mirror of
https://github.com/django/django.git
synced 2025-10-31 01:25:32 +00:00
6eafd412fc
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13400 bcc190cf-cafb-0310-a4f2-bffc1f526a37
129 lines
5.0 KiB
Python
129 lines
5.0 KiB
Python
try:
|
|
from cStringIO import StringIO
|
|
except ImportError:
|
|
from StringIO import StringIO
|
|
|
|
from django.core import management
|
|
from django.contrib.auth.models import User
|
|
from django.test import TestCase
|
|
|
|
from models import Person, Group, Membership, UserMembership
|
|
|
|
|
|
class M2MThroughTestCase(TestCase):
|
|
def test_everything(self):
|
|
bob = Person.objects.create(name="Bob")
|
|
jim = Person.objects.create(name="Jim")
|
|
|
|
rock = Group.objects.create(name="Rock")
|
|
roll = Group.objects.create(name="Roll")
|
|
|
|
frank = User.objects.create_user("frank", "frank@example.com", "password")
|
|
jane = User.objects.create_user("jane", "jane@example.com", "password")
|
|
|
|
Membership.objects.create(person=bob, group=rock)
|
|
Membership.objects.create(person=bob, group=roll)
|
|
Membership.objects.create(person=jim, group=rock)
|
|
|
|
self.assertQuerysetEqual(
|
|
bob.group_set.all(), [
|
|
"<Group: Rock>",
|
|
"<Group: Roll>",
|
|
]
|
|
)
|
|
|
|
self.assertQuerysetEqual(
|
|
roll.members.all(), [
|
|
"<Person: Bob>",
|
|
]
|
|
)
|
|
|
|
self.assertRaises(AttributeError, setattr, bob, "group_set", [])
|
|
self.assertRaises(AttributeError, setattr, roll, "members", [])
|
|
|
|
self.assertRaises(AttributeError, rock.members.create, name="Anne")
|
|
self.assertRaises(AttributeError, bob.group_set.create, name="Funk")
|
|
|
|
UserMembership.objects.create(user=frank, group=rock)
|
|
UserMembership.objects.create(user=frank, group=roll)
|
|
UserMembership.objects.create(user=jane, group=rock)
|
|
|
|
self.assertQuerysetEqual(
|
|
frank.group_set.all(), [
|
|
"<Group: Rock>",
|
|
"<Group: Roll>",
|
|
]
|
|
)
|
|
|
|
self.assertQuerysetEqual(
|
|
roll.user_members.all(), [
|
|
"<User: frank>",
|
|
]
|
|
)
|
|
|
|
def test_serialization(self):
|
|
"m2m-through models aren't serialized as m2m fields. Refs #8134"
|
|
|
|
p = Person.objects.create(name="Bob")
|
|
g = Group.objects.create(name="Roll")
|
|
m =Membership.objects.create(person=p, group=g)
|
|
|
|
pks = {"p_pk": p.pk, "g_pk": g.pk, "m_pk": m.pk}
|
|
|
|
out = StringIO()
|
|
management.call_command("dumpdata", "m2m_through_regress", format="json", stdout=out)
|
|
self.assertEqual(out.getvalue().strip(), """[{"pk": %(m_pk)s, "model": "m2m_through_regress.membership", "fields": {"person": %(p_pk)s, "price": 100, "group": %(g_pk)s}}, {"pk": %(p_pk)s, "model": "m2m_through_regress.person", "fields": {"name": "Bob"}}, {"pk": %(g_pk)s, "model": "m2m_through_regress.group", "fields": {"name": "Roll"}}]""" % pks)
|
|
|
|
out = StringIO()
|
|
management.call_command("dumpdata", "m2m_through_regress", format="xml",
|
|
indent=2, stdout=out)
|
|
self.assertEqual(out.getvalue().strip(), """
|
|
<?xml version="1.0" encoding="utf-8"?>
|
|
<django-objects version="1.0">
|
|
<object pk="%(m_pk)s" model="m2m_through_regress.membership">
|
|
<field to="m2m_through_regress.person" name="person" rel="ManyToOneRel">%(p_pk)s</field>
|
|
<field to="m2m_through_regress.group" name="group" rel="ManyToOneRel">%(g_pk)s</field>
|
|
<field type="IntegerField" name="price">100</field>
|
|
</object>
|
|
<object pk="%(p_pk)s" model="m2m_through_regress.person">
|
|
<field type="CharField" name="name">Bob</field>
|
|
</object>
|
|
<object pk="%(g_pk)s" model="m2m_through_regress.group">
|
|
<field type="CharField" name="name">Roll</field>
|
|
</object>
|
|
</django-objects>
|
|
""".strip() % pks)
|
|
|
|
def test_join_trimming(self):
|
|
"Check that we don't involve too many copies of the intermediate table when doing a join. Refs #8046, #8254"
|
|
bob = Person.objects.create(name="Bob")
|
|
jim = Person.objects.create(name="Jim")
|
|
|
|
rock = Group.objects.create(name="Rock")
|
|
roll = Group.objects.create(name="Roll")
|
|
|
|
Membership.objects.create(person=bob, group=rock)
|
|
Membership.objects.create(person=jim, group=rock, price=50)
|
|
Membership.objects.create(person=bob, group=roll, price=50)
|
|
|
|
self.assertQuerysetEqual(
|
|
rock.members.filter(membership__price=50), [
|
|
"<Person: Jim>",
|
|
]
|
|
)
|
|
|
|
self.assertQuerysetEqual(
|
|
bob.group_set.filter(membership__price=50), [
|
|
"<Group: Roll>",
|
|
]
|
|
)
|
|
|
|
class ThroughLoadDataTestCase(TestCase):
|
|
fixtures = ["m2m_through"]
|
|
|
|
def test_sequence_creation(self):
|
|
"Check that sequences on an m2m_through are created for the through model, not a phantom auto-generated m2m table. Refs #11107"
|
|
out = StringIO()
|
|
management.call_command("dumpdata", "m2m_through_regress", format="json", stdout=out)
|
|
self.assertEqual(out.getvalue().strip(), """[{"pk": 1, "model": "m2m_through_regress.usermembership", "fields": {"price": 100, "group": 1, "user": 1}}, {"pk": 1, "model": "m2m_through_regress.person", "fields": {"name": "Guido"}}, {"pk": 1, "model": "m2m_through_regress.group", "fields": {"name": "Python Core Group"}}]""")
|