I just ran across something I believe maybe a bug in session.refresh()
dealing with adjacency lists.
The situation is after a session.refresh() on a node (in my case a
'job'), the children and grandchildren
have some of their values overridden by the refreshed node. Calling
session.expire_all() fixes this.
Also in this case I am using joined table inheritance, and fields in
question are in the base table.
Unfortunately I haven't been able to come up with a simple example that
isn't based on my schema.
>>> from asset.farm.farmdb import *
>>> session=create_session()
>>> job=session.query(Job).get('testshow/201/s22/t04/lgt/cA')
>>> type(job)
<class 'asset.farm.farmdb.CamJob'>
>>> type(job.Children[0])
<class 'asset.farm.farmdb.CmpJob'>
>>> type(job.Children[0].Children[0])
<class 'asset.farm.farmdb.PassJob'>
>>> job.end_frame
2063.0
>>> job.Children[0].end_frame
25.0
>>> job.Children[0].Children[0].end_frame
25.0
>>> session.refresh(job)
>>> job.end_frame
2063.0
>>> job.Children[0].end_frame
2063.0
>>> job.Children[0].Children[0].end_frame
2063.0
>>> type(job.Children[0])
<class 'asset.farm.farmdb.CmpJob'>
>>> session.expire_all()
>>> job.Children[0].end_frame
25.0
>>> job.Children[0].Children[0].end_frame
25.0
>>>
--
David Gardner
Pipeline Tools Programmer
Jim Henson Creature Shop
[email protected]
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