Prestashop 功能查询到模板

Question

我在 prestashop 1.6 和 classes/Cart.php 中测试过，我可以与模板文件进行通信。 在我为返回预期结果所做的查询中，在 phpmyadmin 上工作，并且在 cart.php 中工作到 tpl 文件调用，但只有当我写客户的 id 号，并且我想使用变量 id customer 时（具有 THIS 或类似 prestashop 工作方式的东西 - (int)$id_customer - ）。 请大家帮忙！！！！！！

//cart.php 代码

public static function payLater($id_customer)
{
    $sql =  "SELECT ps_customer.pay_later
            FROM ps_customer
            LEFT JOIN ps_cart ON ps_customer.id_customer = ps_cart.id_customer
            ORDER BY ps_cart.id_cart DESC LIMIT 1
            WHERE ps_cart.id_customer =".(int)$id_customer;
    //if i change (int)$id_customer for a real id number like 43 it shows correct info
    $result = Db::getInstance()->getValue($sql);
    return $result;
}

//模板文件代码

{Cart::payLater(Tools::getvalue('pay_later'))}

Answer 1

{Cart::payLater($customer.id)} 在 tpl 文件中。我也编辑了你的功能。请检查下方是否有空的客户 ID。

public static function payLater($id_customer)
{
   if((int)$id_customer == 0){ return; } // check if customer id is blank
    $sql =  "SELECT ps_customer.pay_later
            FROM ps_customer
            LEFT JOIN ps_cart ON ps_customer.id_customer = ps_cart.id_customer
            ORDER BY ps_cart.id_cart DESC LIMIT 1
            WHERE ps_cart.id_customer =".(int)$id_customer;
    //if i change (int)$id_customer for a real id number like 43 it shows correct info
    $result = Db::getInstance()->getValue($sql);
    return $result;
}