I ended up having problems with my backref (in any version of SA) so I
re-worked my mappers and now 0.5rc3 is generating correct SQL. So this
probably isn't a bug.
----
mapper(TypeNode, typehierarchy_table, properties={
'AutoPopNames':relation(TypeAutoPop, backref='TypeNode'),
'Children':relation(TypeNode, cascade="all",
backref=backref("Parent", remote_side=[typehierarchy_table.c.id]))},
save_on_init=False)
tn =
session.query(TypeNode).filter(TypeNode.Parent==parent).filter(TypeNode.type==t).filter(TypeNode.project==show).first()
2008-11-10 14:25:04,488 INFO sqlalchemy.engine.base.Engine.0x...df50
SELECT typehierarchy.project AS typehierarchy_project,
typehierarchy.parent AS typehierarchy_parent, typehierarchy.id AS
typehierarchy_id, typehierarchy.type AS typehierarchy_type,
typehierarchy.static AS typehierarchy_static
FROM typehierarchy
WHERE typehierarchy.parent IS NULL AND typehierarchy.type = %(type_1)s
AND typehierarchy.project = %(project_1)s
LIMIT 1 OFFSET 0
2008-11-10 14:25:04,489 INFO sqlalchemy.engine.base.Engine.0x...df50
{'type_1': 'h2_prj', 'project_1': 'sid'}
David Gardner wrote:
> Had a problem this morning where SA 0.5rc3 was returning None, while
> 0.5rc2 and 0.4.8 returned the expected object/row.
>
> tables & mappers:
> ----------------------------------
> typehierarchy_table = Table('typehierarchy', metadata, autoload=True)
> typehierarchy_names_table = Table('typehierarchy_names', metadata,
> autoload=True)
> mapper(TypeNode, typehierarchy_table, properties={
> 'AutoPopNames':relation(TypeAutoPop, backref='TypeNode'),
> 'Children':relation(TypeNode,
> primaryjoin=(typehierarchy_table.c.id==typehierarchy_table.c.parent),
>
> remote_side=[typehierarchy_table.c.parent],backref='Parent')},
> save_on_init=False)
>
> mapper(TypeAutoPop,typehierarchy_names_table, save_on_init=False)
>
>
> 0.5.0rc3:
> ----------------
> >>> from assetdb import *
> DEV BRANCH:assetdb.py
> >>> print sqlalchemy.__version__
> 0.5.0rc3
> >>> session=create_session()
> >>> t='h2_prj'
> >>> show='sid'
> >>> parent=None
> >>> db.echo=True
> >>> tn =
> session.query(TypeNode).filter(TypeNode.Parent==parent).filter(TypeNode.type==t).filter(TypeNode.project==show).all()
> 2008-11-10 12:19:06,534 INFO sqlalchemy.engine.base.Engine.0x...af50
> SELECT typehierarchy.project AS typehierarchy_project,
> typehierarchy.parent AS typehierarchy_parent, typehierarchy.id AS
> typehierarchy_id, typehierarchy.type AS typehierarchy_type,
> typehierarchy.static AS typehierarchy_static
> FROM typehierarchy
> WHERE NOT (EXISTS (SELECT 1
> FROM typehierarchy AS typehierarchy_1
> WHERE typehierarchy.id = typehierarchy_1.parent)) AND typehierarchy.type
> = %(type_1)s AND typehierarchy.project = %(project_1)s
> 2008-11-10 12:19:06,535 INFO sqlalchemy.engine.base.Engine.0x...af50
> {'type_1': 'h2_prj', 'project_1': 'sid'}
> >>> tn
> []
> >>>
>
>
> 0.5.0rc2:
> ----------------
> >>> from assetdb import *
> DEV BRANCH:assetdb.py
> >>> print sqlalchemy.__version__
> 0.5.0rc2
> >>> session=create_session()
> >>> t='h2_prj'
> >>> show='sid'
> >>> parent=None
> >>> db.echo=True
> >>> tn =
> session.query(TypeNode).filter(TypeNode.Parent==parent).filter(TypeNode.type==t).filter(TypeNode.project==show).all()
> 2008-11-10 12:30:50,452 INFO sqlalchemy.engine.base.Engine.0x...9a10
> SELECT typehierarchy.project AS typehierarchy_project,
> typehierarchy.parent AS typehierarchy_parent, typehierarchy.id AS
> typehierarchy_id, typehierarchy.type AS typehierarchy_type,
> typehierarchy.static AS typehierarchy_static
> FROM typehierarchy
> WHERE NOT (EXISTS (SELECT 1
> FROM typehierarchy
> WHERE typehierarchy.id = typehierarchy.parent)) AND typehierarchy.type =
> %(type_1)s AND typehierarchy.project = %(project_1)s
> 2008-11-10 12:30:50,452 INFO sqlalchemy.engine.base.Engine.0x...9a10
> {'type_1': 'h2_prj', 'project_1': 'sid'}
> >>> tn
> [<assetdb.TypeNode object at 0x201f3d0>]
>
>
>
> --
>
> David Gardner
> Pipeline Tools Programmer, "Sid the Science Kid"
> Jim Henson Creature Shop
> [EMAIL PROTECTED]
>
>
>
> >
>
>
--
David Gardner
Pipeline Tools Programmer, "Sid the Science Kid"
Jim Henson Creature Shop
(323) 802-1717 [EMAIL PROTECTED]
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