title: Accessing ApplicationHelper from User.rb model
body: <p>Here's some simple code that isn't working:</p>
  <pre><code>module ApplicationHelper
    def industries
      industries = ['Agriculture','Food', etc.]
    end
  end
  
  class User &lt; ActiveRecord::Base
    include ApplicationHelper
    validates_inclusion_of :industries, :in =&gt; ApplicationHelper.industries
    ...
  end
  </code></pre>
  <p>This code is failing when a user action is run with <code>undefined method 'industries'</code>. Do you know how I can reference the helper (or preferably just industries) the right way?</p>
  <hr />
  <h3>Edit</h3>
  <p>Based on the code in Mauricio's answer below, how can <code>INDUSTRIES</code> be accessed in a controller and a view? I'm having real trouble making industries accessible everywhere, but it really needs to be for my application.</p>