Re: [Sqlalchemy-tickets] [sqlalchemy] #2741: uselist=False collection not backref deferred, leads to unwanted load/autoflush

[sqlalchemy <mi...@zz...>]

#2741: uselist=False collection not backref deferred, leads to unwanted
load/autoflush
-----------------------------------+-------------------------------
      Reporter:  zzzeek            |      Owner:  zzzeek
          Type:  defect            |     Status:  closed
      Priority:  highest           |  Milestone:  0.8.xx
     Component:  orm               |   Severity:  major - 1-3 hours
    Resolution:  worksforme        |   Keywords:
Progress State:  completed/closed  |
-----------------------------------+-------------------------------

Comment (by zzzeek):

 we can also get the "multiple rows" condition by just turning off
 active_history:

 {{{
 #!python
 A.b.impl.active_history = False

 b1.a = a2

 sess.commit()

 print a2.b
 }}}

 it might be an interesting feature to allow users to override
 active_history, right now you can turn it on if not already, but not turn
 it off at the configuration level.

--
Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2741#comment:3>
sqlalchemy <http://www.sqlalchemy.org/>
The Database Toolkit for Python