On Sep 8, 3:45 pm, Mike Orr <[email protected]> wrote:
> On Tue, Sep 8, 2009 at 3:26 PM, Wyatt
>
>
>
> Baldwin<[email protected]> wrote:
>
> > On Sep 8, 1:28 pm, Mike Orr <[email protected]> wrote:
> >> On Tue, Sep 8, 2009 at 1:17 PM, gsk<[email protected]> wrote:
>
> >> > Hi,
> >> > Newbie question: I am using SqlAlchemy for Postgresql backend. I have
> >> > setup a schema in the db where all the tables I need exist. So, I have
> >> > the ORM class as below where I would dynamically pass the value for
> >> > the schema:
>
> >> > class Foo(Base):
> >> >    __tablename__ = 'foo_table'
> >> >    __table_args__ = {'schema': someschema}
>
> >> > ...
>
> >> > I have put the db schema value in test.ini file hoping to use
> >> > pylons.config. But, apparently, Pylons config object is not yet setup
> >> > when model/__init__.py is initialized. Any suggestions on how I could
> >> > get around this? (I've hardcoded the schema at the moment but need to
> >> > parameterize as the dev and test environments use different postgresql
> >> > schema spaces)
>
> >> Er, I'm not sure if you can do that.
>
> > If you're careful with your imports, this should be possible.
>
> > For example, you could define your Foo class in model/foo.py, then
> > make sure that model.foo isn't imported until after app initialization
> > occurs (i.e., after make_app runs). This should be pretty easy if you
> > only import model.foo from your controller modules.
>
> Part of my approach was to ensure the entire model or any part of it
> can be imported without the rest of the application, which is useful
> in standalone maintenance utilities.

I am totally on board with that approach. :) In fact, I usually prefer
to put my model into an entirely separate package--not buried within
any particular app (Web, desktop, console, etc). I was only proposing
something that might work for the OP or for any simpler case where
such separation isn't needed (though I'm of a mind that it almost
always will be).
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