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Refactored m2m_through tests. Refs #18586
Refactored old tests that were rewritten 1:1 from doctests.
This commit is contained in:
Davide Ceretti
Loic Bistuer
parent
74e7f91e6d
commit
d8e157d5ab
1
AUTHORS
1
AUTHORS
@ -184,6 +184,7 @@ answer newbie questions, and generally made Django that much better:
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David Reynolds <david@reynoldsfamily.org.uk>
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David Schein
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David Tulig <david.tulig@gmail.com>
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Davide Ceretti <dav.ceretti@gmail.com>
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Deepak Thukral <deep.thukral@gmail.com>
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Denis Kuzmichyov <kuzmichyov@gmail.com>
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Derek Willis <http://blog.thescoop.org/>
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@ -17,265 +17,309 @@ class M2mThroughTests(TestCase):
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self.rock = Group.objects.create(name='Rock')
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self.roll = Group.objects.create(name='Roll')
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def test_m2m_through(self):
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# We start out by making sure that the Group 'rock' has no members.
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def test_retrieve_intermediate_items(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(person=self.jane, group=self.rock)
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expected = ['Jane', 'Jim']
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self.assertQuerysetEqual(
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self.rock.members.all(),
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[]
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expected,
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attrgetter("name")
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)
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# To make Jim a member of Group Rock, simply create a Membership object.
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Membership.objects.create(person=self.jim, group=self.rock)
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# We can do the same for Jane and Rock.
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def test_get_on_intermediate_model(self):
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Membership.objects.create(person=self.jane, group=self.rock)
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# Let's check to make sure that it worked. Jane and Jim should be members of Rock.
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self.assertQuerysetEqual(
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self.rock.members.all(), [
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'Jane',
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'Jim'
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],
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attrgetter("name")
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)
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# Now we can add a bunch more Membership objects to test with.
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Membership.objects.create(person=self.bob, group=self.roll)
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Membership.objects.create(person=self.jim, group=self.roll)
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Membership.objects.create(person=self.jane, group=self.roll)
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# We can get Jim's Group membership as with any ForeignKey.
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self.assertQuerysetEqual(
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self.jim.group_set.all(), [
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'Rock',
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'Roll'
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],
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attrgetter("name")
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)
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# Querying the intermediary model works like normal.
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queryset = Membership.objects.get(person=self.jane, group=self.rock)
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self.assertEqual(
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repr(Membership.objects.get(person=self.jane, group=self.rock)),
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repr(queryset),
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'<Membership: Jane is a member of Rock>'
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)
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# It's not only get that works. Filter works like normal as well.
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self.assertQuerysetEqual(
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Membership.objects.filter(person=self.jim), [
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def test_filter_on_intermediate_model(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(person=self.jane, group=self.rock)
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queryset = Membership.objects.filter(group=self.rock)
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expected = [
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'<Membership: Jim is a member of Rock>',
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'<Membership: Jim is a member of Roll>'
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'<Membership: Jane is a member of Rock>',
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]
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self.assertQuerysetEqual(
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queryset,
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expected
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)
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self.rock.members.clear()
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# Now there will be no members of Rock.
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def test_cannot_use_add_on_m2m_with_intermediary_model(self):
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msg = 'Cannot use add() on a ManyToManyField which specifies an intermediary model'
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with self.assertRaisesMessage(AttributeError, msg):
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self.rock.members.add(self.bob)
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self.assertQuerysetEqual(
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self.rock.members.all(),
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[]
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)
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def test_forward_descriptors(self):
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# Due to complications with adding via an intermediary model,
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# the add method raises an error.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot use add() on a ManyToManyField which specifies an intermediary model',
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lambda: self.rock.members.add(self.bob)
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)
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# Create is also disabled as it suffers from the same problems as add.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot use create() on a ManyToManyField which specifies an intermediary model',
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lambda: self.rock.members.create(name='Anne')
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)
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# Remove has similar complications, and it also raises an error.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot use remove() on a ManyToManyField which specifies an intermediary model',
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lambda: self.rock.members.remove(self.jim)
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)
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def test_cannot_use_create_on_m2m_with_intermediary_model(self):
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msg = 'Cannot use create() on a ManyToManyField which specifies an intermediary model'
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m1 = Membership.objects.create(person=self.jim, group=self.rock)
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m2 = Membership.objects.create(person=self.jane, group=self.rock)
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with self.assertRaisesMessage(AttributeError, msg):
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self.rock.members.create(name='Annie')
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# Here we back up the list of all members of Rock.
