客人结账后Prestashop 1.6.1.1空车

Question

我启用了客人结账但结账后我弹出一条消息，说明我的购物车是空的！ :-(产品允许客户购买，我已经检查过了。我无法在prestach的代码中找到负责清空我的购物车的地方。我用JQuery和AJAX来解决这个问题，因为消息没有页面重新加载如何使用firebug或其他调试工具检查购物车对象的实际情况？

我创建了记录器功能，我试图找出购物车何时变空但突然发生。

SharedPreferences

当我将第一个产品添加到购物车时，我会得到以下输出：

controllers\front\OrderOpcController.php

    class OrderOpcControllerCore extends ParentOrderController
{
[...]
public function init()
        {
            parent::init();
    [...]

    LoggerClass::MyLogger($this->context->cart, __LINE__);

[...]

但是在积极的客人结账后，我收到消息说我的购物车是空的，输出也是空车

Cart Object
(
    [id] => 1872
    [id_shop_group] => 1
    [id_shop] => 1
    [id_address_delivery] => 0
    [id_address_invoice] => 0
    [id_currency] => 1
    [id_customer] => 0
    [id_guest] => 5446
    [id_lang] => 7
    [recyclable] => 0
    [gift] => 0
    [gift_message] => 
    [mobile_theme] => 0
    [date_add] => 2016-02-06 00:18:59
    [secure_key] => 
    [id_carrier] => 0
    [date_upd] => 2016-02-06 00:19:00
    [checkedTos] => 
    [pictures] => 
    [textFields] => 
    [delivery_option] => 
    [allow_seperated_package] => 0
    [_products:protected] => Array
        (
            [0] => Array
                (
                    [id_product_attribute] => 31
                    [id_product] => 22
                    [cart_quantity] => 1
                    [id_shop] => 1

[...]

Cart Object ( [id] => [id_shop_group] => 1 [id_shop] => 1 [id_address_delivery] => 0 [id_address_invoice] => 0 [id_currency] => 1 [id_customer] => [id_guest] => 0 [id_lang] => 7 [recyclable] => 0 [gift] => 0 [gift_message] => [mobile_theme] => [date_add] => [secure_key] => [id_carrier] => 0 [date_upd] => [checkedTos] => [pictures] => [textFields] => [delivery_option] => [allow_seperated_package] => [_products:protected] => 按钮不会消失，但会显示消息SAVE。