Thanks, it works when I added the MetaData instance to the declarative_meta() call.
Have a great day! Regards, Alexey Maslov On Tue, Mar 31, 2009 at 6:02 PM, Michael Bayer <mike...@zzzcomputing.com>wrote: > user_profiles_tbl and your declarative_meta need to share same MetaData > instance. > > On Mar 31, 2009, at 9:56 AM, Alexey Maslov wrote: > > Michael, > > Thanks for the reply. Sorry, I am incredibly stupid for having forgotten > to replace 'object' with Base. > > Anyway, after I have inherited Country from Base it looks like SQLAlchemy > cannot detect the relation: > URL: http://localhost:5010/pages/subscribe/ > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/WebError-0.10.1-py2.5.egg/weberror/evalexception.py', > line 431 in respond > app_iter = self.application(environ, detect_start_response) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/Paste-1.7.2-py2.5.egg/paste/httpexceptions.py', > line 636 in __call__ > return self.application(environ, start_response) > File '/Users/amaslov/Projects/dou-pylons/doupy/firepython/middleware.py', > line 288 in __call__ > app_iter = self._app(environ, faked_start_response) > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/config/middleware.py', > line 72 in __call__ > return self.app(environ, start_response) > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/config/middleware.py', > line 113 in __call__ > resp = self.app(environ, start_response) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/Beaker-1.2.2-py2.5.egg/beaker/middleware.py', > line 81 in __call__ > return self.app(environ, start_response) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/Beaker-1.2.2-py2.5.egg/beaker/middleware.py', > line 160 in __call__ > return self.wrap_app(environ, session_start_response) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/Routes-1.10.3-py2.5.egg/routes/middleware.py', > line 130 in __call__ > response = self.app(environ, start_response) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/Paste-1.7.2-py2.5.egg/paste/registry.py', > line 350 in __call__ > app_iter = self.application(environ, start_response) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/Pylons-0.9.7-py2.5.egg/pylons/wsgiapp.py', > line 125 in __call__ > response = self.dispatch(controller, environ, start_response) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/Pylons-0.9.7-py2.5.egg/pylons/wsgiapp.py', > line 324 in dispatch > return controller(environ, start_response) > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/lib/base.py', line 258 > in __call__ > self.request_setup() > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/lib/base.py', line 298 > in request_setup > c.wpuser = setup_request_user(request, get_database) > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/lib/auth.py', line 48 > in setup_request_user > g.read_wordpress_options(db) > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/lib/app_globals.py', > line 98 in read_wordpress_options > self.siteurl = db.get_wp_option('siteurl') > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/model/db.py', line 150 > in get_wp_option > return get_option() > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/model/db.py', line 148 > in get_option > option = self.query_options.filter_by(option_name=name).one() > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/model/db.py', line 74 > in <lambda> > return property(fget=lambda self: self.session.query(cls)) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/session.py', > line 898 in query > return self._query_cls(entities, self, **kwargs) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/query.py', > line 91 in __init__ > self._set_entities(entities) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/query.py', > line 100 in _set_entities > self.__setup_aliasizers(self._entities) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/query.py', > line 114 in __setup_aliasizers > mapper, selectable, is_aliased_class = _entity_info(entity) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/util.py', > line 485 in _entity_info > mapper = class_mapper(entity, compile) > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/util.py', > line 560 in class_mapper > mapper = mapper.compile() > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/mapper.py', > line 662 in compile > mapper._post_configure_properties() > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/mapper.py', > line 691 in _post_configure_properties > prop.init() > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/interfaces.py', > line 408 in init > self.do_init() > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/properties.py', > line 709 in do_init > self._determine_joins() > File > '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site-packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/properties.py', > line 799 in _determine_joins > "many-to-many relation, 'secondaryjoin' is needed as well." % (self)) > ArgumentError: Could not determine join condition between parent/child > tables on relation UserProfile.country. Specify a 'primaryjoin' > expression. If this is a many-to-many relation, 'secondaryjoin' is needed > as well. > > The UserProfile class is mapped as: > mapper(UserProfile, user_profiles_tbl, properties={ > 'country' : relation(Country), > 'city' : relation(City), > 'skills' : relation(Skill, secondary=user_profile_skills_tbl, > order_by=Skill.name), > }) > > The Country class is: > Base = declarative_base() > class Country(Base): > __tablename__ = 'countries' > > id = Column(Integer, primary_key=True) > name = Column(Unicode) > alpha2 = Column(Unicode) > order_col = Column(Integer) > ... > > Thanks a lot! > > Regards, > Alexey Maslov > > > On Tue, Mar 31, 2009 at 5:24 PM, Michael Bayer > <mike...@zzzcomputing.com>wrote: > >> >> a class that doesn't extend your declarative base would have to be >> mapped explicitly using the mapper() function, otherwise it can't be >> referenced within a relation(). >> >> >> On Mar 31, 2009, at 8:04 AM, Alex Maslov wrote: >> >> > >> > Hello, >> > >> > We have been trying to mix a class inherited from declarative_base() >> > ("Country") with plain Python classes mapped using orm.mapper. We're >> > getting the error: >> > >> > UnmappedClassError: Class 'doupy.model.objects.Country' is not mapped >> > >> > code: >> > >> > Base = declarative_base() >> > class Country(object): >> > __tablename__ = 'countries' >> > ... >> > >> > Base.metadata.bind = engine >> > >> > We also tried to create Base using >> > Base = declarative_base(bind=engine) >> > and >> > Base = declarative_base(metadata=meta) >> > >> > with the same error. >> > >> > Full traceback below: >> > File '/Users/amaslov/Projects/dou-pylons/doupy/doupy/model/ >> > __init__.py', line 73 in <lambda> >> > return property(fget=lambda self: self.session.query(cls)) >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/session.py', line >> > 898 in query >> > return self._query_cls(entities, self, **kwargs) >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/query.py', line 91 >> > in __init__ >> > self._set_entities(entities) >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/query.py', line 100 >> > in _set_entities >> > self.__setup_aliasizers(self._entities) >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/query.py', line 114 >> > in __setup_aliasizers >> > mapper, selectable, is_aliased_class = _entity_info(entity) >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/util.py', line 485 >> > in _entity_info >> > mapper = class_mapper(entity, compile) >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/util.py', line 560 >> > in class_mapper >> > mapper = mapper.compile() >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/mapper.py', line >> > 662 in compile >> > mapper._post_configure_properties() >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/mapper.py', line >> > 691 in _post_configure_properties >> > prop.init() >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/interfaces.py', >> > line 408 in init >> > self.do_init() >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/properties.py', >> > line 707 in do_init >> > self._get_target() >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/properties.py', >> > line 719 in _get_target >> > self.mapper = mapper.class_mapper(self.argument, compile=False) >> > File '/Users/amaslov/Projects/dou-pylons/py/lib/python2.5/site- >> > packages/SQLAlchemy-0.5.2-py2.5.egg/sqlalchemy/orm/util.py', line 557 >> > in class_mapper >> > raise exc.UnmappedClassError(class_) >> > UnmappedClassError: Class 'doupy.model.objects.Country' is not mapped >> > >> > Any help is very much appreciated! >> > >> > Regards, >> > Alex >> > >> > > >> >> >> >> > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. 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