Ian,
Thanks for your reply.
I implemented custom manipulator for ADDing but do not know how to do
that for CHANGING.
############
class ProductManipulator(formfields.Manipulator):# ADD  manipulator
                 def __init__(self):
                 .....
                   ........
                def save(self,data):
                  ....
                    ......
#################
In my code I  call it like this

manipulator = ProductManipulator()

then later
  new_trade = manipulator.save(new_data)
where new_data are supplied by a user via a form.

As to CHANGE manipulator, I do not know how to fill in (prepopulate)the
form with the data, being changed, from the database. Any idea?

Thanks for reply and help
L.


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