Question

我正在使用最新版本的wordpress和Woocommerce。我的功能是＆＃34;覆盖已在购物车中的现有产品数量＆＃34;。我已经试过这个idea，但它失败了。请参阅代码及其错误。

add_action('woocommerce_add_to_cart_handler', 'update_product_in_cart', 11, 2);
function update_product_in_cart($p, $q) {
global $woocommerce;
$cartItem = $woocommerce->cart->cart_contents;
$currentProductId = $q->id;
$wCart = $woocommerce->cart->get_cart();

// If cart already exists, and product exists, than remove product, and add the new product to it.
if ($wCart)
{
    $cart_item_keys = array_keys($wCart);

    foreach($cart_item_keys as $key)
    {
        foreach($cartItem as $item)
        {
            $productItemId = $item['product_id'];
            if ($productItemId == $currentProductId)
            {
                // If you want to empty the entire cart...
                // $woocommerce->cart->empty_cart();
                // If you want to remove just the product from the cart...
                $woocommerce->cart->set_quantity($key, 0);
            }
        }
    }
}
// This adds the product to the cart...
return $q;
}

错误是：

Catchable fatal error: Object of class WC_Product_Grouped could not be converted to string in plugins\woocommerce\includes\class-wc-form-handler.php on line 715

Answer 1

此代码就是答案，以前我在注释框中添加了...。

add_action（'woocommerce_add_to_cart_handler'，'update_product_in_cart'，11，2）;函数update_product_in_cart（$ p，$ q）{全局$ woocommerce; $ cartItem = $ woocommerce->购物车-> cart_contents; $ currentProductId = $ q-> id; $ wCart = $ woocommerce->购物车-> get_cart（）; if（$ wCart）{$ cart_item_keys = array_keys（$ wCart）; foreach（$ cart_item_keys as $ key）{foreach（$ cartItem as $ item）{$ productItemId = $ item ['product_id']; if（$ productItemId == $ currentProductId）{$ woocommerce->购物车-> set_quantity（$ key，0）; }}}}返回$ q; }

如何覆盖购物车中已有的产品数量？

1 个答案: