On Mon, Mar 30, 2015 at 1:09 PM, uralbash <svintso...@gmail.com> wrote:
> Hello,
>
> I want to set up in each session was my custom attribute, for example:
>
> from sqlalchemy.orm import scoped_session, sessionmaker
>
> Session = my_wapper(scoped_session(sessionmaker()))
> session1 = Session()
> session2 = Session()
>
> hasattr(session1, foo)  # True: What I want
> hasattr(session2, foo)  # True: What I want
> print(session1.foo)
>
> What is the best way to do it? I have no idea how I can change the object
> from __call__ function. I also did not find that something like
> Session.set_property.
>

You can define a subclass of the sqlalchemy Session, and ask
sessionmaker to return instances of that class by passing the "class_"
parameter to sessionmaker():

http://docs.sqlalchemy.org/en/rel_0_9/orm/session_api.html#session-and-sessionmaker

Would that do what you wanted?

Simon

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