On Jan 30, 2012, at 12:07 PM, Joril wrote: > On Jan 30, 5:02 pm, Michael Bayer <mike...@zzzcomputing.com> wrote: > >> What's happening above is the session is not in a transaction due to >> autocommit, so when you call session.connection(), that connection is thrown >> away as far as the Session is concerned. If you wanted to do it the >> "external" way like that, you need to set session.bind = connection, then >> the Session will do everything in terms of that connection. You could skip >> the autocommit/begin/flush and just do a single session.commit(), which from >> the tx point of view would not be the actual commit. >> >> Session has a public API for this, though it doesn't at the moment accept >> the XID, but you can grab the one it generates: >> >> session = sessionmaker(engine) >> session.prepare() >> session.add(obj1) >> session.flush() > > The prepare() should be called _before_ issuing changes to the DB?
oh....sorry no I got that backwards. Should be at the end, yes. > I > thought it was a substitute for the first commit()... Anyway, so after > the flush the transaction will be in a "prepared" state and waiting > for the COMMIT PREPARED? I'll try it, thanks :) > >> either way should work, but turning on SQL echo is the best way to see what >> is/is not happening. > > Yes I have echo active but it looks like I misunderstood the sequence > of commands to give :/ > > Many thanks for your time! > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To post to this group, send email to sqlalchemy@googlegroups.com. > To unsubscribe from this group, send email to > sqlalchemy+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/sqlalchemy?hl=en. > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
