php - WooCommerce - 在 pdf 发票的订单循环中转置购物车循环

Question

我正在使用“ https://woocommerce.com/products/print-invoices-packing-lists/ ”上提供的 woocommerce 和“打印发票和装箱单”。为了在 woocommerce 购物车和结帐页面中显示总节省，我使用了此代码并且运行良好：

 function bbloomer_wc_discount_total() {

    global $woocommerce;

    $cart_subtotal = $woocommerce->cart->cart_contents;

    $discount_total = 0;

  foreach ($woocommerce->cart->cart_contents as $product_data) {

        if ($product_data['variation_id'] > 0) {
            $product = wc_get_product( $product_data['variation_id'] );
        } else {
            $product = wc_get_product( $product_data['product_id'] );
        }

        if ( !empty($product->sale_price) ) {
        $discount = ($product->regular_price - $product->sale_price) * $product_data['quantity'];
        $discount_total += $discount;
        }

    }

    if ( $discount_total > 0 ) {
    echo '<tr class="cart-discount">
    <th>'. __( 'Total Saving :', 'woocommerce' ) .'</th>
    <td data-title=" '. __( 'Total Saving :', 'woocommerce' ) .' ">'
    . wc_price($discount_total+$woocommerce->cart->discount_cart) .'</td>
    </tr>';
    }
}

add_action( 'woocommerce_cart_totals_after_order_total', 'bbloomer_wc_discount_total');
add_action( 'woocommerce_review_order_after_order_total', 'bbloomer_wc_discount_total');

此功能基于 woocommerce 购物车内容。如何在由打印发票和装箱单生成的 HTML 发票中显示总节省 插件中的插件（基于订单而不是购物车内容）钩子如下：

add_action('wc_pip_after_header', 'bbloomer_wc_discount_total'); add_action('wc_pip_document_header', 'bbloomer_wc_discount_total');

Answer 1