mirror of
https://github.com/django/django.git
synced 2024-12-23 17:46:27 +00:00
289 lines
11 KiB
Python
289 lines
11 KiB
Python
from django.db import models
|
|
from django.template import Context, Template
|
|
from django.test import SimpleTestCase, TestCase, override_settings
|
|
from django.test.utils import isolate_apps
|
|
|
|
from .models import (
|
|
AbstractBase1, AbstractBase2, AbstractBase3, Child1, Child2, Child3,
|
|
Child4, Child5, Child6, Child7, RelatedModel, RelationModel,
|
|
)
|
|
|
|
|
|
class ManagersRegressionTests(TestCase):
|
|
def test_managers(self):
|
|
a1 = Child1.objects.create(name='fred', data='a1')
|
|
a2 = Child1.objects.create(name='barney', data='a2')
|
|
b1 = Child2.objects.create(name='fred', data='b1', value=1)
|
|
b2 = Child2.objects.create(name='barney', data='b2', value=42)
|
|
c1 = Child3.objects.create(name='fred', data='c1', comment='yes')
|
|
c2 = Child3.objects.create(name='barney', data='c2', comment='no')
|
|
d1 = Child4.objects.create(name='fred', data='d1')
|
|
d2 = Child4.objects.create(name='barney', data='d2')
|
|
fred1 = Child5.objects.create(name='fred', comment='yes')
|
|
Child5.objects.create(name='barney', comment='no')
|
|
f1 = Child6.objects.create(name='fred', data='f1', value=42)
|
|
f2 = Child6.objects.create(name='barney', data='f2', value=42)
|
|
fred2 = Child7.objects.create(name='fred')
|
|
barney = Child7.objects.create(name='barney')
|
|
|
|
self.assertSequenceEqual(Child1.manager1.all(), [a1])
|
|
self.assertSequenceEqual(Child1.manager2.all(), [a2])
|
|
self.assertSequenceEqual(Child1._default_manager.all(), [a1])
|
|
|
|
self.assertSequenceEqual(Child2._default_manager.all(), [b1])
|
|
self.assertSequenceEqual(Child2.restricted.all(), [b2])
|
|
|
|
self.assertSequenceEqual(Child3._default_manager.all(), [c1])
|
|
self.assertSequenceEqual(Child3.manager1.all(), [c1])
|
|
self.assertSequenceEqual(Child3.manager2.all(), [c2])
|
|
|
|
# Since Child6 inherits from Child4, the corresponding rows from f1 and
|
|
# f2 also appear here. This is the expected result.
|
|
self.assertSequenceEqual(
|
|
Child4._default_manager.order_by('data'),
|
|
[d1, d2, f1.child4_ptr, f2.child4_ptr],
|
|
)
|
|
self.assertCountEqual(Child4.manager1.all(), [d1, f1.child4_ptr])
|
|
self.assertCountEqual(Child5._default_manager.all(), [fred1])
|
|
self.assertCountEqual(Child6._default_manager.all(), [f1, f2])
|
|
self.assertSequenceEqual(
|
|
Child7._default_manager.order_by('name'),
|
|
[barney, fred2],
|
|
)
|
|
|
|
def test_abstract_manager(self):
|
|
# Accessing the manager on an abstract model should
|
|
# raise an attribute error with an appropriate message.
|
|
# This error message isn't ideal, but if the model is abstract and
|
|
# a lot of the class instantiation logic isn't invoked; if the
|
|
# manager is implied, then we don't get a hook to install the
|
|
# error-raising manager.
|
|
msg = "type object 'AbstractBase3' has no attribute 'objects'"
|
|
with self.assertRaisesMessage(AttributeError, msg):
|
|
AbstractBase3.objects.all()
|
|
|
|
def test_custom_abstract_manager(self):
|
|
# Accessing the manager on an abstract model with a custom
|
|
# manager should raise an attribute error with an appropriate
|
|
# message.
|
|
msg = "Manager isn't available; AbstractBase2 is abstract"
|
|
with self.assertRaisesMessage(AttributeError, msg):
|
|
AbstractBase2.restricted.all()
|
|
|
|
def test_explicit_abstract_manager(self):
