Heroku中的Rails 4.1 UnknownAttributeError（未知属性：uuid）答案

【问题标题】：Rails 4.1 UnknownAttributeError (unknown attribute: uuid) in herokuHeroku中的Rails 4.1 UnknownAttributeError（未知属性：uuid）
【发布时间】：2015-03-28 00:39:31
【问题描述】：

构建一个使用条纹支付的应用程序，这适用于开发。我可以输入测试信用卡详细信息，并通过电子邮件确认。

但是当我使用 Heroku 在生产环境中运行此程序时，我收到错误消息，我们很抱歉，但出了点问题。 heroku 日志显示以下内容

 Started POST "/charges" for 80.2.226.13 at 2015-03-27 16:05:31 +0000
2015-03-27T16:05:31.871211+00:00 app[web.1]:   Parameters: {"utf8"=>"✓", "authenticity_token"=>"2jvX1N56k0a3meU3jV2SdeVq9y7rRFjg03w8aSBRYC8=", "stripeToken"=>"tok_15kzxd4Czb5bpuHdZzkzroA5", "stripeEmail"=>"neil@spark48.com", "amount"=>"499"}
2015-03-27T16:05:31.871173+00:00 app[web.1]: Processing by ChargesController#create as HTML
2015-03-27T16:05:33.406666+00:00 app[web.1]: Completed 500 Internal Server Error in 1535ms
2015-03-27T16:05:33.407849+00:00 app[web.1]:   app/controllers/charges_controller.rb:19:in `create'
2015-03-27T16:05:33.407851+00:00 app[web.1]: 
2015-03-27T16:05:33.407847+00:00 app[web.1]: **ActiveRecord::UnknownAttributeError (unknown attribute: uuid):**
2015-03-27T16:05:33.407850+00:00 app[web.1]: 
2015-03-27T16:05:33.407844+00:00 app[web.1]: 
2015-03-27T16:05:33.416304+00:00 heroku[router]: at=info method=POST path="/charges" host=railsapp2015.herokuapp.com request_id=f514ee9e-a111-4547-b89d-29eab4931c0a fwd="80.2.226.13" dyno=web.1 connect=2ms service=1544ms status=500 bytes=1754

得到这个错误？？ ActiveRecord::UnknownAttributeError（未知属性：uuid）：我在费用 controller.rb 文件中使用的

类 ChargesController

def create
  # Amount in cents

  customer = Stripe::Customer.create(
    :email => params[:stripeEmail],
    :card  => params[:stripeToken]
  )
  charge = Stripe::Charge.create(
    :customer    => customer.id,
    :amount      => params[:amount],
    :description => 'Open Cinema',
    :currency    => 'gbp'
  )
  purchase = Purchase.create(email: params[:stripeEmail],
    card: params[:stripeToken], amount: params[:amount],
    description: charge.description, currency: charge.currency,
    customer_id: customer.id, product_id: 1, uuid: SecureRandom.uuid)

  redirect_to purchase


rescue Stripe::CardError => e
  flash[:error] = e.message
  redirect_to charges_path
end
end

已经完成 heroku 重启并将 uuid 添加到我的购买模型中

class AddUuidToPurchases < ActiveRecord::Migration
  def change
    add_column :purchases, :uuid, :string
  end
end



class ChargesController < ApplicationController

def create
  # Amount in cents
require 'SecureRandom'

  customer = Stripe::Customer.create(
    :email => params[:stripeEmail],
    :card  => params[:stripeToken]
  )

  charge = Stripe::Charge.create(
    :customer    => customer.id,
    :amount      => params[:amount],
    :description => 'Open Cinema',
    :currency    => 'gbp'
  )

  purchase = Purchase.create(email: params[:stripeEmail],
    card: params[:stripeToken], amount: params[:amount],
    description: charge.description, currency: charge.currency,
    customer_id: customer.id, product_id: 1, uuid: SecureRandom.uuid)

  redirect_to purchase


rescue Stripe::CardError => e
  flash[:error] = e.message
  redirect_to charges_path
end
end

【问题讨论】：

标签： ruby-on-rails ruby heroku

【解决方案1】：

在您的模型中包含 require 'securerandom' 并再次部署。

【讨论】：

更改为 customer_id: customer.id, product_id: 1, uuid: SecureRandom.first.uuid) & 得到错误 undefined method `first' for SecureRandom:Module
您是否在 heroku 中运行了迁移？