title: How to pass validation errors ActiveAdmin
body: <p>I have a custom controller (I'm using it as a patch for issue <a href="https://stackoverflow.com/questions/40979595/activeadmin-not-saving-has-many-nested-object">ActiveAdmin not saving has_many nested object</a>)</p>
  
  <p>the problem I need to fix is the validation errors and keeping the form data. Before I did the custom controller, the errors would pop up underneath the input field like so </p>
  
  <p><a href="https://i.stack.imgur.com/nDKfq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nDKfq.png" alt="Screnshot"></a></p>
  
  <p>but now they do not show up. Please help! Thanks :)</p>
  
  <p><strong>ActiveAdmin.register</strong></p>
  
  <pre><code>controller do
      def create
          @section = AbqCouncilors::Councilor.create!(permitted_params[:abq_councilors_councilor].as_json)
          redirect_to admin_abq_councilor_path, notice: "Councilor was successfully created!"         
      end
  end
  </code></pre>