|
|
# Accessing the manager on an abstract model with an explicit
|
|
# manager should raise an attribute error with an appropriate
|
|
# message.
|
|
msg = "Manager isn't available; AbstractBase1 is abstract"
|
|
with self.assertRaisesMessage(AttributeError, msg):
|
|
AbstractBase1.objects.all()
|
|
|
|
@override_settings(TEST_SWAPPABLE_MODEL='managers_regress.Parent')
|
|
@isolate_apps('managers_regress')
|
|
def test_swappable_manager(self):
|
|
class SwappableModel(models.Model):
|
|
class Meta:
|
|
swappable = 'TEST_SWAPPABLE_MODEL'
|
|
|
|
# Accessing the manager on a swappable model should
|
|
# raise an attribute error with a helpful message
|
|
msg = (
|
|
"Manager isn't available; 'managers_regress.SwappableModel' "
|
|
"has been swapped for 'managers_regress.Parent'"
|
|
)
|
|
with self.assertRaisesMessage(AttributeError, msg):
|
|
SwappableModel.objects.all()
|
|
|
|
@override_settings(TEST_SWAPPABLE_MODEL='managers_regress.Parent')
|
|
@isolate_apps('managers_regress')
|
|
def test_custom_swappable_manager(self):
|
|
class SwappableModel(models.Model):
|
|
stuff = models.Manager()
|
|
|
|
class Meta:
|
|
swappable = 'TEST_SWAPPABLE_MODEL'
|
|
|
|
# Accessing the manager on a swappable model with an
|
|
# explicit manager should raise an attribute error with a
|
|
# helpful message
|
|
msg = (
|
|
"Manager isn't available; 'managers_regress.SwappableModel' "
|
|
"has been swapped for 'managers_regress.Parent'"
|
|
)
|
|
with self.assertRaisesMessage(AttributeError, msg):
|
|
SwappableModel.stuff.all()
|
|
|
|
@override_settings(TEST_SWAPPABLE_MODEL='managers_regress.Parent')
|
|
@isolate_apps('managers_regress')
|
|
def test_explicit_swappable_manager(self):
|
|
class SwappableModel(models.Model):
|
|
objects = models.Manager()
|
|
|
|
class Meta:
|
|
swappable = 'TEST_SWAPPABLE_MODEL'
|
|
|
|
# Accessing the manager on a swappable model with an
|
|
# explicit manager should raise an attribute error with a
|
|
# helpful message
|
|
msg = (
|
|
"Manager isn't available; 'managers_regress.SwappableModel' "
|
|
"has been swapped for 'managers_regress.Parent'"
|
|
)
|
|
with self.assertRaisesMessage(AttributeError, msg):
|
|
SwappableModel.objects.all()
|
|
|
|
def test_regress_3871(self):
|
|
related = RelatedModel.objects.create()
|
|
|
|
relation = RelationModel()
|
|
relation.fk = related
|
|
relation.gfk = related
|
|
relation.save()
|
|
relation.m2m.add(related)
|
|
|
|
t = Template('{{ related.test_fk.all.0 }}{{ related.test_gfk.all.0 }}{{ related.test_m2m.all.0 }}')
|
|
|
|
self.assertEqual(
|
|
t.render(Context({'related': related})),
|
|
''.join([str(relation.pk)] * 3),
|
|
)
|
|
|
|
def test_field_can_be_called_exact(self):
