Hi, Why undermentioned code will not work with SA 0.2.6 anymore?
After rinning:
| #!/usr/bin/python
|
| from sqlalchemy import *
| from sqlalchemy.mods.threadlocal import assign_mapper
|
| class Foo(object):
| class Bar(object):
| pass
| def __init__(self, url):
| metadata = BoundMetaData(url)
| table = Table('test', metadata,
| Column('test_id', Integer),
| Column('foo', Boolean))
| assign_mapper(self.Bar, table)
|
| tmp = Foo("sqlite://")
| #del tmp
| tmp2 = Foo("sqlite://")
I'm getting this:
Traceback (most recent call last):
File "./test.py", line 18, in ?
tmp2 = Foo("sqlite://")
File "./test.py", line 14, in __init__
assign_mapper(self.Bar, table)
File "/usr/lib/python2.3/site-packages/sqlalchemy/mods/threadlocal.py", line
33, in assign_mapper
assignmapper.assign_mapper(objectstore.context, class_, *args, **kwargs)
File "/usr/lib/python2.3/site-packages/sqlalchemy/ext/assignmapper.py", line
31, in assign_mapper
m = mapper(class_, extension=extension, *args, **kwargs)
File "/usr/lib/python2.3/site-packages/sqlalchemy/orm/__init__.py", line 49,
in mapper
return Mapper(class_, table, *args, **params)
File "/usr/lib/python2.3/site-packages/sqlalchemy/orm/mapper.py", line 133,
in __init__
self._compile_class()
File "/usr/lib/python2.3/site-packages/sqlalchemy/orm/mapper.py", line 414,
in _compile_class
raise exceptions.ArgumentError("Class '%s' already has a primary mapper
defined. Use is_primary=True to assign a new primary mapper to the class, or
use non_primary=True to create a non primary Mapper" % self.class_)
sqlalchemy.exceptions.ArgumentError: Class '<class '__main__.Bar'>' already has
a primary mapper defined. Use is_primary=True to assign a new primary mapper
to the class, or use non_primary=True to create a non primary Mapper
--
-=[ Piotr Ozarowski ]=-
-=[ http://www.ozarowski.pl ]=-
pgpNSRtFhlHSd.pgp
Description: PGP signature
------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________ Sqlalchemy-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sqlalchemy-users
