On 09/26/2016 01:24 PM, HP3 wrote:
It seems like 0.9 does not have 'parent' in `SessionTransaction`.
Instead, it has `_parent`.

Would `_parent` suffice?

yes, use _parent. i pushed up docs to 1.0 and 1.1 which indicate that _parent is the original attribute in the absense of .parent.



On Monday, September 26, 2016 at 12:09:55 PM UTC-5, HP3 wrote:

    Thank you Mike,

    So basically, I should move the cleanup from
    `after_commit`/`after_rollback` to `after_transaction_end` and do it
    **only** if `transaction.parent is None`?

    Recap'ing the solution (Jason's and yours combined):

    1- On `after_flush`, call `history_meta.create_version()` for each
    object that is changing so its `XYZHistory` instance is created and
    can be stored within `session.info <http://session.info>`.
    2. On `before_commit`, do `session.add()` for each history instance
    (`XYZHistory`) in `session.info <http://session.info>` and increase
    `version` of each object associated to each history instance.
    3. On `after_transaction_end`, if `transaction.parent` is `None`,
    clean up `session.info <http://session.info>`.

    True?

    And, even if there was a `session rollback` and/or `soft rollback`,
    the `session.info <http://session.info>` would have been cleaned up
    by step 3. True?



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