> I'm trying to automatically count each time a record is being updated. I
> could make a lambda function that worked for a dictionary:
> Field('edits', 'integer', compute=lambda r: int(r['edits'] or 0) + 1 ),
>
> However, I don't get this to work in practice. Can a lambda for edits not
> use its own value?
>
I think you are right in that point, from book:
- compute is an optional function. If a record is inserted or updated,
the compute function will be executed and the field will be populated with
the function result. The record is passed to the compute function as a
dict, and *the dict will not include the current value of that, or any
other compute field.*
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