title: How to make field readonly based on group and status?
body: <p>I want to make field <code>readonly</code> based on group, and status. Like I have two groups:</p>
  <ol>
  <li>Manager Group</li>
  <li>User Group</li>
  </ol>
  <p>If I give <strong>User Group</strong> to <strong>any user</strong> and then change <strong>Status</strong> to <strong>Done</strong>, then field will be <code>readonly</code> for this user.</p>
  <p>Hope I was able to make it clear to understand. Thanks.</p>