| @@ -37,56 +37,4 @@ | ||
| 37 | 37 | } |
| 38 | 38 | |
| 39 | 39 | add_filter( 'woocommerce_package_rates', 'disco_add_free_shipping_rate', 100, 1 ); |
| 40 | 40 | } |
| 41 | - | |
| 42 | -if ( ! function_exists( 'disco_refresh_shipping_cache_on_cart_checkout' ) ) { | |
| 43 | - | |
| 44 | - /** | |
| 45 | - * Force WooCommerce to recalculate shipping rates on the cart and checkout pages. | |
| 46 | - * | |
| 47 | - * Disco adds/removes the disco_free_shipping rate through the | |
| 48 | - * woocommerce_package_rates filter based on the current campaign state, but | |
| 49 | - * WooCommerce caches the calculated package rates in the customer session | |
| 50 | - * keyed by a hash of the cart contents only - campaign state is NOT part of | |
| 51 | - * that hash. So when a campaign is activated or deactivated, an existing | |
| 52 | - * session keeps serving the stale cached rates: a lingering disco_free_shipping | |
| 53 | - * rate after deactivation, or a chosen shipping method that no longer exists, | |
| 54 | - * which makes the shipping options appear hidden or broken until the cart | |
| 55 | - * contents change. | |
| 56 | - * | |
| 57 | - * Clearing this session's cached package rates whenever the cart or checkout | |
| 58 | - * page is viewed forces a fresh calculation that reflects the current campaign | |
| 59 | - * state, for this customer only (no global cache flush). | |
| 60 | - * | |
| 61 | - * @return void | |
| 62 | - */ | |
| 63 | - function disco_refresh_shipping_cache_on_cart_checkout() { | |
| 64 | - if ( is_admin() || ! function_exists( 'is_cart' ) || ! function_exists( 'WC' ) ) { | |
| 65 | - return; | |
| 66 | - } | |
| 67 | - | |
| 68 | - if ( ! is_cart() && ! is_checkout() ) { | |
| 69 | - return; | |
| 70 | - } | |
| 71 | - | |
| 72 | - $session = WC()->session; | |
| 73 | - $cart = WC()->cart; | |
| 74 | - | |
| 75 | - if ( ! $session instanceof WC_Session || ! $cart instanceof WC_Cart ) { | |
| 76 | - return; | |
| 77 | - } | |
| 78 | - | |
| 79 | - // Invalidate the cached rates for every shipping package in this session. | |
| 80 | - // The package keys match the keys WooCommerce uses when it stores rates | |
| 81 | - // under 'shipping_for_package_{key}', so setting them to false makes | |
| 82 | - // WC_Shipping::calculate_shipping_for_package() recalculate instead of | |
| 83 | - // returning the stale cached rates. | |
| 84 | - foreach ( array_keys( $cart->get_shipping_packages() ) as $package_key ) { | |
| 85 | - $session->set( 'shipping_for_package_' . $package_key, false ); | |
| 86 | - } | |
| 87 | - | |
| 88 | - $cart->calculate_shipping(); | |
| 89 | - } | |
| 90 | - | |
| 91 | - add_action( 'template_redirect', 'disco_refresh_shipping_cache_on_cart_checkout' ); | |
| 92 | -} | |
