title: Can you use strong parameters and whitelist attributes together in Rails 3?
body: <p>We're on Rails 3.  We'd like to switch to strong parameters through the <a href="https://github.com/rails/strong_parameters" rel="nofollow">strong_parameters</a> gem.</p>
  
  <p>The documentation of the gem says that to use this gem, the following value needs to be changed from <code>true</code> to <code>false</code> in the <code>config/application.rb</code> file</p>
  
  <pre><code>config.active_record.whitelist_attributes = false
  </code></pre>
  
  <p>We have many models and controllers in our application.  Making this change means we have to migrate ALL our models and controllers to strong parameters?</p>
  
  <p>Ideally we'd like to migrate gradually.  That is, start using strong parameters for the new models and controllers, and then gradually update all the models and controllers.</p>
  
  <p>So can you use strong parameters for some models/controllers and whitelist attributes for others?</p>
  
  <p>Thank you.</p>