[Zope] Me vs. The Zope Book Pt. 1

[Samir Mishra]

I can't get some of the things mentioned in the ZB to work as expected. If
anyone could tell me what I'm doing wrong, that'll be much appreciated.

1. The following code -
    <dtml-tree>
      <dtml-var getId>
    </dtml-tree>
gives me nothing! Even in root, when I'm logged in as site manager,  & when
I'm an authenticated user, when the script has a proxy role of Manager, when
it doesn't, etc. According to ZB (pg. 124) I should see a display of an HTML
tree. What am I missing?

Samir