|
|
# Make sure related managers core filters don't include an
|
|
# explicit `__exact` lookup that could be interpreted as a
|
|
# reference to a foreign `exact` field. refs #23940.
|
|
related = RelatedModel.objects.create(exact=False)
|
|
relation = related.test_fk.create()
|
|
self.assertEqual(related.test_fk.get(), relation)
|
|
|
|
|
|
@isolate_apps('managers_regress')
|
|
class TestManagerInheritance(SimpleTestCase):
|
|
def test_implicit_inheritance(self):
|
|
class CustomManager(models.Manager):
|
|
pass
|
|
|
|
class AbstractModel(models.Model):
|
|
custom_manager = CustomManager()
|
|
|
|
class Meta:
|
|
abstract = True
|
|
|
|
class PlainModel(models.Model):
|
|
custom_manager = CustomManager()
|
|
|
|
self.assertIsInstance(PlainModel._base_manager, models.Manager)
|
|
self.assertIsInstance(PlainModel._default_manager, CustomManager)
|
|
|
|
class ModelWithAbstractParent(AbstractModel):
|
|
pass
|
|
|
|
self.assertIsInstance(ModelWithAbstractParent._base_manager, models.Manager)
|
|
self.assertIsInstance(ModelWithAbstractParent._default_manager, CustomManager)
|
|
|
|
class ProxyModel(PlainModel):
|
|
class Meta:
|
|
proxy = True
|
|
|
|
self.assertIsInstance(ProxyModel._base_manager, models.Manager)
|
|
self.assertIsInstance(ProxyModel._default_manager, CustomManager)
|
|
|
|
class MTIModel(PlainModel):
|
|
pass
|
|
|
|
self.assertIsInstance(MTIModel._base_manager, models.Manager)
|
|
self.assertIsInstance(MTIModel._default_manager, CustomManager)
|
|
|
|
def test_default_manager_inheritance(self):
|
|
class CustomManager(models.Manager):
|
|
pass
|
|
|
|
class AbstractModel(models.Model):
|
|
another_manager = models.Manager()
|
|
custom_manager = CustomManager()
|
|
|
|
class Meta:
|
|
default_manager_name = 'custom_manager'
|
|
abstract = True
|
|
|
|
class PlainModel(models.Model):
|
|
another_manager = models.Manager()
|
|
custom_manager = CustomManager()
|
|
|
|
class Meta:
|
|
default_manager_name = 'custom_manager'
|
|
|
|
self.assertIsInstance(PlainModel._default_manager, CustomManager)
|
|
|
|
class ModelWithAbstractParent(AbstractModel):
|
|
pass
|
|
|
|
self.assertIsInstance(ModelWithAbstractParent._default_manager, CustomManager)
|
|
|
|
class ProxyModel(PlainModel):
|
|
class Meta:
|
|
proxy = True
|
|
|
|
self.assertIsInstance(ProxyModel._default_manager, CustomManager)
|
|
|
|
class MTIModel(PlainModel):
|
|
pass
|
|
|
|
self.assertIsInstance(MTIModel._default_manager, CustomManager)
|
|
|
|
def test_base_manager_inheritance(self):
|
|
class CustomManager(models.Manager):
|
|
pass
|
|
|
|
class AbstractModel(models.Model):
|
|
another_manager = models.Manager()
|
|
custom_manager = CustomManager()
|
|
|
|
class Meta:
|
|
base_manager_name = 'custom_manager'
|
|
abstract = True
|
|
|
|
class PlainModel(models.Model):
|
|
another_manager = models.Manager()
|
|
custom_manager = CustomManager()
|
|
|
|
class Meta:
|
|
base_manager_name = 'custom_manager'
|
|
|
|
self.assertIsInstance(PlainModel._base_manager, CustomManager)
|
|
|
|
class ModelWithAbstractParent(AbstractModel):
|
|
pass
|
|
|
|
self.assertIsInstance(ModelWithAbstractParent._base_manager, CustomManager)
|
|
|
|
class ProxyModel(PlainModel):
|
|
class Meta:
|
|
proxy = True
|
|
|
|
self.assertIsInstance(ProxyModel._base_manager, CustomManager)
|
|
|
|
class MTIModel(PlainModel):
|
|
pass
|
|
|
|
self.assertIsInstance(MTIModel._base_manager, CustomManager)
|
|
|
|
def test_manager_no_duplicates(self):
|
|
class CustomManager(models.Manager):
|
|
pass
|
|
|
|
class AbstractModel(models.Model):
|
|
custom_manager = models.Manager()
|
|
|
|
class Meta:
|
|
abstract = True
|
|
|
|
class TestModel(AbstractModel):
|
|
custom_manager = CustomManager()
|
|
|
|
self.assertEqual(TestModel._meta.managers, (TestModel.custom_manager,))
|
|
self.assertEqual(TestModel._meta.managers_map, {'custom_manager': TestModel.custom_manager})
|
|
|
|
def test_manager_class_getitem(self):
|
|
self.assertIs(models.Manager[Child1], models.Manager)
|