[Zope-DB] dtml-sqlgroup dont render optional or multiple

[Jean-Claude Orlowski]

I am sorry to have disturbed you, but after your mail, i have the solution.
I have believe that  with the test tab int the ZSQLmethod with one, two 
or zero parameter, the ZSQLmethod render the clause where with one,two 
or zero conditions.
I have write three form with one ,two or zero parameter and the 
ZSQLmethod work fine.
This point is not evident  in the Zope book for a beginner.
Zope is a very good product, thank you for your help
Jean-Claude Orlowski