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backup = list(self.rock.members.all())
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# ...and we verify that it has worked.
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self.assertEqual(
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[p.name for p in backup],
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['Jane', 'Jim']
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)
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# The clear function should still work.
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self.rock.members.clear()
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# Now there will be no members of Rock.
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self.assertQuerysetEqual(
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self.rock.members.all(),
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[]
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)
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# Assignment should not work with models specifying a through model for
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# many of the same reasons as adding.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot set values on a ManyToManyField which specifies an intermediary model',
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setattr,
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self.rock,
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"members",
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backup
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)
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def test_cannot_use_remove_on_m2m_with_intermediary_model(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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msg = 'Cannot use remove() on a ManyToManyField which specifies an intermediary model'
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with self.assertRaisesMessage(AttributeError, msg):
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self.rock.members.remove(self.jim)
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# Let's re-save those instances that we've cleared.
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m1.save()
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m2.save()
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# Verifying that those instances were re-saved successfully.
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self.assertQuerysetEqual(
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self.rock.members.all(), [
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'Jane',
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'Jim'
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],
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self.rock.members.all(),
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['Jim', ],
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attrgetter("name")
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)
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def test_reverse_descriptors(self):
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# Due to complications with adding via an intermediary model,
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# the add method is not provided.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot use add() on a ManyToManyField which specifies an intermediary model',
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lambda: self.bob.group_set.add(self.rock)
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def test_cannot_use_setattr_on_m2m_with_intermediary_model(self):
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msg = 'Cannot set values on a ManyToManyField which specifies an intermediary model'
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members = list(Person.objects.filter(name__in=['Bob', 'Jim']))
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with self.assertRaisesMessage(AttributeError, msg):
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setattr(self.rock, 'members', members)
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self.assertQuerysetEqual(
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self.rock.members.all(),
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[]
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)
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# Create is also disabled as it suffers from the same problems as add.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot use create() on a ManyToManyField which specifies an intermediary model',
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lambda: self.bob.group_set.create(name="funk")
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def test_clear_removes_all_the_m2m_relationships(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(person=self.jane, group=self.rock)
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self.rock.members.clear()
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self.assertQuerysetEqual(
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self.rock.members.all(),
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[]
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)
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# Remove has similar complications, and is not provided either.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot use remove() on a ManyToManyField which specifies an intermediary model',
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lambda: self.jim.group_set.remove(self.rock)
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def test_retrieve_reverse_intermediate_items(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(person=self.jim, group=self.roll)
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expected = ['Rock', 'Roll']
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self.assertQuerysetEqual(
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self.jim.group_set.all(),
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expected,
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attrgetter("name")
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)
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m1 = Membership.objects.create(person=self.jim, group=self.rock)
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m2 = Membership.objects.create(person=self.jim, group=self.roll)
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def test_cannot_use_add_on_reverse_m2m_with_intermediary_model(self):
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msg = 'Cannot use add() on a ManyToManyField which specifies an intermediary model'
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# Here we back up the list of all of Jim's groups.
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backup = list(self.jim.group_set.all())
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self.assertEqual(
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[g.name for g in backup],
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['Rock', 'Roll']
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with self.assertRaisesMessage(AttributeError, msg):
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self.bob.group_set.add(self.bob)
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self.assertQuerysetEqual(
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self.bob.group_set.all(),
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[]
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)
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# The clear function should still work.
