def test_sets(self):
# Py2K
import sets
# end Py2K
class SetLike(object):
def add(self):
pass
class ForcedSet(list):
__emulates__ = set
for type_ in (
set,
# Py2K
sets.Set,
# end Py2K
SetLike,
ForcedSet):
eq_(util.duck_type_collection(type_), set)
instance = type_()
eq_(util.duck_type_collection(instance), set)
for type_ in (
frozenset,
# Py2K
sets.ImmutableSet
# end Py2K
):
is_(util.duck_type_collection(type_), None)
instance = type_()
is_(util.duck_type_collection(instance), None)
def test_sets(self):
# Py2K
import sets
# end Py2K
class SetLike(object):
def add(self):
pass
class ForcedSet(list):
__emulates__ = set
for type_ in (set,
# Py2K
sets.Set,
# end Py2K
SetLike,
ForcedSet):
eq_(util.duck_type_collection(type_), set)
instance = type_()
eq_(util.duck_type_collection(instance), set)
for type_ in (frozenset,
# Py2K
sets.ImmutableSet
# end Py2K
):
is_(util.duck_type_collection(type_), None)
instance = type_()
is_(util.duck_type_collection(instance), None)
def test_cyclical(self):
"""A circular eager relationship breaks the cycle with a lazy loader"""
mapper(Address, addresses)
mapper(User, users, properties = dict(
addresses = relationship(Address, lazy='subquery',
backref=sa.orm.backref('user', lazy='subquery'),
order_by=Address.id)
))
is_(sa.orm.class_mapper(User).get_property('addresses').lazy, 'subquery')
is_(sa.orm.class_mapper(Address).get_property('user').lazy, 'subquery')
sess = create_session()
eq_(self.static.user_address_result, sess.query(User).order_by(User.id).all())
def go():
a = q.filter(addresses.c.id == 1).one()
is_not_(a.user, None)
u1 = sess.query(User).get(7)
is_(a.user, u1)
def go():
a = q.filter(addresses.c.id==1).one()
is_not_(a.user, None)
u1 = sess.query(User).get(7)
is_(a.user, u1)
