如何修复此错误“未定义的方法`编码'为nil:NilClassa”并取消订阅计划工作?

时间:2015-04-23 07:01:28

标签: ruby-on-rails stripe-payments

这是我第一次使用Stripe和Rails,现在我正在尝试允许高级用户取消订阅。

我可以使用我的代码将用户从标准级别升级到高级别,但是当我尝试将高级用户降级到标准级别时,我遇到了问题。

我遵循了“取消订阅”的Stripe Ruby API参考:https://stripe.com/docs/api?lang=ruby#cancel_subscription,但是当我点击“取消订阅”按钮时出现此错误:

NoMethodError - 未定义的方法encoding' for nil:NilClass: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/cgi/util.rb:7:in escape'   stripe(1.21.0)lib / stripe / list_object.rb:19:in retrieve' app/controllers/subscriptions_controller.rb:55:in downgrade'

我的rails版本是4.2.1。

我的代码:

class SubscriptionsController < ApplicationController

def create
    subscription = Subscription.new
      stripe_sub = nil
    if current_user.stripe_customer_id.blank?
      # Creates a Stripe Customer object, for associating with the charge
      customer = Stripe::Customer.create(
        email: current_user.email,
        card: params[:stripeToken],
        plan: 'premium_plan'
        )
      current_user.stripe_customer_id = customer.id
      current_user.save!
      stripe_sub = customer.subscriptions.first
    else
      customer = Stripe::Customer.retrieve(current_user.stripe_customer_id)
      stripe_sub = customer.subscriptions.create(
        plan: 'premium_plan'
        )
    end

    current_user.subid = stripe_sub.id

    current_user.subscription.save!

    update_user_to_premium
    flash[:success] = "Thank you for your subscription!"

    redirect_to root_path 

    # Handle exceptions
    rescue Stripe::CardError => e
     flash[:error] = e.message
     redirect_to new_subscriptions_path
  end


  def downgrade

    customer = Stripe::Customer.retrieve(current_user.stripe_customer_id)
    customer.subscriptions.retrieve(current_user.subid).delete

    downgrade_user_to_standard
    flash[:success] = "Sorry to see you go."
    redirect_to user_path(current_user)

  end
end

ApplitionController:

class ApplicationController < ActionController::Base
def update_user_to_premium
    current_user.update_attributes(role: "premium")
   end

   def downgrade_user_to_standard
    current_user.update_attributes(role: "standard")
   end
end

配置/初始化/ stripe.rb:

Rails.configuration.stripe = {
   publishable_key: ENV['STRIPE_PUBLISHABLE_KEY'],
   secret_key: ENV['STRIPE_SECRET_KEY']
 }

 # Set our app-stored secret key with Stripe
 Stripe.api_key = Rails.configuration.stripe[:secret_key]

任何帮助将不胜感激!

更新 感谢stacksonstacks的帮助,我需要的是在'current_user.subid = stripe_sub.id'下声明'subscription.user = current_user',然后在降级方法中使用“subscription = current_user.subscription”调用订阅ID。现在订阅取消有效!

1 个答案:

答案 0 :(得分:2)

似乎current_user.subid在此行返回nil

customer.subscriptions.retrieve(current_user.subid).delete

您为subid分配了current_user,但您从未保存更改。 您只保存新创建的subscription

current_user.subid = stripe_sub.id
current_user.subscription.save!

如果添加current_user.save!,我认为这样可以解决问题。

希望有所帮助