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def test_cannot_use_create_on_reverse_m2m_with_intermediary_model(self):
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msg = 'Cannot use create() on a ManyToManyField which specifies an intermediary model'
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with self.assertRaisesMessage(AttributeError, msg):
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self.bob.group_set.create(name='Funk')
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self.assertQuerysetEqual(
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self.bob.group_set.all(),
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[]
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)
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def test_cannot_use_remove_on_reverse_m2m_with_intermediary_model(self):
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Membership.objects.create(person=self.bob, group=self.rock)
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msg = 'Cannot use remove() on a ManyToManyField which specifies an intermediary model'
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with self.assertRaisesMessage(AttributeError, msg):
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self.bob.group_set.remove(self.rock)
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self.assertQuerysetEqual(
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self.bob.group_set.all(),
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['Rock', ],
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attrgetter('name')
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)
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def test_cannot_use_setattr_on_reverse_m2m_with_intermediary_model(self):
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msg = 'Cannot set values on a ManyToManyField which specifies an intermediary model'
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members = list(Group.objects.filter(name__in=['Rock', 'Roll']))
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with self.assertRaisesMessage(AttributeError, msg):
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setattr(self.bob, 'group_set', members)
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self.assertQuerysetEqual(
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self.bob.group_set.all(),
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[]
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)
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def test_clear_on_reverse_removes_all_the_m2m_relationships(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(person=self.jim, group=self.roll)
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self.jim.group_set.clear()
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# Now Jim will be in no groups.
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self.assertQuerysetEqual(
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self.jim.group_set.all(),
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[]
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)
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# Assignment should not work with models specifying a through model for
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# many of the same reasons as adding.
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self.assertRaisesMessage(
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AttributeError,
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'Cannot set values on a ManyToManyField which specifies an intermediary model',
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setattr,
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self.jim,
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"group_set",
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backup
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)
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# Let's re-save those instances that we've cleared.
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m1.save()
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m2.save()
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# Verifying that those instances were re-saved successfully.
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def test_query_model_by_attribute_name_of_related_model(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(person=self.jane, group=self.rock)
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Membership.objects.create(person=self.bob, group=self.roll)
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Membership.objects.create(person=self.jim, group=self.roll)
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Membership.objects.create(person=self.jane, group=self.roll)
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self.assertQuerysetEqual(
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self.jim.group_set.all(), [
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'Rock',
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'Roll'
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],
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Group.objects.filter(members__name='Bob'),
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['Roll', ],
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attrgetter("name")
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)
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def test_custom_tests(self):
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# Let's see if we can query through our second relationship.
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def test_query_first_model_by_intermediate_model_attribute(self):
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Membership.objects.create(
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person=self.jane, group=self.roll,
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invite_reason="She was just awesome."
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)
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Membership.objects.create(
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person=self.jim, group=self.roll,
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invite_reason="He is good."
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)
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Membership.objects.create(person=self.bob, group=self.roll)
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qs = Group.objects.filter(
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membership__invite_reason="She was just awesome."
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)
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self.assertQuerysetEqual(
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qs,
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['Roll'],
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attrgetter("name")
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)
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def test_query_second_model_by_intermediate_model_attribute(self):
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Membership.objects.create(
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person=self.jane, group=self.roll,
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invite_reason="She was just awesome."
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)
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Membership.objects.create(
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person=self.jim, group=self.roll,
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invite_reason="He is good."
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)
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Membership.objects.create(person=self.bob, group=self.roll)
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qs = Person.objects.filter(
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membership__invite_reason="She was just awesome."
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)
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self.assertQuerysetEqual(
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qs,
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['Jane'],
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attrgetter("name")
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)
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def test_query_model_by_related_model_name(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(person=self.jane, group=self.rock)
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Membership.objects.create(person=self.bob, group=self.roll)
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Membership.objects.create(person=self.jim, group=self.roll)
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Membership.objects.create(person=self.jane, group=self.roll)
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self.assertQuerysetEqual(
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Person.objects.filter(group__name="Rock"),
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['Jane', 'Jim'],
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attrgetter("name")
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)
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def test_query_model_by_custom_related_name(self):
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CustomMembership.objects.create(person=self.bob, group=self.rock)
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CustomMembership.objects.create(person=self.jim, group=self.rock)
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self.assertQuerysetEqual(
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Person.objects.filter(custom__name="Rock"),
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['Bob', 'Jim'],
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attrgetter("name")
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)
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def test_query_model_by_intermediate_can_return_non_unique_queryset(self):
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Membership.objects.create(person=self.jim, group=self.rock)
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Membership.objects.create(
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person=self.jane, group=self.rock,
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date_joined=datetime(2006, 1, 1)
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)
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Membership.objects.create(
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person=self.bob, group=self.roll,
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date_joined=datetime(2004, 1, 1))
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Membership.objects.create(person=self.jim, group=self.roll)
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Membership.objects.create(
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person=self.jane, group=self.roll,
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date_joined=datetime(2004, 1, 1))
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qs = Person.objects.filter(
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membership__date_joined__gt=datetime(2004, 1, 1)
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)
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self.assertQuerysetEqual(
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qs,
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['Jane', 'Jim', 'Jim'],
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attrgetter("name")
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)
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def test_custom_related_name_forward_empty_qs(self):
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self.assertQuerysetEqual(
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self.rock.custom_members.all(),
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[]
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)
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# We can query in the opposite direction as well.
