title: ActiveScaffold hide fields on update form based on record data
body: <p>I have a Rails app that uses activescaffold and I would like to hide some fields on the update for some of the records.</p>
  
  <p>I have been trying to do it using helper methods, but I can not seem to get that to work.</p>
  
  <p>What is the best way to do this?</p>