I'm trying to get a certain access pattern to work and I need a bit of help:
https://gist.github.com/deontologician/5922496
What I'm trying to do is use an association proxy to create a view of a
collection that looks like a list of dictionaries (for serializing to
json). I also want to update
On Jul 3, 2013, at 4:33 PM, Josh Kuhn deontologic...@gmail.com wrote:
I'm trying to get a certain access pattern to work and I need a bit of help:
https://gist.github.com/deontologician/5922496
What I'm trying to do is use an association proxy to create a view of a
collection that looks
On Jul 3, 2013, at 5:06 PM, Michael Bayer mike...@zzzcomputing.com wrote:
Do the UPDATE through Session.execute() so it's within the same transaction.
.. or even just query(Gadget).with_parent(some_widget).update({machine_id:
some_widget.machine_id}), then you can have those Gadget objects
I've attempted the following:
from sqlalchemy import Column, Integer, String, ForeignKey, create_engine
from sqlalchemy.orm import sessionmaker, relationship
from sqlalchemy.event import listen
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.ext.associationproxy import
On Jul 3, 2013, at 5:52 PM, Josh Kuhn habi...@gmail.com wrote:
I still get an integrity error because the after_flush happens after I've
already tried to insert the null gadgets. If I move the flush after the
widget is added to the session, but before the gadgets are, then the
On Wed, Jul 3, 2013 at 7:30 PM, Michael Bayer mike...@zzzcomputing.comwrote:
@event.listens_for(Gadget, before_insert)
def before_gadget(mapper, connection, target):
target.machine_id = target.widget.machine_id
2. when widget is updated, gadgets need new machine_id, here UPDATE is
