查看日志我得到了这个：
Processing CheckoutsController#update (for 69.230.191.209 at 2011-04-26 15:08:53) [PUT]
Parameters: {"step"=>"payment", "order_id"=>"R107122666", "action"=>"update", "_method"=>"put", "authenticity_token"=>"ovZo+SsiHiGsmgtwkdzr0tRtfylQwGOUCeV9zEJU=", "controller"=>"checkouts", "checkout"=>{"creditcard_attributes"=>{"number"=>"[FILTERED]", "month"=>"8", "id"=>"63", "year"=>"2013", "last_name"=>"", "verification_value"=>"[FILTERED]", "first_name"=>""}}}
Gateway Error ... An error occurred during processing. Please try again.
Rendering template within layouts/spree_application
Rendering checkouts/edit
Completed in 4804ms (View: 76, DB: 38) | 200 OK [https://truejey.com/orders/R10712666/checkout]
好的..一个非常普遍的错误。但它来自 Authorize.net，它告诉我它可以是以下任何一种：
The system-generated void for the original timed-out transaction failed. (The original transaction timed out while waiting for a response from the authorizer.)
The system-generated void for the original errored transaction failed. (The original transaction experienced a database error.)
The system-generated void for the original errored transaction failed. (The original transaction experienced a processing error.)
不同之处在于response_code我返回的是120,121还是122.
我的问题是，我怎样才能找出这个交易的 response_code 是什么？
或者更好的是，有没有其他人有像这样调试 CC 问题的大师方法？