用户注册Devise和Paypal

Question

我想Paypal在Devise用户注册过程中集成.我想要的是有一个基于标准的rails表单devise resource,它也有属于用户模型的自定义字段.

当用户填写这些字段并点击注册时,它将被重定向到Paypal,当他从paypal清除并返回我们的网站时,必须创建用户数据.

对于用户填写PayPal表格但未返回我们网站的情况,我们必须在重定向到Paypal之前保留用户记录.

为此,我们可以在用户模型中创建一个标志并使用Paypal IPN,当通知用户事务时,设置该标志.

但是,如果用户被重定向到Paypal但未完成交易,如果用户返回注册并再次注册,我们的模型不应抛出错误,表示输入的电子邮件已存在于表中.

我们如何处理所有这些场景,是否有可用的gem或插件？

Answer 1

在这里,我发布了执行整个过程的详细代码.

registration_controller.rb

module Auth
  class RegistrationController < Devise::RegistrationsController
    include Auth::RegistrationHelper

    def create
      @user = User.new params[:user]
      if @user.valid?
        redirect_to get_subscribe_url(@user, request)
      else
        super
      end
    end
  end
end

registration_helper.rb

module Auth::RegistrationHelper
  def get_subscribe_url(user, request)
    url = Rails.env == "production" ? "https://www.paypal.com/cgi-bin/webscr/?" : "https://www.sandbox.paypal.com/cgi-bin/webscr/?"
    url + {
        :ip => request.remote_ip,
        :cmd => '_s-xclick',
        :hosted_button_id => (Rails.env == "production" ? "ID_FOR_BUTTON" : "ID_FOR_BUTTON"),
        :return_url => root_url,
        :cancel_return_url => root_url,
        :notify_url => payment_notifications_create_url,
        :allow_note => true,
        :custom => Base64.encode64("#{user.email}|#{user.organization_type_id}|#{user.password}")
    }.to_query
  end
end

payment_notification_controller.rb

class PaymentNotificationsController < ApplicationController
  protect_from_forgery :except => [:create]
  layout "single_column", :only => :show

  def create
    @notification = PaymentNotification.new
    @notification.transaction_id = params[:ipn_track_id]
    @notification.params = params
    @notification.status = "paid"
    @custom = Base64.decode64(params[:custom])
    @custom = @custom.split("|")
    @user = User.new
    @user.email = @custom[0]
    @user.organization_type_id = @custom[1].to_i
    @user.password = @custom[2]
    if @user.valid?
      @user.save
      @notification.user = @user
      @notification.save
      @user.send_confirmation_instructions
    end
    render :nothing => true
  end

  def show
  end
end