Migrated proxy_models doctests. Thanks to Eric Florenzano.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13831 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee
parent
b7cd1682f5
commit
17c097b166
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@ -161,232 +161,4 @@ class Improvement(Issue):
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class ProxyImprovement(Improvement):
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class Meta:
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proxy = True
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__test__ = {'API_TESTS' : """
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# The MyPerson model should be generating the same database queries as the
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# Person model (when the same manager is used in each case).
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>>> from django.db import DEFAULT_DB_ALIAS
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>>> MyPerson.other.all().query.get_compiler(DEFAULT_DB_ALIAS).as_sql() == Person.objects.order_by("name").query.get_compiler(DEFAULT_DB_ALIAS).as_sql()
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True
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# The StatusPerson models should have its own table (it's using ORM-level
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# inheritance).
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>>> StatusPerson.objects.all().query.get_compiler(DEFAULT_DB_ALIAS).as_sql() == Person.objects.all().query.get_compiler(DEFAULT_DB_ALIAS).as_sql()
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False
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# Creating a Person makes them accessible through the MyPerson proxy.
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>>> _ = Person.objects.create(name="Foo McBar")
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>>> len(Person.objects.all())
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1
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>>> len(MyPerson.objects.all())
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1
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>>> MyPerson.objects.get(name="Foo McBar").id
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1
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>>> MyPerson.objects.get(id=1).has_special_name()
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False
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# Person is not proxied by StatusPerson subclass, however.
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>>> StatusPerson.objects.all()
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[]
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# A new MyPerson also shows up as a standard Person
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>>> _ = MyPerson.objects.create(name="Bazza del Frob")
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>>> len(MyPerson.objects.all())
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2
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>>> len(Person.objects.all())
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2
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>>> _ = LowerStatusPerson.objects.create(status="low", name="homer")
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>>> LowerStatusPerson.objects.all()
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[<LowerStatusPerson: homer>]
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# Correct type when querying a proxy of proxy
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>>> MyPersonProxy.objects.all()
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[<MyPersonProxy: Bazza del Frob>, <MyPersonProxy: Foo McBar>, <MyPersonProxy: homer>]
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# Proxy models are included in the ancestors for a model's DoesNotExist and MultipleObjectsReturned
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>>> try:
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... MyPersonProxy.objects.get(name='Zathras')
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... except Person.DoesNotExist:
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... pass
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>>> try:
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... MyPersonProxy.objects.get(id__lt=10)
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... except Person.MultipleObjectsReturned:
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... pass
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>>> try:
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... StatusPerson.objects.get(name='Zathras')
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... except Person.DoesNotExist:
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... pass
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>>> sp1 = StatusPerson.objects.create(name='Bazza Jr.')
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>>> sp2 = StatusPerson.objects.create(name='Foo Jr.')
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>>> try:
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... StatusPerson.objects.get(id__lt=10)
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... except Person.MultipleObjectsReturned:
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... pass
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# And now for some things that shouldn't work...
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#
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# All base classes must be non-abstract
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>>> class NoAbstract(Abstract):
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... class Meta:
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... proxy = True
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Traceback (most recent call last):
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....
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TypeError: Abstract base class containing model fields not permitted for proxy model 'NoAbstract'.
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# The proxy must actually have one concrete base class
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>>> class TooManyBases(Person, Abstract):
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... class Meta:
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... proxy = True
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Traceback (most recent call last):
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....
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TypeError: Abstract base class containing model fields not permitted for proxy model 'TooManyBases'.
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>>> class NoBaseClasses(models.Model):
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... class Meta:
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... proxy = True
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Traceback (most recent call last):
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....
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TypeError: Proxy model 'NoBaseClasses' has no non-abstract model base class.
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# A proxy cannot introduce any new fields
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>>> class NoNewFields(Person):
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... newfield = models.BooleanField()
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... class Meta:
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... proxy = True
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Traceback (most recent call last):
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....
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FieldError: Proxy model 'NoNewFields' contains model fields.
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# Manager tests.
