Make use o issubclass instead of isinstance (fix issue #645)

Because __mro__ is a list of classes and not instances.
DictWithMetadata.__getstate__ was never called

Signed-off-by: Fernando Rocha <fernandogrd@gmail.com>
This commit is contained in:
Fernando Rocha 2013-02-11 19:18:22 -03:00
parent 41364b3be0
commit ea004b5e7a
2 changed files with 8 additions and 1 deletions

View File

@ -31,7 +31,7 @@ class DictWithMetadata(dict):
"""
# return an instance of the first dict in MRO that isn't a DictWithMetadata
for base in self.__class__.__mro__:
if not isinstance(base, DictWithMetadata) and isinstance(base, dict):
if not issubclass(base, DictWithMetadata) and issubclass(base, dict):
return base(self)

View File

@ -870,6 +870,13 @@ class SerializerPickleTests(TestCase):
fields = ('name', 'age')
pickle.dumps(InnerPersonSerializer(Person(name="Noah", age=950)).data)
def test_getstate_method_should_not_return_none(self):
'''Regression test for
https://github.com/tomchristie/django-rest-framework/issues/645
'''
d = serializers.DictWithMetadata({1:1})
self.assertEqual(d.__getstate__(), serializers.SortedDict({1:1}))
class DepthTest(TestCase):
def test_implicit_nesting(self):