除了paypal之外. 客户通过其他的支付方式进入index.php?main_page=checkout_confirmation这个页面就能生出订单.
但是!! paypal就有点与众不同, 它只能是从它的官网 [paypal.com] 返回来并且进入checkout_process这个页面后,才能生出订单
而意外常会发生:比如网络不顺. 又比如客户不小心在返回前就关了页面.
那么,我们的网站后台就看不到客户买的是什么产品(虽然在paypal后台能看到是谁买了,但确实是无法知道他到底买了什么,)这可是一个好郁闷的事情
paypal防漏单的原理就是------在 checkout_confirmation.php这个页面先生出订单!!!
方法是：在这个文件的最后部分echo TITLE_CONTINUE_CHECKOUT_PROCEDURE . '<br />' . TEXT_CONTINUE_CHECKOUT_PROCEDURE;
后面添加代码：
// create the order record 防漏单
if ($_SESSION['payment'] == 'paypal') {
$insert_id = $order->create($order_totals, 2);
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_ORDER_CREATE');
$payment_modules->after_order_create($insert_id);
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_PAYMENT_MODULES_AFTER_ORDER_CREATE');
// store the product info to the order
$order->create_add_products($insert_id);
$_SESSION['order_number_created'] = $insert_id;
其中GS/AK的为防漏单的订单，只有在出现漏单的时候才会查看这些订单，里面的信息跟正常订单相比会少一个交易号，但是至少是可以看到客户信息及所购买了什么产品...
如果需要更完美的做法, 为防止顾客在访问checkout process的时候会重复生成订单, 那么就需要加个判断
if($_SESSION['payment']!='paypal'){
/*// create the order record
$insert_id = $order->create($order_totals, 2);
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_ORDER_CREATE');
$payment_modules->after_order_create($insert_id);
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_PAYMENT_MODULES_AFTER_ORDER_CREATE');
// store the product info to the order
$order->create_add_products($insert_id);
$_SESSION['order_number_created'] = $insert_id;
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_ORDER_CREATE_ADD_PRODUCTS');
//send email notifications
$order->send_order_email($insert_id, 2);
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_SEND_ORDER_EMAIL');*/
}
而且在确认页面，如果顾客一直刷新页面，就会一直生成订单，可以加个限制.
// create the order record 防漏单
if ($_SESSION['payment'] == 'paypal' and !isset($_SESSION['order_number_created'])) {
$insert_id = $order->create($order_totals, 2);
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_ORDER_CREATE');
$payment_modules->after_order_create($insert_id);
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_PAYMENT_MODULES_AFTER_ORDER_CREATE');
// store the product info to the order
$order->create_add_products($insert_id);
$_SESSION['order_number_created'] = $insert_id;
}
在pages/checkout_payment/header_php.php任意位置加上unset($_SESSION['order_number_created']);
这样,就算顾客在确认页面一直刷新，因为已经设置了
$_SESSION['order_number_created']，订单不再生成，
如果顾客返回修改了购物车，再次到达checkout_payment时
$_SESSION['order_number_created']将被清除，
其实，生成订单的代码可以写在
modules/payment/paypal.php的 function confirmation()中。
代码如下：
function confirmation() {
if(!isset($_SESSION['order_number_created']))
{
global $order,$order_total_modules,$order_totals,$zco_notifier,$insert_id;
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_BEGIN'); // if the customer is not logged on, redirect them to the time out page
if (!$_SESSION['customer_id'])
{
zen_redirect(zen_href_link(FILENAME_TIME_OUT));
}
else
{ // validate customer
if (zen_get_customer_validate_session($_SESSION['customer_id']) == false)
{
$_SESSION['navigation']->set_snapshot(array('mode' => 'SSL', 'page' => FILENAME_CHECKOUT_SHIPPING));
zen_redirect(zen_href_link(FILENAME_LOGIN, '', 'SSL'));
}
}
if(isset($mycartID)&&$mycartID == $_SESSION['cart']->cartID)
{
return array('title' => MODULE_PAYMENT_PAYPAL_TEXT_DESCRIPTION);
}
$mycartID = $_SESSION['cart']->cartID;
$order = new order; // prevent 0-entry orders from being generated/spoofed
if (sizeof($order->products) < 1)
{
zen_redirect(zen_href_link(FILENAME_SHOPPING_CART));
}
$order_total_modules = new order_total;
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_BEFORE_ORDER_TOTALS_PRE_CONFIRMATION_CHECK');
//$order_totals = $order_total_modules->pre_confirmation_check();
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_BEFORE_ORDER_TOTALS_PROCESS');
$order_totals = $order_total_modules->process();
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_ORDER_TOTALS_PROCESS');
if (!isset($_SESSION['payment']) && !$credit_covers)
{
zen_redirect(zen_href_link(FILENAME_DEFAULT));
} // load the before_process
// load the before_process function from the payment modules
//$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_PAYMENT_MODULES_BEFOREPROCESS');
// create the order record
$insert_id = $order->create($order_totals, 2);
require(DIR_WS_LANGUAGES.'english/email_extras.php');
require(DIR_WS_LANGUAGES.'english/checkout_process.php');
// store the product info to the order
$order->create_add_products($insert_id);
$_SESSION['order_number_created'] = $insert_id;
$zco_notifier->notify('NOTIFY_CHECKOUT_PROCESS_AFTER_ORDER_CREATE_ADD_PRODUCTS');
$order->send_order_email($insert_id, 2);
if (is_array($order_total_modules->modules))
{
reset($order_total_modules->modules);
while (list(, $value) = each($order_total_modules->modules))
{
$class = substr($value, 0, strrpos($value, '.'));
if (!isset($GLOBALS[$class])) continue;
$GLOBALS[$class]->output=null;
}
}
}
else
return false;
}
这样后台看到的订单 的Payment Shipping 就还是paypal 送货方式.
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