ruby-on-rails – Ruby on Rails,使用同名枚举的问题

<div class="col-xs-3">
    <%= f.select(:require_booking,get_advance_booking.collect {|p| [ p[:require_booking],p[:require_booking] ] },{include_blank: false},:class => 'form-control') %>
</div>

和

<div class="col-xs-3">
    <%= f.select(:instant_booking,get_instant_booking.collect {|p| [ p[:instant_booking],p[:instant_booking] ] },:class => 'form-control') %>
</div>

这是我的application_helper.rb

def get_advance_booking
    ret = [{:require_booking => 'No'},{:require_booking => 'Yes'}]
  end

 def get_instant_booking
    ret = [{:instant_booking => 'No'},{:instant_booking => 'Yes'}]
  end

但现在的问题是,在我的模型product.rb中,我无法使用相同的名称设置枚举：

class Product < ActiveRecord::Base
    enum require_booking: {
        No: 0,Yes: 1
    }
    enum instant_booking: {
        No: 0,Yes: 1
    }
end

我收到的错误是您尝试在模型“Product”上定义名为“instant_booking”的枚举,但这会生成一个实例方法“No？”,该方法已由另一个枚举定义.如何解决这样的冲突？