[Zope] Probably a simple name space question

[Bert Jan Bakker]

Hi all,

I'm struggling with a problem in DTML
for a day now and I'm ready to beg for
someone to enlighten me.

Problem:

I want to call a Z SQL Method (say InsertFoo)
from a DTML Method (say CallingInsertFoo) and 
it just won't work.

The Z SQL Method takes three arguments, let's
call them a_id, b_id and c_id.

All three arguments are available to me
in the calling DTML Method. I can print
them in HTML. But when I call the query
with <dtml-var InsertFoo> I get the following
error:

"Error Type: Bad Request
 Error Value: ['a_id', 'b_id', 'c_id']"

I tried all sorts of things but I'm thinking
I am missing something obvious.

What am I doing wrong???


Greetings, BertJan Bakker