Hi
I started a pyramid project using the alchemy scaffold (includes
ZopeTransactionExtension to scope sessions to requests, see [1]).
Trying to insert many 'shots' into a MySQL database with a single SQL
statement, I implemented the following view:
DBSession = scoped_session(
sessionmaker(extension=ZopeTransactionExtension()))
@view_config(route_name='upload')
def upload_view(request):
shotlist = []
shotlist.append(Shot(score=92))
shotlist.append(Shot(score=82))
shotlist.append(Shot(score=99))
shotlist.append(Shot(score=78))
# The transaction is only committed if this line is enabled:
# DBSession.add(Shot(score=42))
DBSession.execute(Shot.__table__.insert(),
[shot.__dict__ for shot in shotlist])
return Response('OK')
But the transaction is not committed. I discovered that the transaction
is committed only if I call add() on DBSession (all five shots are
inserted then)...
I'm using python 3.3.1 and the following libraries:
- PyMySQL3 0.5
- waitress 0.8.7
- SQLAlchemy 0.8.2
- transaction 1.4.1
- zope.sqlalchemy 0.7.3
- zope.interface 4.0.5
- zope.deprecation 4.0.2
- ...
[1]
http://docs.pylonsproject.org/projects/pyramid/en/latest/tutorials/wiki2/installation.html#decisions-the-alchemy-scaffold-has-made-for-you
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