also here, this is possibly related to the change that you and I made
together, that when creating a relationship off an inherited mapper,
the relations are going to build off of table "b" alone, and not
table "a". if you want your relations to build off the super-mapper,
you have to be explicit about the primary/secondary joins. if you
recall, the alternative was that the ORM would raise an exception
that it was "ambiguous".
On Mar 17, 2006, at 10:46 AM, Florian Boesch wrote:
Was working with revision 1117 successfully. Now I updated to the
downloadable
version 0.1.4 and it breaks on me at a line resmebling:
B.mapper = sqla.mapper(B, b, inherits=a)
I also tried with the current trunk, same result. Below the traceback.
Traceback (most recent call last):
File "./start-shop.py", line 20, in ?
from shop.controllers import Root
File "/home/florian/shop_ng/shop/shop/controllers.py", line 3, in ?
from shop import platforms, tools, mandator, oracle_session
File "/home/florian/shop_ng/shop/shop/tools.py", line 2, in ?
from shop.application import model
File "/home/florian/shop_ng/shop/shop/application/__init__.py",
line 1, in ?
from sqla import orm, model
File "/home/florian/shop_ng/shop/shop/application/sqla/orm.py",
line 31, in ?
products = sqla.mapper(Product, model.product, inherits=contents)
File
"/usr/local/lib/python2.4/site-packages/SQLAlchemy-0.1.4-py2.4.egg/
sqlalchemy/mapping/__init__.py",
line 55, in mapper
return Mapper(class_, table, *args, **params)
File
"/usr/local/lib/python2.4/site-packages/SQLAlchemy-0.1.4-py2.4.egg/
sqlalchemy/mapping/mapper.py",
line 187, in __init__
prop.init(key, self)
File
"/usr/local/lib/python2.4/site-packages/SQLAlchemy-0.1.4-py2.4.egg/
sqlalchemy/mapping/mapper.py",
line 859, in init
self.do_init(key, parent)
File
"/usr/local/lib/python2.4/site-packages/SQLAlchemy-0.1.4-py2.4.egg/
sqlalchemy/mapping/properties.py",
line 189, in do_init
self.direction = self._get_direction()
File
"/usr/local/lib/python2.4/site-packages/SQLAlchemy-0.1.4-py2.4.egg/
sqlalchemy/mapping/properties.py",
line 238, in _get_direction
raise ArgumentError("Cant determine relation direction")
sqlalchemy.exceptions.ArgumentError: Cant determine relation direction
Cheers, Florian
-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting
language
that extends applications into web and mobile media. Attend the
live webcast
and join the prime developer group breaking into this new coding
territory!
http://sel.as-us.falkag.net/sel?
cmd=lnk&kid=110944&bid=241720&dat=121642
_______________________________________________
Sqlalchemy-users mailing list
Sqlalchemy-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/sqlalchemy-users
-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
_______________________________________________
Sqlalchemy-users mailing list
Sqlalchemy-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/sqlalchemy-users
