ruby-on-rails - Rails Stripe 检索 ID 错误 "No such plan"

Question

所以我的计划显示 Stripe::InvalidRequestError at/orders/26/payments
没有这样的计划:我的计划的标题。
此代码应检查该计划是否已存在，如果不存在，则创建它并向用户订阅它。我认为这有效，因为它适用于我已经有一个具有相同 ID 的计划并且它说“计划已存在”的情况。如何防止此错误发生？
这是我的代码:

class PaymentsController < ApplicationController
  before_action :set_order

  def new
  end

  def create
   @user = current_user

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

# Storing the customer.id in the customer_id field of user
  @user.customer_id = customer.id

   @plan = Stripe::Plan.retrieve(@order.service.title)
    unless @plan
     plan = Stripe::Plan.create(
      :name => @order.service.title,
      :id => @order.service.title,
      :interval => "month",
      :currency => @order.amount.currency,
      :amount => @order.amount_pennies,
      )
    else
     subscription = Stripe::Subscription.create(
       :customer => @user.customer_id,
       :plan => @order.service.title
      )
    end

  @order.update(payment: plan.to_json, state: 'paid')
  redirect_to order_path(@order)

  rescue Stripe::CardError => e
  flash[:error] = e.message
  redirect_to new_order_payment_path(@order)

  end

  private

  def set_order
    @order = Order.where(state: 'pending').find(params[:order_id])
  end

end

Answer 1

documentation表示如果您尝试检索不存在的计划，则会引发错误。所以你只需要捕获错误:

begin
  @plan = Stripe::Plan.retrieve(@order.service.title)
rescue 
  @plan = Stripe::Plan.create(...)
end