[Zope] dtml-with problems

[Jeffrey Shell]

> Hi all,
> 
> I have a DTML Document that calls a DTML Method:
> 
> <dtml-var standard_html_header>
> <dtml-var expr="renderReportType(renderType='edit',
> renderID=reportTypeIDSearch)">
> <dtml-var standard_html_footer>

Try:

 <dtml-var expr="renderReportType(_,_.None,renderType='edit',
                 renderID=reportTypeIDSearch)">

The first two arguments (_,_.None) pass in the namespace (aka, '_') and
an entity known as the client (here as _.None).  The _.None stems from
very very old behaviour of the underpinnings of DTML Methods.

There are some How-To's on the Zope site that talk about the Namespace,
which is a critical feature of DTML.  Without passing in the _ and
_.None, the DTML Method that you're calling loses the namespace of the
DTML Method/Document calling it.

Another alternative would be to do:

<dtml-with expr="_.namespace(renderType='edit',
renderID=reportTypeIDSearch)">
 <dtml-var renderReportType>
</dtml-with>

(you could also use the dtml-let tag here).  The dtml-with tag pushes a
new level onto the namespace and places values in it, and then renders
the 'renderReportType' DTML inside of that namespace, and then pops the
new level of namespace off.

ERgh.  I think.  :)