用户离开Woocommerce中的某个页面后，便会清空购物车 [英] Empty cart once a user leaves a certain page in Woocommerce

问题描述

因此，我们正在构建一个具有自定义页面的网站，该页面调用WooCommerce购物车中的商品。但是，一旦用户离开该页面，我们想做的就是清空购物车。这可能吗？

So we're building a site that has a custom page that's calling the items in a WooCommerce cart. But what we wanted to do is empty that cart once a user leaves that page. Is this possible?

我们发现了这段代码可能会对我们有所帮助，但是当我们进入管理页面时，我们一直遇到致命错误，而这似乎只有在进入管理页面时才会发生部分：

We found this code that will maybe help us but we kept getting a fatal error when we go to the admin page and this only seems to happen when we go to the admin section:

致命错误：在null上调用成员函数 empty_cart（）在第746行的 /home/client/public_html/wp-content/themes/wp-theme/functions.php 中

这是我们的代码：

add_action( 'init', 'woocommerce_clear_cart_url' );

function woocommerce_clear_cart_url() {
  global $woocommerce;

  if ($_SERVER['REQUEST_URI'] !== 'https://www.oursite.com/fake-cart-page/') {
      $woocommerce->cart->empty_cart();
   }
}

谢谢！

推荐答案

我们知道了！所以这就是我们要做的：

We figured it out! So this is what we did:

//we inserted a script in wordpress and put it in the head

add_action( 'wp_head', 'woocommerce_clear_cart_url' );

function woocommerce_clear_cart_url() {

   global $woocommerce;

   //we used the jquery beforeunload function to detect if the user leaves that page
   ?>

 <script>

 jQuery(document).ready(function($) {

 $(window).bind('beforeunload', function() {
    //Used WordPress to help jQuery determine the page we're targeting 
    //pageID is the page number of the page we're targeting
     <?php if(!is_page(pageID)):
          //empty the cart
          $woocommerce->cart->empty_cart(); ?>

     <?php endif; ?>
 });

});

 </script>

 <?php } ?>

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