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>>> Person.objects.all().delete()
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>>> _ = Person.objects.create(name="fred")
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>>> _ = Person.objects.create(name="wilma")
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>>> _ = Person.objects.create(name="barney")
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>>> MyPerson.objects.all()
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[<MyPerson: barney>, <MyPerson: fred>]
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>>> MyPerson._default_manager.all()
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[<MyPerson: barney>, <MyPerson: fred>]
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>>> OtherPerson.objects.all()
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[<OtherPerson: barney>, <OtherPerson: wilma>]
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>>> OtherPerson.excluder.all()
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[<OtherPerson: barney>, <OtherPerson: fred>]
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>>> OtherPerson._default_manager.all()
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[<OtherPerson: barney>, <OtherPerson: wilma>]
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# Test save signals for proxy models
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>>> from django.db.models import signals
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>>> def make_handler(model, event):
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... def _handler(*args, **kwargs):
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... print u"%s %s save" % (model, event)
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... return _handler
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>>> h1 = make_handler('MyPerson', 'pre')
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>>> h2 = make_handler('MyPerson', 'post')
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>>> h3 = make_handler('Person', 'pre')
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>>> h4 = make_handler('Person', 'post')
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>>> signals.pre_save.connect(h1, sender=MyPerson)
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>>> signals.post_save.connect(h2, sender=MyPerson)
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>>> signals.pre_save.connect(h3, sender=Person)
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>>> signals.post_save.connect(h4, sender=Person)
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>>> dino = MyPerson.objects.create(name=u"dino")
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MyPerson pre save
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MyPerson post save
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# Test save signals for proxy proxy models
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>>> h5 = make_handler('MyPersonProxy', 'pre')
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>>> h6 = make_handler('MyPersonProxy', 'post')
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>>> signals.pre_save.connect(h5, sender=MyPersonProxy)
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>>> signals.post_save.connect(h6, sender=MyPersonProxy)
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>>> dino = MyPersonProxy.objects.create(name=u"pebbles")
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MyPersonProxy pre save
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MyPersonProxy post save
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>>> signals.pre_save.disconnect(h1, sender=MyPerson)
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>>> signals.post_save.disconnect(h2, sender=MyPerson)
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>>> signals.pre_save.disconnect(h3, sender=Person)
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>>> signals.post_save.disconnect(h4, sender=Person)
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>>> signals.pre_save.disconnect(h5, sender=MyPersonProxy)
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>>> signals.post_save.disconnect(h6, sender=MyPersonProxy)
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# A proxy has the same content type as the model it is proxying for (at the
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# storage level, it is meant to be essentially indistinguishable).
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>>> ctype = ContentType.objects.get_for_model
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>>> ctype(Person) is ctype(OtherPerson)
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True
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>>> MyPersonProxy.objects.all()
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[<MyPersonProxy: barney>, <MyPersonProxy: dino>, <MyPersonProxy: fred>, <MyPersonProxy: pebbles>]
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>>> u = User.objects.create(name='Bruce')
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>>> User.objects.all()
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[<User: Bruce>]
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>>> UserProxy.objects.all()
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[<UserProxy: Bruce>]
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>>> UserProxyProxy.objects.all()
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[<UserProxyProxy: Bruce>]
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# Proxy objects can be deleted
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>>> u2 = UserProxy.objects.create(name='George')
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>>> UserProxy.objects.all()
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[<UserProxy: Bruce>, <UserProxy: George>]
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>>> u2.delete()
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>>> UserProxy.objects.all()
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[<UserProxy: Bruce>]
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# We can still use `select_related()` to include related models in our querysets.
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>>> country = Country.objects.create(name='Australia')
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>>> state = State.objects.create(name='New South Wales', country=country)
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>>> State.objects.select_related()
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[<State: New South Wales>]
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>>> StateProxy.objects.select_related()
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[<StateProxy: New South Wales>]
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>>> StateProxy.objects.get(name='New South Wales')
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<StateProxy: New South Wales>
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>>> StateProxy.objects.select_related().get(name='New South Wales')
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<StateProxy: New South Wales>
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>>> contributor = TrackerUser.objects.create(name='Contributor',status='contrib')
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>>> someone = BaseUser.objects.create(name='Someone')
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>>> _ = Bug.objects.create(summary='fix this', version='1.1beta',
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... assignee=contributor, reporter=someone)
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>>> pcontributor = ProxyTrackerUser.objects.create(name='OtherContributor',
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... status='proxy')
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>>> _ = Improvement.objects.create(summary='improve that', version='1.1beta',
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... assignee=contributor, reporter=pcontributor,
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... associated_bug=ProxyProxyBug.objects.all()[0])
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# Related field filter on proxy
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>>> ProxyBug.objects.get(version__icontains='beta')
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<ProxyBug: ProxyBug:fix this>
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# Select related + filter on proxy
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>>> ProxyBug.objects.select_related().get(version__icontains='beta')
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<ProxyBug: ProxyBug:fix this>
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# Proxy of proxy, select_related + filter
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>>> ProxyProxyBug.objects.select_related().get(version__icontains='beta')
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<ProxyProxyBug: ProxyProxyBug:fix this>
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# Select related + filter on a related proxy field