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def test_custom_related_name_reverse_empty_qs(self):
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self.assertQuerysetEqual(
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self.bob.custom.all(),
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[]
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)
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def test_custom_related_name_forward_non_empty_qs(self):
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CustomMembership.objects.create(person=self.bob, group=self.rock)
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CustomMembership.objects.create(person=self.jim, group=self.rock)
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# If we get the number of people in Rock, it should be both Bob and Jim.
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self.assertQuerysetEqual(
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self.rock.custom_members.all(), [
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'Bob',
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'Jim'
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],
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attrgetter("name")
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)
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# Bob should only be in one custom group.
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self.assertQuerysetEqual(
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self.bob.custom.all(), [
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'Rock'
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],
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attrgetter("name")
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)
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# Let's make sure our new descriptors don't conflict with the FK related_name.
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self.assertQuerysetEqual(
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self.bob.custom_person_related_name.all(), [
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'<CustomMembership: Bob is a member of Rock>'
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]
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)
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def test_self_referential_tests(self):
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# Let's first create a person who has no friends.
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tony = PersonSelfRefM2M.objects.create(name="Tony")
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self.assertQuerysetEqual(
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tony.friends.all(),
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[]
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)
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chris = PersonSelfRefM2M.objects.create(name="Chris")
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Friendship.objects.create(first=tony, second=chris, date_friended=datetime.now())
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# Tony should now show that Chris is his friend.
|
||||
self.assertQuerysetEqual(
|
||||
tony.friends.all(), [
|
||||
'Chris'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
# But we haven't established that Chris is Tony's Friend.
|
||||
self.assertQuerysetEqual(
|
||||
chris.friends.all(),
|
||||
[]
|
||||
)
|
||||
Friendship.objects.create(first=chris, second=tony, date_friended=datetime.now())
|
||||
|
||||
# Having added Chris as a friend, let's make sure that his friend set reflects
|
||||
# that addition.
|
||||
self.assertQuerysetEqual(
|
||||
chris.friends.all(), [
|
||||
'Tony'
|
||||
],
|
||||
self.rock.custom_members.all(),
|
||||
['Bob', 'Jim'],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# Chris gets mad and wants to get rid of all of his friends.
|
||||
chris.friends.clear()
|
||||
# Now he should not have any more friends.
|
||||
def test_custom_related_name_reverse_non_empty_qs(self):
|
||||
CustomMembership.objects.create(person=self.bob, group=self.rock)
|
||||
CustomMembership.objects.create(person=self.jim, group=self.rock)
|
||||
|
||||
self.assertQuerysetEqual(
|
||||
chris.friends.all(),
|
||||
[]
|
||||
)
