title: Django - Display User Email in User Profile Admin
body: <p>This may be a very simple question, but I haven't been able to find it in SO.</p>
  
  <p>I created a User Profile Model for additional user info via OnetoOneField. Now for the Admin of the User Profile Model, I want to display the email field found in the User model. I tried:</p>
  
  <pre><code># models.py
  def email(self):
      return self.user.email
  
  # admin.py 
  fieldsets = [
      ('',    {'fields': [
          ...
          'email',
          ...
      ]})
  ]
  list_display = (
      ...
      'email',
      ...
  )
  </code></pre>
  
  <p>This worked for the <code>list_display</code> section, but for <code>fieldsets</code>, the following error popped up:</p>
  
  <blockquote>
    <p>Unknown field(s) (email) specified for UserProfile. Check fields/fieldsets/exclude attributes of class UserProfileAdmin.</p>
  </blockquote>
  
  <p>Is there a way to work around this? Thank you in advance!</p>