如何在codeigniter中将数据（来自数据库）插入购物车

Question

我目前正在制作一个模块，允许客户在他/她已经下订单后更新他/她的订单。 我的问题是我无法检索订购的产品并将它们插入购物车。

public function updateorder(){
    if ($this->session->userdata('email')) {
        $orderid = $this->session->userdata('email');
        $data['order'] = $this->customer_model->order($serial);
        $data['detail'] = $this->customer_model->get_order($serial);
        $detail = $this->customer_model->get_order($serial);
        $this->header();
        foreach($detail as $item){
            echo $item->customerid;
            echo $item->productid;
            echo $item->quantity;
            echo $item->price;
            echo $item->product;
            echo $item->picture;

            $itemarray = array(
                'customerid' => $item['cid'],
                'productid' => $item['pid'],
                'quantity' => $item['qty'],
                'price' => $item['price'],
                'product' => $item['product'],
                'picture' => $item['picture']
            );
        }
    $this->cart->insert($itemarray);
    redirect('customer/Cart');
} else {
    redirect('customer/login');
}