Hello!
I have a similar error with SA 4.1.0 and turbogears.
session.query(Extrato).filter_by(bank='IF5',
data=datetime.datetime.strptime('2007/07/27','%Y/%m/%d'))
File "/usr/lib/python2.5/site-packages/SQLAlchemy-0.4.1-py2.5.egg/
sqlalchemy/orm/session.py", line 654, in query
q = self._query_cls(_class_mapper(mapper_or_class,
entity_name=entity_name), self, **kwargs)
File "/usr/lib/python2.5/site-packages/SQLAlchemy-0.4.1-py2.5.egg/
sqlalchemy/orm/mapper.py", line 1649, in class_mapper
raise exceptions.InvalidRequestError("Class '%s' entity name '%s'
has no mapper associated with it" % (class_.__name__, entity_name))
InvalidRequestError: Class 'Extrato' entity name 'None' has no mapper
associated with it
But if I run the query outside the turbogears framework, it works
fine, no errors!
My model definition is:
from sqlalchemy import Table, Column, String, Integer, DateTime,
MetaData, create_engine
from sqlalchemy.orm import relation, mapper, create_session
mssql = create_engine('mssql://paulino:[EMAIL PROTECTED]/db')
metadata = MetaData()
metadata.bind = mssql
session = create_session(bind=mssql)
extratoTab = Table('ttfcmf201100', metadata,
Column('t_bank', String(), primary_key=True),
Column('t_nseq', Integer(), primary_key=True,
autoincrement=False),
Column('t_dtmv', DateTime(), primary_key=True),
Column('t_dtvl', DateTime(), primary_key=True),
autoload=True)
class Extrato(object):
pass
mapper(Extrato, extratoTab)
what is going on?
thank you
Paulino
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