Ok Michael,
thanks for confirming there's something wrong and simply I did not
misunderstood.
The problem is that, in a single thread, `request.user` *survives from
request to request* and is not affected by changes (like items deletion)
occurring in other threads until a `DBSession.refresh(request.user)` is
issued in that thread.
Here is my code:
#my session
DBSession = scoped_session(
sessionmaker(extension=ZopeTransactionExtension()))
#my request class
class RequestWithUserAttribute(Request):
@reify
def user(self):
userid = unauthenticated_userid(self)
if userid is None:
return None
else:
return DBSession.query(User) \
.filter(User.userid==userid) \
.first()
#set my custom request which provide user property
def main(global_config, **settings):
...
config.set_request_factory(RequestWithUserAttribute)
============
My [apache modwsgi setup][1] where 4 threads are set.
Reducing to 1 thread (obviously) the problem disappears.
<VirtualHost *:80>
...
# Setup mod_wsgi
# Use only 1 Python sub-interpreter. Multiple sub-interpreters
# play badly with C extensions.
WSGIApplicationGroup %{GLOBAL}
WSGIPassAuthorization On
WSGIDaemonProcess pyramid \
user=your_username group=your_username \
processes=1 \
threads=4 \
python-path=/home/your_username/bmh/env/lib/python2.6/site-packages
WSGIScriptAlias / /home/your_username/bmh/env/pyramid.wsgi
<Directory /home/your_username/bmh/env>
WSGIProcessGroup pyramid
Order deny,allow
Allow from all
</Directory>
</VirtualHost>
[1] http://docs.pylonsproject.org/projects/pyramid/1.0/tutorials/modwsgi/
I'll post any other code you may need.
Thanks for your attention
neurino
On Mon, Oct 17, 2011 at 11:11 PM, Michael Merickel <[email protected]>wrote:
> You would have to paste code to explain why your user object isn't
> re-queried between requests, because that makes no sense. All the @reify
> decorator does is cache the object "within a single request", it doesn't
> affect other threads or other requests at all. All I can think of is that
> you are either looking at the output wrong or you are sharing a database
> session across threads.
>
> --
>
> Michael
>
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