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>>> ProxyImprovement.objects.select_related().get(reporter__name__icontains='butor')
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<ProxyImprovement: ProxyImprovement:improve that>
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# Select related + filter on a related proxy of proxy field
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>>> ProxyImprovement.objects.select_related().get(associated_bug__summary__icontains='fix')
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<ProxyImprovement: ProxyImprovement:improve that>
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Proxy models can be loaded from fixtures (Regression for #11194)
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>>> from django.core import management
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>>> management.call_command('loaddata', 'mypeople.json', verbosity=0)
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>>> MyPerson.objects.get(pk=100)
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<MyPerson: Elvis Presley>
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"""}
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proxy = True
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@ -0,0 +1,314 @@
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from django.test import TestCase
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from django.db import models, DEFAULT_DB_ALIAS
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from django.db.models import signals
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from django.core import management
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from django.core.exceptions import FieldError
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from django.contrib.contenttypes.models import ContentType
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from models import MyPerson, Person, StatusPerson, LowerStatusPerson
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from models import MyPersonProxy, Abstract, OtherPerson, User, UserProxy
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from models import UserProxyProxy, Country, State, StateProxy, TrackerUser
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from models import BaseUser, Bug, ProxyTrackerUser, Improvement, ProxyProxyBug
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from models import ProxyBug, ProxyImprovement
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class ProxyModelTests(TestCase):
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def test_same_manager_queries(self):
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"""
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The MyPerson model should be generating the same database queries as
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the Person model (when the same manager is used in each case).
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"""
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my_person_sql = MyPerson.other.all().query.get_compiler(
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DEFAULT_DB_ALIAS).as_sql()
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person_sql = Person.objects.order_by("name").query.get_compiler(
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DEFAULT_DB_ALIAS).as_sql()
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self.assertEqual(my_person_sql, person_sql)
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def test_inheretance_new_table(self):
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"""
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The StatusPerson models should have its own table (it's using ORM-level
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inheritance).
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"""
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sp_sql = StatusPerson.objects.all().query.get_compiler(
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DEFAULT_DB_ALIAS).as_sql()
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p_sql = Person.objects.all().query.get_compiler(
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DEFAULT_DB_ALIAS).as_sql()
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self.assertNotEqual(sp_sql, p_sql)
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def test_basic_proxy(self):
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"""
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Creating a Person makes them accessible through the MyPerson proxy.
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"""
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Person.objects.create(name="Foo McBar")
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self.assertEqual(len(Person.objects.all()), 1)
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self.assertEqual(len(MyPerson.objects.all()), 1)
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self.assertEqual(MyPerson.objects.get(name="Foo McBar").id, 1)
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self.assertFalse(MyPerson.objects.get(id=1).has_special_name())
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def test_no_proxy(self):
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"""
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Person is not proxied by StatusPerson subclass.
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"""
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Person.objects.create(name="Foo McBar")
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self.assertEqual(list(StatusPerson.objects.all()), [])
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def test_basic_proxy_reverse(self):
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"""
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A new MyPerson also shows up as a standard Person.
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"""
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MyPerson.objects.create(name="Bazza del Frob")
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self.assertEqual(len(MyPerson.objects.all()), 1)
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self.assertEqual(len(Person.objects.all()), 1)
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LowerStatusPerson.objects.create(status="low", name="homer")
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lsps = [lsp.name for lsp in LowerStatusPerson.objects.all()]
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self.assertEqual(lsps, ["homer"])
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def test_correct_type_proxy_of_proxy(self):
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"""
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Correct type when querying a proxy of proxy
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"""
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Person.objects.create(name="Foo McBar")
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MyPerson.objects.create(name="Bazza del Frob")
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LowerStatusPerson.objects.create(status="low", name="homer")
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pp = sorted([mpp.name for mpp in MyPersonProxy.objects.all()])
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self.assertEqual(pp, ['Bazza del Frob', 'Foo McBar', 'homer'])
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def test_proxy_included_in_ancestors(self):
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"""
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Proxy models are included in the ancestors for a model's DoesNotExist
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and MultipleObjectsReturned
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"""
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Person.objects.create(name="Foo McBar")
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MyPerson.objects.create(name="Bazza del Frob")
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LowerStatusPerson.objects.create(status="low", name="homer")
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max_id = Person.objects.aggregate(max_id=models.Max('id'))['max_id']
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self.assertRaises(Person.DoesNotExist,
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MyPersonProxy.objects.get,
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name='Zathras'
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)
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self.assertRaises(Person.MultipleObjectsReturned,
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MyPersonProxy.objects.get,
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id__lt=max_id+1
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)
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self.assertRaises(Person.DoesNotExist,
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StatusPerson.objects.get,
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name='Zathras'
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)
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sp1 = StatusPerson.objects.create(name='Bazza Jr.')
