title: ActiveAdmin Changing Links to Name Instead of ID
body: <p>For one of my models in ActiveAdmin, it is changing the URLs to use the name instead of ID.  </p>
  
  <p>For example: <code>http://localhost:3000/admin/product/PH</code> instead of <code>http://localhost:3000/admin/product/1</code></p>
  
  <p>I don't understand why it's doing that since all of the other models are working correctly (using ID).</p>
  
  <p>This model has no <code>models/product.rb</code> file. </p>
  
  <pre><code># app/admin/product.rb
  ActiveAdmin.register Product do
    permit_params :name,
      :amount,
      :description
  end
  </code></pre>
  
  <p>I checked the <a href="https://github.com/activeadmin/activeadmin/blob/master/docs/2-resource-customization.md#setting-up-strong-parameters" rel="nofollow noreferrer">documentation</a> and didn't see anything that looks like it would make this happen.  </p>
  
  <p>Also, all of the other SO posts I've seen related to name and URL seem to be trying to do the opposite - changing the default route to use name (instead of ID).</p>