hiya -
going to say right off this is the naming issue, there's an unfortunately
stalled PR to make sure the documentation emphasizes this at
https://github.com/sqlalchemy/sqlalchemy/pull/4970 . basically the same note as
you see in
https://docs.sqlalchemy.org/en/13/orm/extensions/hybrid.html#defining-expression-behavior-distinct-from-attribute-behavior.
basically you are assigning your setter function to a brand new hybrid called
"email_setter". name it "def email(self, val)" instead.
On Thu, Dec 19, 2019, at 3:34 PM, YKdvd wrote:
> We have a "Users" model with this, which was a hybrid property to wrap the
> "email" column temporarily. The database column (MySQL 5.7) is "email", but
> defined by ORM as "_email", with an "email" hybrid property to access and set:
>
> _email = Column(*u'email'*, String(255))
> ...
> @hybrid_property
> def email(self):
> return self._email.replace("olddomain.com", "newdomain.com")
> @email.setter
> def email_setter(self, val):
> self._email = val
>
> In 1.1.18, something like "self.email = someEmailAddress" works fine. We're
> testing an upgrade to 1.3.11, and that now throws an "AttributeError: can't
> set attribute" from hybrid.py __set__().
> That seems to be at a simple check "if self.fset *is *None", so it's almost
> as if the decorator never stored the setter function? I'm digging into the
> hybrid docs, and it seems a pretty innocuous setter, but there might be
> something about it that
> 1.3 is being stricter about? I don't see any SAwarnings at startup that
> might apply. I changed the getter to simply return self._email in case that
> was a problem, but that didn't help.
>
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