Hi,
I have the following code:
# tables
datlli_table = Table('DATLLI', meta, autoload = True )
hstlli_table = Table('HSTLLI', meta, autoload = True )
# classes
class Llicencia(object): pass
# mapers
datlli_mapper = mapper(Llicencia, datlli_table,
primary_key=[datlli_table.c.dni], entity_name='vigent')
hstlli_mapper = mapper(Llicencia, hstlli_table,
primary_key=[hstlli_table.c.dni], entity_name='historic')
I'm trying to do a session.refresh(llicencia) and I get an error
because the entity_name is None, but the refresh() function not accept
the entity_name as an argument.
session.refresh(llicencia)
File "/usr/lib/python2.4/site-packages/sqlalchemy/orm/session.py",
line 362, in refresh
if self.query(obj.__class__)._get(obj._instance_key, reload=True)
is None:
File "/usr/lib/python2.4/site-packages/sqlalchemy/orm/session.py",
line 295, in query
q = query.Query(_class_mapper(mapper_or_class,
entity_name=entity_name), self, **kwargs)
File "/usr/lib/python2.4/site-packages/sqlalchemy/orm/mapper.py",
line 1875, in class_mapper
raise exceptions.InvalidRequestError("Class '%s' entity name '%s'
has no mapper associated with it" % (class_.__name__, entity_name))
sqlalchemy.exceptions.InvalidRequestError: Class 'Llicencia' entity
name 'None' has no mapper associated with it
There is some other alternative way to do it?
Thanks.
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