Я добавил таблицу в базу данных, используя sqlalchemy и sqlalchemy-migrate, и когда я запускаю модульные тесты для несвязанного кода, который попадает в базу данных, я получаю следующую ошибку:
Traceback (most recent call last):
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/nose/suite.py", line 208, in run
self.setUp()
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/nose/suite.py", line 291, in setUp
self.setupContext(ancestor)
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/nose/suite.py", line 314, in setupContext
try_run(context, names)
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/nose/util.py", line 478, in try_run
return func()
File "/Users/lorin/nova/metadata-debugging/nova/tests/__init__.py", line 62, in setup
FLAGS.vpn_start,
File "/Users/lorin/nova/metadata-debugging/nova/network/manager.py", line 577, in create_networks
network_ref = db.network_get_by_cidr(context, cidr)
File "/Users/lorin/nova/metadata-debugging/nova/db/api.py", line 628, in network_get_by_cidr
return IMPL.network_get_by_cidr(context, cidr)
File "/Users/lorin/nova/metadata-debugging/nova/db/sqlalchemy/api.py", line 99, in wrapper
return f(*args, **kwargs)
File "/Users/lorin/nova/metadata-debugging/nova/db/sqlalchemy/api.py", line 1308, in network_get_by_cidr
result = session.query(models.Network).\
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/session.py", line 873, in query
return self._query_cls(entities, self, **kwargs)
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/query.py", line 92, in __init__
self._set_entities(entities)
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/query.py", line 101, in _set_entities
self._setup_aliasizers(self._entities)
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/query.py", line 116, in _setup_aliasizers
_entity_info(entity)
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/util.py", line 536, in _entity_info
mapper = mapper.compile()
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/mapper.py", line 805, in compile
mapper._post_configure_properties()
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/mapper.py", line 834, in _post_configure_properties
prop.init()
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/interfaces.py", line 493, in init
self.do_init()
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/properties.py", line 839, in do_init
self._process_dependent_arguments()
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/properties.py", line 883, in _process_dependent_arguments
setattr(self, attr, getattr(self, attr)())
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/ext/declarative.py", line 1078, in return_cls
x = eval(arg, globals(), d)
File "<string>", line 1, in <module>
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/util.py", line 76, in __missing__
self[key] = val = self.creator(key)
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/ext/declarative.py", line 1070, in access_cls
elif key in cls.metadata.tables:
File "/Users/lorin/nova/instance_type_metadata/.nova-venv/lib/python2.6/site-packages/sqlalchemy/orm/attributes.py", line 138, in __getattr__
key)
AttributeError: Neither 'InstrumentedAttribute' object nor 'Comparator' object has an attribute 'tables'
Что можетЯ сделал, чтобы вызвать ошибку в моих моделях sqlalchemy, чтобы вызвать эту ошибку?Код находится на Launchpad по адресу lp: ~ usc-isi / nova / instance_type_metadata , ревизии 1109-1115 содержат мои изменения.
Я добавил одну модель в nova / db / sqlalchemy / models.py :
class InstanceTypeMetadata(BASE, NovaBase):
"""Represents a metadata key/value pair for an instance_type"""
__tablename__ = 'instance_type_metadata'
id = Column(Integer, primary_key=True)
key = Column(String(255))
value = Column(String(255))
instance_type_id = Column(Integer, ForeignKey('instance_types.id'),
nullable=False)
instance_type = relationship(InstanceTypes, backref="metadata",
foreign_keys=instance_type_id,
primaryjoin='and_('
'InstanceTypeMetadata.instance_type_id == InstanceTypes.id,'
'InstanceTypeMetadata.deleted == False)')
И добавил файл nova / db / sqlalchemy /migrate_repo / версия / 019_add_instance_type_metadata.py