[Zope-CMF] concrete example of using path in portal_catalog search?

[Mark McEahern]

Does anyone have a concrete example of restricting a portal_catalog search
to a specific path?  I.e., how do I modify the following to display
published News Items from folder /x/y/z?

<div tal:define="results python:here.portal_catalog(
  portal_type='News Item',
  sort_on='Date',
  sort_order='reverse',
  review_state='published')">
  <div tal:repeat="obj results">
    ... do something with obj
  </div>
</div>

Related question:  Does the above "honor" the expiration date and do not
publish until dates--or do I have to be explicit about that?  Admittedly,
this question seems easy to test.

Thanks,

// mark

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