通过 WooCommerce 中的挂钩有条件地更改产品税级 [英] Conditionally change products tax class via hooks in WooCommerce

问题描述

大约 18 个月前，我在我的 WooCommerce 商店中实施了一个 b2b 区域.最近我更新了所有插件和 wordpress 本身.切换可变产品的税种不再有效.下面的代码到目前为止工作，但停止工作.我错过了什么?

I have implemented a b2b area into my WooCommerce Shop about 18 months ago. Recently I have updated all plugins and wordpress itself. Switching the tax class on variable products doesn't work anymore. The code below worked so far, but stopped working. What am I missing?

add_filter('woocommerce_product_get_price', 'switch_price', 99, 2);
add_filter('woocommerce_product_variation_get_price', 'switch_price', 99, 2);
function switch_price($price, $product){

    if(isset($_COOKIE["customerType"])){
      if($_COOKIE["customerType"] == "business"){
          $product->set_tax_class("Zero Rate");
      }
    }

    return $price;
}

推荐答案

为了让它工作，你最好通过专用的相关组合来定位 WC_Product 方法 get_tax_class()钩子，这样:

To make it work, you will better target the WC_Product method get_tax_class() through dedicated related composite hooks, this way:

add_filter('woocommerce_product_get_tax_class', 'switch_product_tax_class', 100, 2 );
add_filter('woocommerce_product_variation_get_tax_class', 'switch_product_tax_class', 100, 2 );
function switch_product_tax_class( $tax_class, $product ){
    if( isset($_COOKIE["customerType"]) && $_COOKIE["customerType"] == 'business' ){
        return "Zero Rate";
    }
    return $tax_class;
}

代码位于活动子主题(或活动主题)的 functions.php 文件中.经测试有效.

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

基于 WC_Customer is_vat_exempt 属性，您也可以尝试使用以下代码:

Based on WC_Customer is_vat_exempt property, you could also try to use the following instead:

add_action( 'template_redirect', 'vat_exempt_b2b_customers' );
function vat_exempt_b2b_customers() {
    if( isset($_COOKIE["customerType"]) && $_COOKIE["customerType"] === 'business' 
    && ! WC()->customer->is_vat_exempt() ){
        WC()->customer->set_is_vat_exempt( true );
    }
}

代码位于活动子主题(或活动主题)的 functions.php 文件中.

Code goes in functions.php file of your active child theme (or active theme).

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