ruby-on-rails – 更新Stripe的客户信用卡信息

到目前为止,用户可以创建&使用Stripe删除其订阅.但我无法调用API中的哈希值以让用户更改其信用卡信息.

问题：如何调用/传递文档中的子参数以使用我创建的update_card方法更新信用卡字段？

这是我的评论代码：

CONTROLLER

class SubscriptionsController < ApplicationController

  def update
    @subscription = current_user.subscription

    ### I use the method update_card to update the customer's card
    @subscription.update_card  

     if @subscription.update_card
      redirect_to edit_subscription_path,:success => 'Updated Card.' 
    else
      flash.alert = 'Unable to update card.'
      render :edit 
    end
  end

end

楷模

class Subscription < ActiveRecord::Base
  attr_accessible :plan_id,:user_id,:email,:stripe_customer_token,:last_4_digits,:card_token,:card_name,:exp_month,:exp_year,:stripe_card_token

  attr_accessor :stripe_card_token

  belongs_to :plan
  belongs_to :user

  ### How can this work with my edit form. Would I need to store each person's new card?
  def token
    token = Stripe::Token.create(
       :card => {
       :number => "4242424242424242",:exp_month => 1,:exp_year => 2015,:cvc => "314"
      },)
  end

  def update_card
    customer = Stripe::Customer.retrieve(stripe_customer_token)
    customer.email = "myteam@gmail.com"
    customer.description = "Unlimited"
    customer.card = token.id
    customer.save
  rescue Stripe::StripeError => e 
    logger.error "Stripe Error: " + e.message 
    errors.add :base,"#{e.message}." 
    false
  end

这是Stripe的文档示例响应

#<Stripe::Customer id=cus_3OWtLd5pirU4te 0x00000a> JSON: {
  "object": "customer","created": 1390946171,"id": "cus_3OWtLd5pirU4te","livemode": false,"description": "Customer for test@example.com","email": null,"delinquent": false,"metadata": {
  },"subscription": null,"discount": null,"account_balance": 0,"currency": "usd",###I need to be able to update the data inside the customers card
  "cards": {
    "object": "list","count": 1,"url": "/v1/customers/cus_3OWtLd5pirU4te/cards","data": [
      {
        "id": "card_103OWt2eZvKYlo2CgyXLaqcd","object": "card","last4": "4242","type": "Visa","exp_month": 9,"exp_year": 2015,"fingerprint": "Xt5EWLLDS7FJjR1c","customer": "cus_3OWtLd5pirU4te","country": "US","name": "Brendan Lynch","address_line1": null,"address_line2": null,"address_city": null,"address_state": null,"address_zip": null,"address_country": null,"cvc_check": "pass","address_line1_check": null,"address_zip_check": null
      }
    ]
  },"default_card": "card_103OWt2eZvKYlo2CgyXLaqcd"
}

参考：Stripe Documentation for Ruby

js.coffee

jQuery ->
  Stripe.setPublishableKey($('meta[name="stripe-key"]').attr('content'))
  subscription.setupForm()

subscription =
  setupForm: ->
    $('#new_subscription').submit ->
      $('input[type=submit]').attr('disabled',true)
      if $('#card_number').length
        subscription.processCard()
        false
      else
        true

  processCard: ->
    card =
      {number: $('#card_number').val(),cvc: $('#card_code').val(),expMonth: $('#card_month').val(),expYear: $('#card_year').val()}

    Stripe.createToken(card,subscription.handleStripeResponse)

  handleStripeResponse: (status,response) ->
    if status == 200
      $('#subscription_stripe_card_token').val(response.id)
      $('#new_subscription')[0].submit()
    else
      $('#stripe_error').text(response.error.message)
      $('input[type=submit]').attr('disabled',false)

日志

Started PUT "/subscriptions/5" for 127.0.0.1 at 2014-01-30 01:53:35 -0800
Processing by SubscriptionsController#update as HTML

  Parameters: {"utf8"=>"?","authenticity_token"=>"ehyUD17CbH7MMOe98s+Kqkh+wGghntWkG4OpoqbnQaA=","subscription"=>{"plan_id"=>"1","user_id"=>"1","stripe_card_token"=>""},"commit"=>"Update My Credit Card","id"=>"5"}

User Load (1.0ms)  SELECT "users".* FROM "users" 
WHERE "users"."remember_token" = 'xEeu1X6IK9gUAsna9b6Mow' 
LIMIT 1
Subscription Load (0.5ms)  SELECT "subscriptions".* 
FROM "subscriptions" WHERE "subscriptions"."user_id" = 1 LIMIT 1

Stripe Error: You passed an empty string for 'card'. We assume empty values
are an attempt to unset a parameter; however 'card' cannot be unset. You 
should remove 'card' from your request or supply a non-empty value