在WooCommerce中计算现有订单中的送货方式/费率

Question

我实质上是在尝试复制购物车页面上的功能，用户可以在其中添加他们的商品zip code，并计算可用的运费，但是我试图从后端在已经创建的订单中进行操作。

我找不到直接从WC_Order实例执行此操作的方法，因此，我的下一个优点是清除购物车会话，将订单中的所有项目添加到购物车会话，然后尝试进行计算。

到目前为止，这就是我所拥有的。我一直坚持如何计算整个订单的价格。

$order_id       = isset($_POST['order_id'])?$_POST['order_id']:0;
$country        = isset($_POST['country'])?$_POST['country']:0;
$state          = isset($_POST['state'])?$_POST['state']:0;
$postcode       = isset($_POST['postcode'])?$_POST['postcode']:0;
$city           = isset($_POST['city'])?$_POST['country']:0;
$order          = wc_get_order( $order_id );
$order_items    = $order->get_items();

// Don't know if this would save country of logged in user, or only create a temporary guest user session which is what I'd need
if ( $country != '' ) {
    WC()->customer->set_billing_location( $country, $state, $postcode, $city );
    WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
} else {
    WC()->customer->set_billing_address_to_base();
    WC()->customer->set_shipping_address_to_base();
}

// Remove all current items from cart
if ( sizeof( WC()->cart->get_cart() ) > 0 ) {
    WC()->cart->empty_cart();
}

// Add all items from the order to the cart
foreach ($order_items as $order_item) {
    WC()->cart->add_to_cart($order_item['product_id'], $order_item['qty']);
}

$totals = WC()->shipping->get_packages();

// $totals returns rates but I believe it is per each "package". It's not a cumulative rate like the cart page shows.

Answer 1

好的，感谢@mujuonly，我能够弄清楚。

以下是获取所有计算运费的方法，与购物车页面上的显示方式相同。

// Post variables
$order_id   = isset($_POST['order_id'])?$_POST['order_id']:0;
$country    = isset($_POST['country'])?$_POST['country']:0;
$state      = isset($_POST['state'])?$_POST['state']:0;
$postcode   = isset($_POST['postcode'])?$_POST['postcode']:0;
$city       = isset($_POST['city'])?$_POST['city']:0;

// Order and order items
$order          = wc_get_order( $order_id );
$order_items    = $order->get_items();

// Reset shipping first
WC()->shipping()->reset_shipping();

// Set correct temporary location
if ( $country != '' ) {
    WC()->customer->set_billing_location( $country, $state, $postcode, $city );
    WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
} else {
    WC()->customer->set_billing_address_to_base();
    WC()->customer->set_shipping_address_to_base();
}

// Remove all current items from cart
if ( sizeof( WC()->cart->get_cart() ) > 0 ) {
    WC()->cart->empty_cart();
}

// Add all items to cart
foreach ($order_items as $order_item) {
    WC()->cart->add_to_cart($order_item['product_id'], $order_item['qty']);
}

// Calculate shipping
$packages = WC()->cart->get_shipping_packages();
$shipping = WC()->shipping->calculate_shipping($packages);
$available_methods = WC()->shipping->get_packages();

$available_methods[0]['rates'] 将包含订单内产品在该位置可用的所有运费。