10, 2);

So. Do you ever had this kind of problem? How did you solve? Thanks a lot for any help!

Parity

Difficult to answer to this question with the few provided code. We don't know how your shipping method customizations are done and what it's involved in it. So you should need to provide all related code as with the provided code, it's not testable. – Vikki

Answer 1

Updated: There is some mistakes in your code, instead try the following:

add_action('woocommerce_checkout_update_order_review', 'checkout_update_refresh_shipping_methods', 10, 1);
function checkout_update_refresh_shipping_methods( $post_data ) {
    $packages = WC()->cart->get_shipping_packages();
    foreach ($packages as $package_key => $package ) {
         WC()->session->set( 'shipping_for_package_' . $package_key, false ); // Or true
    }
}

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

But it will refresh shipping methods cache each time on ajax checkout update event.

Related: Custom checkout field and shipping methods ajax interaction in Woocommerce 3

Vikki

Thanks, will test immediatelly! – Parity

I think both will work, it checks if it's array. class-wc-shipping.php:324 – Parity

Yeah working on it. Seem like the problem is with items quatity not updating rather than cache... .-. I'm using WC()->cart->get_cart() inside calculate_shipping – Parity

@Parity add your functions code in your question please, as actually nobody can helps more than that. – Vikki

Sure, i will do it ASAP. Probably 2-3hours from now. – Parity

@Parity So what was it? I am curious… – Vikki