title: nested routes and controller different from model
body: <p>I have a nested model</p>
  
  <pre><code>resources doctors do
      resource  :doctor_profile
      resource  :organization
  end
  </code></pre>
  
  <p>I want to have a registration controller called "doctor_registration_controller"</p>
  
  <p>Then I want the doctors to register something like this</p>
  
  <pre><code>match 'doctor_signup', 'to:doctor_registration#new', :as =&gt; "doctor_signup"
  </code></pre>
  
  <p>to produce this url </p>
  
  <p>localhost:3000/doctor_signup</p>
  
  <p>What should be in the routes file?</p>