Ruby on rails 4 使用Stripe在支付操作之前登录用户

我试图强迫用户在使用Stripe支付操作之前登录。当我将pay添加到before_操作过滤器时，用户仍然会被提示输入其信用卡详细信息，并且只有在提交表单时才会被要求登录。当他们实际单击“付款”按钮时，如何在付款单出现之前强制登录？谢谢你的帮助

class ItemsController < ApplicationController

    before_action :logged_in_user, only: [:edit, :update, :new, :destroy, :pay]

def pay 
    item = Item.find( params[:id] )
    amount = (item.price * 100).round  
    name = item.name 
    fee = 100
    email = current_user.email 

    begin
      charge = Stripe::Charge.create(
        {
          amount: amount,
          currency: item.user.currency,
          card: params[:token],
          description: name,
          application_fee: fee,
          receipt_email: email, 
         },

      item.user.secret_key
      )

      flash[:success] = "Charged successfully! You will receive an email receipt from Stripe shortly.  In the meantime feel free to browse other items.  Thank you for shopping with a Sewingly seller."

    rescue Stripe::CardError => e
      error = e.json_body[:error][:message]
      flash[:error] = "Charge failed! #{error}"
    end

    if charge["paid"] == true
      ItemMailer.item_sold(item).deliver_now
      item.update(sold: "true")
      redirect_to item.user
    end 
  end
end 

雇员再培训局：

现在付款
window.stripePublishableKey=''；
window.currentUserEmail=''；
window.payPath=''；
window.total=''；
window.avatar=''；
window.item=''
window.stripePublishableKey=''；
window.payPath=''；
window.total=''；
window.avatar=''；
window.item=''

在他们输入信用卡详细信息的视图中使用的控制器/操作是什么？显然，

pay

方法假定已经输入了信用卡详细信息。

$(document).ready ->
  return unless StripeCheckout?

  # Keeps track of whether we're in the middle of processing
  # a payment or not. This way we can tell if the 'closed'
  # event was due to a successful token generation, or the user
  # closing it by hand.
  submitting = false

  payButton = $('.pay-button')
  form = payButton.closest('form')
  indicator = form.find('.indicator').height( form.outerHeight() )

  handler = StripeCheckout.configure
    # The publishable key of the **connected account**.
    key: window.stripePublishableKey
    #key: 'pk_test_MEryapIaDEU6ckqhwuvb7NzU'

    # The email of the logged in user.
    email: window.currentUserEmail

    allowRememberMe: false
    closed: ->
      form.removeClass('processing') unless submitting
    token: ( token ) ->
      submitting = true
      form.find('input[name=token]').val( token.id )
      form.get(0).submit()

  payButton.click ( e ) ->
    e.preventDefault()
    form.addClass( 'processing' )

    handler.open
     name: window.item
     description: window.description
     amount: window.total 
     address: 'true'
     image: window.avatar

<%= form_tag pay_item_path do %>
        <%= hidden_field_tag :token %>
         <button class="btn btn-primary pay-button">Pay now</button>
      <% end %>

        <%= javascript_include_tag 'https://checkout.stripe.com/checkout.js' %>
          <% if logged_in? %>
            <script>
              window.stripePublishableKey = '<%= @item.user.publishable_key %>';
              window.currentUserEmail = '<%= current_user.email %>';
              window.payPath = '<%= pay_item_path( @item.user ) %>';
              window.total =  '<%= item_total %>';
              window.avatar = '<%= @item.user.avatar_url %>';
              window.item = '<%= @item.name %>'
            </script>
          <% else %>
            <script>
              window.stripePublishableKey = '<%= @item.user.publishable_key %>';
              window.payPath = '<%= pay_item_path( @item.user ) %>';
              window.total =  '<%= item_total %>';
              window.avatar = '<%= @item.user.avatar_url %>';
              window.item = '<%= @item.name %>'
            </script>