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Merge pull request #118 from theatlantic/_default_manager-instance-fix 

Set _default_manager directly on model_cls; don't use add_to_class()
fix_request_path_info
Diederik van der Boor 2015-04-08 13:06:12 +02:00
parent 7edafcfab8 a3d9379876
commit d16d989e91
2 changed files with 28 additions and 3 deletions
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8
polymorphic/base.py
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@ -77,15 +77,17 @@ class PolymorphicModelBase(ModelBase):
for source_name, mgr_name, manager in inherited_managers:
#print '** add inherited manager from model %s, manager %s, %s' % (source_name, mgr_name, manager.__class__.__name__)
new_manager = manager._copy_to_model(new_class)
new_class.add_to_class(mgr_name, new_manager)
if mgr_name == '_default_manager':
new_class._default_manager = new_manager
else:
new_class.add_to_class(mgr_name, new_manager)
# get first user defined manager; if there is one, make it the _default_manager
# this value is used by the related objects, restoring access to custom queryset methods on related objects.
user_manager = self.get_first_user_defined_manager(new_class)
if user_manager:
def_mgr = user_manager._copy_to_model(new_class)
#print '## add default manager', type(def_mgr)
new_class.add_to_class('_default_manager', def_mgr)
new_class._default_manager = user_manager._copy_to_model(new_class)
new_class._default_manager._inherited = False # the default mgr was defined by the user, not inherited
# validate resulting default manager

23
polymorphic/tests.py
View File

@ -506,6 +506,29 @@ class PolymorphicTests(TestCase):
self.assertEqual(show_base_manager(One2OneRelatingModelDerived), "<class 'django.db.models.manager.Manager'> <class 'polymorphic.tests.One2OneRelatingModelDerived'>")
def test_instance_default_manager(self):
def show_default_manager(instance):
return "{0} {1}".format(
repr(type(instance._default_manager)),
repr(instance._default_manager.model)
)
plain_a = PlainA(field1='C1')
plain_b = PlainB(field2='C1')
plain_c = PlainC(field3='C1')
model_2a = Model2A(field1='C1')
model_2b = Model2B(field2='C1')
model_2c = Model2C(field3='C1')
self.assertEqual(show_default_manager(plain_a), "<class 'django.db.models.manager.Manager'> <class 'polymorphic.tests.PlainA'>")
self.assertEqual(show_default_manager(plain_b), "<class 'django.db.models.manager.Manager'> <class 'polymorphic.tests.PlainB'>")
self.assertEqual(show_default_manager(plain_c), "<class 'django.db.models.manager.Manager'> <class 'polymorphic.tests.PlainC'>")
self.assertEqual(show_default_manager(model_2a), "<class 'polymorphic.manager.PolymorphicManager'> <class 'polymorphic.tests.Model2A'>")
self.assertEqual(show_default_manager(model_2b), "<class 'polymorphic.manager.PolymorphicManager'> <class 'polymorphic.tests.Model2B'>")
self.assertEqual(show_default_manager(model_2c), "<class 'polymorphic.manager.PolymorphicManager'> <class 'polymorphic.tests.Model2C'>")
def test_foreignkey_field(self):
self.create_model2abcd()