checkout_base.rb

module Checkout::Base
  extend ActiveSupport::Concern

  included do
    expose(:cc_dummy_data) { cc_data }
    respond_to :json
  end

  def create
    build_resource

    @resource.save

    respond_with @resource
  end

  private

  def build_resource
    @resource ||= resource_scope.new(permitted_params.deep_merge(additional_order_params))
  end

  def order_params
    {
      order: [
        :first_name, :last_name, :billing_address, :zip_code,
        :card_brand, :"card_expires_on(3i)",:"card_expires_on(2i)",:"card_expires_on(1i)",
        :card_number, :card_vv, :waiver
      ]
    }
  end

  def cc_data
    if Rails.env.production?
      { number: '', cvv: '' }
    else
      { number: '4024007148673576', cvv: '123' }
    end
  end
end