|
||||
# Since this isn't a symmetrical relation, Tony's friend link still exists.
|
||||
self.assertQuerysetEqual(
|
||||
tony.friends.all(), [
|
||||
'Chris'
|
||||
],
|
||||
self.bob.custom.all(),
|
||||
['Rock'],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
def test_custom_related_name_doesnt_conflict_with_fky_related_name(self):
|
||||
CustomMembership.objects.create(person=self.bob, group=self.rock)
|
||||
|
||||
self.assertQuerysetEqual(
|
||||
self.bob.custom_person_related_name.all(),
|
||||
['<CustomMembership: Bob is a member of Rock>']
|
||||
)
|
||||
|
||||
def test_through_fields(self):
|
||||
"""
|
||||
Tests that relations with intermediary tables with multiple FKs
|
||||
@ -284,128 +328,101 @@ class M2mThroughTests(TestCase):
|
||||
event = Event.objects.create(title='Rockwhale 2014')
|
||||
Invitation.objects.create(event=event, inviter=self.bob, invitee=self.jim)
|
||||
Invitation.objects.create(event=event, inviter=self.bob, invitee=self.jane)
|
||||
self.assertQuerysetEqual(event.invitees.all(), [
|
||||
'Jane',
|
||||
'Jim',
|
||||
], attrgetter('name'))
|
||||
self.assertQuerysetEqual(
|
||||
event.invitees.all(),
|
||||
['Jane', 'Jim'],
|
||||
attrgetter('name')
|
||||
)
|
||||
|
||||
|
||||
class M2mThroughReferentialTests(TestCase):
|
||||
def test_self_referential_empty_qs(self):
|
||||
tony = PersonSelfRefM2M.objects.create(name="Tony")
|
||||
self.assertQuerysetEqual(
|
||||
tony.friends.all(),
|
||||
[]
|
||||
)
|
||||
|
||||
def test_self_referential_non_symmentrical_first_side(self):
|
||||
tony = PersonSelfRefM2M.objects.create(name="Tony")
|
||||
chris = PersonSelfRefM2M.objects.create(name="Chris")
|
||||
Friendship.objects.create(
|
||||
first=tony, second=chris, date_friended=datetime.now()
|
||||
)
|
||||
|
||||
self.assertQuerysetEqual(
|
||||
tony.friends.all(),
|
||||
['Chris'],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
def test_self_referential_non_symmentrical_second_side(self):
|
||||
tony = PersonSelfRefM2M.objects.create(name="Tony")
|
||||
chris = PersonSelfRefM2M.objects.create(name="Chris")
|
||||
Friendship.objects.create(
|
||||
first=tony, second=chris, date_friended=datetime.now()
|
||||
)
|
||||
|
||||
self.assertQuerysetEqual(
|
||||
chris.friends.all(),
|
||||
[]
|
||||
)
|
||||
|
||||
def test_self_referential_non_symmentrical_clear_first_side(self):
|
||||
tony = PersonSelfRefM2M.objects.create(name="Tony")
|
||||
chris = PersonSelfRefM2M.objects.create(name="Chris")
|
||||
Friendship.objects.create(
|
||||
first=tony, second=chris, date_friended=datetime.now()
|
||||
)
|
||||
|
||||
chris.friends.clear()
|
||||
|
||||
self.assertQuerysetEqual(
|
||||
chris.friends.all(),
|
||||
[]
|
||||
)
|
||||
|
||||
# Since this isn't a symmetrical relation, Tony's friend link still exists.
|
||||
self.assertQuerysetEqual(
|
||||
tony.friends.all(),
|
||||
['Chris'],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
def test_self_referential_symmentrical(self):
|
||||
tony = PersonSelfRefM2M.objects.create(name="Tony")
|
||||
chris = PersonSelfRefM2M.objects.create(name="Chris")
|
||||
Friendship.objects.create(
|
||||
first=tony, second=chris, date_friended=datetime.now()
|
||||
)
|
||||
Friendship.objects.create(
|
||||
first=chris, second=tony, date_friended=datetime.now()
|
||||
)
|
||||
|
||||
self.assertQuerysetEqual(
|
||||
tony.friends.all(),
|
||||
['Chris'],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
self.assertQuerysetEqual(
|
||||
chris.friends.all(),
|
||||
['Tony'],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
def test_through_fields_self_referential(self):
|
||||
john = Employee.objects.create(name='john')
|
||||
peter = Employee.objects.create(name='peter')
|
||||
mary = Employee.objects.create(name='mary')
|
||||
harry = Employee.objects.create(name='harry')
|
||||
|
||||
Relationship.objects.create(source=john, target=peter, another=None)
|
||||
Relationship.objects.create(source=john, target=mary, another=None)
|
||||
Relationship.objects.create(source=john, target=harry, another=peter)
|
||||
self.assertQuerysetEqual(john.subordinates.all(), [
|
||||
'peter',
|
||||
'mary',
|
||||
'harry',
|
||||
], attrgetter('name'))
|
||||
|
||||
def test_query_tests(self):
|
||||
Membership.objects.create(person=self.jim, group=self.rock)
|
||||
m2 = Membership.objects.create(person=self.jane, group=self.rock)
|
||||
m3 = Membership.objects.create(person=self.bob, group=self.roll)
|
||||
Membership.objects.create(person=self.jim, group=self.roll)
|
||||
m5 = Membership.objects.create(person=self.jane, group=self.roll)
|
||||
|
||||
m2.invite_reason = "She was just awesome."
