[Zope] Default values in ZSQL methods

[Joel Burton]

I have a ZSQL method, by_id, which accepts a 'staffid' as 

  staffid:int=0

(allow an integer-only id, but default to zero.)

The method is:

  select *
  from vlkpstaff

  <dtml-if "staffid > 0">
    where staffid=<dtml-sqlvar staffid type=int>
  </dtml-if>

(if a real staff ID was passed, use it in the where statement, otherwise
show all records)

The works great, even with direct traversal, so I can say things like

  http://www.foo.com/staffFolder/by_id/100

to get staff ID#100.


However, in a DTML method, 'roster', I say:

  <dtml-in by_id>
    ... show staff info here ...
  </dtml-in>

hoping to show *all* staff. Instead, I get *none*.

If I call it explicity, as

  <dtml-in "by_id('staffid':0)">
    ...
  </dtml-in>

it works fine, but this is a bit ugly, and it creates dependencies on
my keeping this staffid field w/the same name, etc.

Of course, I could have two queries, by_id, and showAll, and this work
fine, but again, it forces me to keep two queries in sync when keeping
just one in sync feels right.

Is there a way out of this little mess?


-- 
Joel Burton   <jburton@scw.org>
Director of Information Systems, Support Center of Washington