Thank you very much for all the responses.
I found the source of the problem in my code.
I was adding a property to Model
Model.revision = property(fget=XXX, fset=YYY)
which conflicted with the revision field I was having trouble with.
Sorry for the confusion.
Best,
AG
On Aug 10, 2:22 pm
I have a field:
revision = models.IntegerField(default=0)
on a model.
I assumed that if I set a default value for a field, I am free to
create an object that does not set 'revision', and save it.
However, this produces an IntegrityError:
IntegrityError: XXX.revision may not be NULL
When I check
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