On 6/24/15 10:03 AM, Mattias Lagergren wrote:
Hi guys,
I'm trying to retrieve modified (new, deleted and dirty) instances
from the session, before commit but after a flush.
Example:
|
# Update and create objects.
...
|# This is fine and I have my dirty instances:
||print||||session.dirty|||, session.new, session.deleted
session.flush()
||
|||# At this point each set is empty:
||print session.dirty|||, session.new, session.deleted||
session.commit()
|
It seems like the finalize_flush_changes
<http://docs.sqlalchemy.org/en/rel_0_9/orm/internals.html#sqlalchemy.orm.session.UOWTransaction.finalize_flush_changes>
is called when flushing remove the objects from the session new, dirty
and deleted.
Is there any way I can retrieve those changes after flush but before
commit?
yes use the after_flush() event:
http://docs.sqlalchemy.org/en/rel_1_0/orm/events.html?highlight=after_flush#sqlalchemy.orm.events.SessionEvents.after_flush
I'm using SqlAlchemy 0.9.7
Thanks!
Mattias L
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