[Zope] getting object reference from an id string?

[Darran Edmundson]

Say one has an object reference and knows the
string id of a child node.  From this info, we
want an object reference to the named child.

I'd like someone to prove me wrong that there
is not a one-liner to accomplish this seemingly
trivial task.  I've had to resort to (off the
top of my head) code like:

<dtml-in "objectValues(['child meta-type'])">
   <dtml-with sequence-item>
      <dtml-if "id == desired_id">
          <dtml-call "REQUEST.set('desired_ref',_['sequence-item'])">
      </dtml-if>
   </dtml-with>
</dtml-in>

I'm really looking for a solution that doesn't
require looping.  Since Zope enforces unique id's
at a given level, the name should be sufficient
to resolve the child object.

Darran.