> As I mentioned some posts ago, I'm writing a managing system (front-
> and back-office) for the shop I own and I can't use the SingleSelect
> Field because it would contain about 16000 entries (products).
That of course is to much for a SingleSelectField.
> You mention "... incremental search ...". What is that?
I meant that focussing a SingleSelectField and then pressing e.g. "g e r" will
point the field to "Germany" (if it happens to be part of the list of course)
But again, for 16000 values that's not an option.
> The user must also be able to enter a new text (the product code) not
> contained in the list of choices. The field accepts also entry from a
> barcode reader (I think that I should take some time at a later time
> to explain what I'm currently developing ... by the way, I feel that
> the final product might interest more people, but I'm not having the
> time to manage all the implication of publishing it. Any help at a
> later point will be absolutely appreciated)
If that's your usecase, the ID you miss won't help you a bit. Because you can
only assign one if you have on - so you anyway need two code-paths to deal
with existing and new entries.
Just do something like this (pseudo-code):
def some_controller(self, completed_field=None, ...):
if Product.by_code(completed_field) is not None:
# work with an existing product
else:
# create a new one
Diez
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