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sp2 = StatusPerson.objects.create(name='Foo Jr.')
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max_id = Person.objects.aggregate(max_id=models.Max('id'))['max_id']
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self.assertRaises(Person.MultipleObjectsReturned,
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StatusPerson.objects.get,
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id__lt=max_id+1
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)
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def test_abc(self):
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"""
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All base classes must be non-abstract
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"""
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def build_abc():
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class NoAbstract(Abstract):
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class Meta:
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proxy = True
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self.assertRaises(TypeError, build_abc)
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def test_no_cbc(self):
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"""
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The proxy must actually have one concrete base class
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"""
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def build_no_cbc():
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class TooManyBases(Person, Abstract):
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class Meta:
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proxy = True
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self.assertRaises(TypeError, build_no_cbc)
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def test_no_base_classes(self):
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def build_no_base_classes():
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class NoBaseClasses(models.Model):
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class Meta:
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proxy = True
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self.assertRaises(TypeError, build_no_base_classes)
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def test_new_fields(self):
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def build_new_fields():
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class NoNewFields(Person):
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newfield = models.BooleanField()
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class Meta:
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proxy = True
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self.assertRaises(FieldError, build_new_fields)
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def test_myperson_manager(self):
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Person.objects.create(name="fred")
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Person.objects.create(name="wilma")
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Person.objects.create(name="barney")
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resp = [p.name for p in MyPerson.objects.all()]
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self.assertEqual(resp, ['barney', 'fred'])
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resp = [p.name for p in MyPerson._default_manager.all()]
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self.assertEqual(resp, ['barney', 'fred'])
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def test_otherperson_manager(self):
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Person.objects.create(name="fred")
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Person.objects.create(name="wilma")
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Person.objects.create(name="barney")
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resp = [p.name for p in OtherPerson.objects.all()]
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self.assertEqual(resp, ['barney', 'wilma'])
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resp = [p.name for p in OtherPerson.excluder.all()]
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self.assertEqual(resp, ['barney', 'fred'])
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resp = [p.name for p in OtherPerson._default_manager.all()]
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self.assertEqual(resp, ['barney', 'wilma'])
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def test_proxy_model_signals(self):
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"""
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Test save signals for proxy models
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"""
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output = []
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def make_handler(model, event):
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def _handler(*args, **kwargs):
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output.append('%s %s save' % (model, event))
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return _handler
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h1 = make_handler('MyPerson', 'pre')
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h2 = make_handler('MyPerson', 'post')
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h3 = make_handler('Person', 'pre')
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h4 = make_handler('Person', 'post')
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signals.pre_save.connect(h1, sender=MyPerson)
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signals.post_save.connect(h2, sender=MyPerson)
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signals.pre_save.connect(h3, sender=Person)
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signals.post_save.connect(h4, sender=Person)
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dino = MyPerson.objects.create(name=u"dino")
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self.assertEqual(output, [
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'MyPerson pre save',
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'MyPerson post save'
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])
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output = []
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h5 = make_handler('MyPersonProxy', 'pre')
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h6 = make_handler('MyPersonProxy', 'post')
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signals.pre_save.connect(h5, sender=MyPersonProxy)
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signals.post_save.connect(h6, sender=MyPersonProxy)
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dino = MyPersonProxy.objects.create(name=u"pebbles")
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self.assertEqual(output, [
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'MyPersonProxy pre save',
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'MyPersonProxy post save'
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])
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signals.pre_save.disconnect(h1, sender=MyPerson)
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signals.post_save.disconnect(h2, sender=MyPerson)
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signals.pre_save.disconnect(h3, sender=Person)
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signals.post_save.disconnect(h4, sender=Person)
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signals.pre_save.disconnect(h5, sender=MyPersonProxy)
|
||||
signals.post_save.disconnect(h6, sender=MyPersonProxy)
|
||||
|
||||
def test_content_type(self):
|
||||
ctype = ContentType.objects.get_for_model
|
||||
self.assertTrue(ctype(Person) is ctype(OtherPerson))
|
||||
|
||||
def test_user_userproxy_userproxyproxy(self):
|
||||
User.objects.create(name='Bruce')
|
||||
|
||||
resp = [u.name for u in User.objects.all()]
|
||||
self.assertEqual(resp, ['Bruce'])
|
||||
|
||||
resp = [u.name for u in UserProxy.objects.all()]
|
||||
self.assertEqual(resp, ['Bruce'])
|
||||
|
||||
resp = [u.name for u in UserProxyProxy.objects.all()]
|
||||
self.assertEqual(resp, ['Bruce'])
|
||||
|
||||
def test_proxy_delete(self):
|
||||
"""
|
||||
Proxy objects can be deleted
|
||||
"""
|
||||
User.objects.create(name='Bruce')
|
||||
u2 = UserProxy.objects.create(name='George')
|
||||
|
||||
resp = [u.name for u in UserProxy.objects.all()]
|
||||
self.assertEqual(resp, ['Bruce', 'George'])
|
||||
|
||||
u2.delete()
|
||||
|
||||
resp = [u.name for u in UserProxy.objects.all()]
|
||||
self.assertEqual(resp, ['Bruce'])
|
||||
|
||||
def test_select_related(self):
|
||||
"""
|
||||
We can still use `select_related()` to include related models in our
|
||||
querysets.
