Mike, very thanks for answer. I just use custom function and add to object
session. I create some lists to save object and after rollback i add them
On this func i just use session.dirty, session.new, session.delete
for rollback i use
def user_commit():
...
config.session.rollback()
...
for item in saved_items():
config.session.add(item)
...
config.session.commit()
config.session.user_commit=user_commit
--
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