WooCommerce:购物车中只有 1 个产品.如果添加一个则替换 [英] WooCommerce: Only 1 product in cart. Replace if one is added

问题描述

我对 WooCommerce 还很陌生，所以我不知道回答我的问题有什么用，这就是我没有添加任何代码块的原因.

I am fairly new to WooCommerce so I dont know what could be of use to answer my question, this is why I have not added any codeblocks.

我想让客户只将一种产品添加到购物车，如果他们添加另一种产品，购物车中的当前产品将被上一个产品替换.

I would like to let customers only add one product to the cart and if they add another product the current product in cart is replaced by the last one.

我需要更改代码还是可以使用插件或 WooCommerce 设置?

Do I need to make changes in the code or is it possible with a plugin or WooCommerce setting?

我期待有帮助的回复.

谢谢

推荐答案

/**
* When an item is added to the cart, remove other products
*/
function custom_maybe_empty_cart( $valid, $product_id, $quantity ) {
  if( ! empty ( WC()->cart->get_cart() ) && $valid ){
           WC()->cart->empty_cart();
  wc_add_notice( 'Only allowed 1 item in cart.', 'error' );
   }
   return $valid;
  }
  add_filter( 'woocommerce_add_to_cart_validation', 'custom_maybe_empty_cart', 10, 3 );

将此代码添加到您的主题 functions.php 文件中.

Add this code your theme functions.php file.

希望有用！！享受

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