|
||||
"""
|
||||
country = Country.objects.create(name='Australia')
|
||||
state = State.objects.create(name='New South Wales', country=country)
|
||||
|
||||
resp = [s.name for s in State.objects.select_related()]
|
||||
self.assertEqual(resp, ['New South Wales'])
|
||||
|
||||
resp = [s.name for s in StateProxy.objects.select_related()]
|
||||
self.assertEqual(resp, ['New South Wales'])
|
||||
|
||||
self.assertEqual(StateProxy.objects.get(name='New South Wales').name,
|
||||
'New South Wales')
|
||||
|
||||
resp = StateProxy.objects.select_related().get(name='New South Wales')
|
||||
self.assertEqual(resp.name, 'New South Wales')
|
||||
|
||||
def test_proxy_bug(self):
|
||||
contributor = TrackerUser.objects.create(name='Contributor',
|
||||
status='contrib')
|
||||
someone = BaseUser.objects.create(name='Someone')
|
||||
Bug.objects.create(summary='fix this', version='1.1beta',
|
||||
assignee=contributor, reporter=someone)
|
||||
pcontributor = ProxyTrackerUser.objects.create(name='OtherContributor',
|
||||
status='proxy')
|
||||
Improvement.objects.create(summary='improve that', version='1.1beta',
|
||||
assignee=contributor, reporter=pcontributor,
|
||||
associated_bug=ProxyProxyBug.objects.all()[0])
|
||||
|
||||
# Related field filter on proxy
|
||||
resp = ProxyBug.objects.get(version__icontains='beta')
|
||||
self.assertEqual(repr(resp), '<ProxyBug: ProxyBug:fix this>')
|
||||
|
||||
# Select related + filter on proxy
|
||||
resp = ProxyBug.objects.select_related().get(version__icontains='beta')
|
||||
self.assertEqual(repr(resp), '<ProxyBug: ProxyBug:fix this>')
|
||||
|
||||
# Proxy of proxy, select_related + filter
|
||||
resp = ProxyProxyBug.objects.select_related().get(
|
||||
version__icontains='beta'
|
||||
)
|
||||
self.assertEqual(repr(resp), '<ProxyProxyBug: ProxyProxyBug:fix this>')
|
||||
|
||||
# Select related + filter on a related proxy field
|
||||
resp = ProxyImprovement.objects.select_related().get(
|
||||
reporter__name__icontains='butor'
|
||||
)
|
||||
self.assertEqual(repr(resp),
|
||||
'<ProxyImprovement: ProxyImprovement:improve that>'
|
||||
)
|
||||
|
||||
# Select related + filter on a related proxy of proxy field
|
||||
resp = ProxyImprovement.objects.select_related().get(
|
||||
associated_bug__summary__icontains='fix'
|
||||
)
|
||||
self.assertEqual(repr(resp),
|
||||
'<ProxyImprovement: ProxyImprovement:improve that>'
|
||||
)
|
||||
|
||||
def test_proxy_load_from_fixture(self):
|
||||
management.call_command('loaddata', 'mypeople.json', verbosity=0, commit=False)
|
||||
p = MyPerson.objects.get(pk=100)
|
||||
self.assertEqual(p.name, 'Elvis Presley')
|
||||
Loading…
Reference in New Issue