|
||||
m2.date_joined = datetime(2006, 1, 1)
|
||||
m2.save()
|
||||
m3.date_joined = datetime(2004, 1, 1)
|
||||
m3.save()
|
||||
m5.date_joined = datetime(2004, 1, 1)
|
||||
m5.save()
|
||||
|
||||
# We can query for the related model by using its attribute name (members, in
|
||||
# this case).
|
||||
self.assertQuerysetEqual(
|
||||
Group.objects.filter(members__name='Bob'), [
|
||||
'Roll'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# To query through the intermediary model, we specify its model name.
|
||||
# In this case, membership.
|
||||
self.assertQuerysetEqual(
|
||||
Group.objects.filter(membership__invite_reason="She was just awesome."), [
|
||||
'Rock'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# If we want to query in the reverse direction by the related model, use its
|
||||
# model name (group, in this case).
|
||||
self.assertQuerysetEqual(
|
||||
Person.objects.filter(group__name="Rock"), [
|
||||
'Jane',
|
||||
'Jim'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
CustomMembership.objects.create(person=self.bob, group=self.rock)
|
||||
CustomMembership.objects.create(person=self.jim, group=self.rock)
|
||||
# If the m2m field has specified a related_name, using that will work.
|
||||
self.assertQuerysetEqual(
|
||||
Person.objects.filter(custom__name="Rock"), [
|
||||
'Bob',
|
||||
'Jim'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# To query through the intermediary model in the reverse direction, we again
|
||||
# specify its model name (membership, in this case).
|
||||
self.assertQuerysetEqual(
|
||||
Person.objects.filter(membership__invite_reason="She was just awesome."), [
|
||||
'Jane'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# Let's see all of the groups that Jane joined after 1 Jan 2005:
|
||||
self.assertQuerysetEqual(
|
||||
Group.objects.filter(membership__date_joined__gt=datetime(2005, 1, 1), membership__person=self.jane), [
|
||||
'Rock'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# Queries also work in the reverse direction: Now let's see all of the people
|
||||
# that have joined Rock since 1 Jan 2005:
|
||||
self.assertQuerysetEqual(
|
||||
Person.objects.filter(membership__date_joined__gt=datetime(2005, 1, 1), membership__group=self.rock), [
|
||||
'Jane',
|
||||
'Jim'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# Conceivably, queries through membership could return correct, but non-unique
|
||||
# querysets. To demonstrate this, we query for all people who have joined a
|
||||
# group after 2004:
|
||||
self.assertQuerysetEqual(
|
||||
Person.objects.filter(membership__date_joined__gt=datetime(2004, 1, 1)), [
|
||||
'Jane',
|
||||
'Jim',
|
||||
'Jim'
|
||||
],
|
||||
attrgetter("name")
|
||||
)
|
||||
|
||||
# Jim showed up twice, because he joined two groups ('Rock', and 'Roll'):
|
||||
self.assertEqual(
|
||||
[(m.person.name, m.group.name) for m in Membership.objects.filter(date_joined__gt=datetime(2004, 1, 1))],
|
||||
[('Jane', 'Rock'), ('Jim', 'Rock'), ('Jim', 'Roll')]
|
||||
)
|
||||
# QuerySet's distinct() method can correct this problem.
|
||||
self.assertQuerysetEqual(
|
||||
Person.objects.filter(membership__date_joined__gt=datetime(2004, 1, 1)).distinct(), [
|
||||
'Jane',
|
||||
'Jim'
|
||||
],
|
||||
attrgetter("name")
|
||||
john.subordinates.all(),
|
||||
['peter', 'mary', 'harry'],
|
||||
attrgetter('name')
|
||||
)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user