By the way, you can't use db_session.commit() by default (Zope will
shout at you because it thinks it's smarter and that you must under
all circumstances go through transaction.commit()).
The solution is to change the session initialization code a bit (in
<yourproject>/model/__init__.py if you used the quickstart), like the
following:
from zope.sqlalchemy import ZopeTransactionExtension
from sqlalchemy.orm import scoped_session, sessionmaker
class _TransactionExtension(ZopeTransactionExtension):
def before_commit(self, session):
pass
# Global session manager. db_session() returns the session object
# appropriate for the current web request.
maker = sessionmaker(autoflush=True, autocommit=False, twophase=False,
extension=_TransactionExtension())
db_session = scoped_session(maker)
Note to developers: it would be nice if it were done by default in
quickstarted projects.
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