mirror of https://github.com/django/django.git
Migrated model_inheritance_regress doctests. Thanks to Gregor Müllegger for the patch.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@14576 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee
parent
b84838aef4
commit
35dc7d6033
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@ -1,7 +1,3 @@
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"""
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Regression tests for Model inheritance behaviour.
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"""
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import datetime
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import datetime
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from django.db import models
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from django.db import models
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@ -136,255 +132,3 @@ class BachelorParty(AbstractEvent):
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class MessyBachelorParty(BachelorParty):
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class MessyBachelorParty(BachelorParty):
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pass
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pass
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__test__ = {'API_TESTS':"""
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# Regression for #7350, #7202
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# Check that when you create a Parent object with a specific reference to an
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# existent child instance, saving the Parent doesn't duplicate the child. This
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# behaviour is only activated during a raw save - it is mostly relevant to
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# deserialization, but any sort of CORBA style 'narrow()' API would require a
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# similar approach.
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# Create a child-parent-grandparent chain
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>>> place1 = Place(name="Guido's House of Pasta", address='944 W. Fullerton')
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>>> place1.save_base(raw=True)
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>>> restaurant = Restaurant(place_ptr=place1, serves_hot_dogs=True, serves_pizza=False)
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>>> restaurant.save_base(raw=True)
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>>> italian_restaurant = ItalianRestaurant(restaurant_ptr=restaurant, serves_gnocchi=True)
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>>> italian_restaurant.save_base(raw=True)
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# Create a child-parent chain with an explicit parent link
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>>> place2 = Place(name='Main St', address='111 Main St')
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>>> place2.save_base(raw=True)
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>>> park = ParkingLot(parent=place2, capacity=100)
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>>> park.save_base(raw=True)
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# Check that no extra parent objects have been created.
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>>> Place.objects.all()
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[<Place: Guido's House of Pasta the place>, <Place: Main St the place>]
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>>> dicts = Restaurant.objects.values('name','serves_hot_dogs')
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>>> [sorted(d.items()) for d in dicts] == [[('name', u"Guido's House of Pasta"), ('serves_hot_dogs', True)]]
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True
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>>> dicts = ItalianRestaurant.objects.values('name','serves_hot_dogs','serves_gnocchi')
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>>> [sorted(d.items()) for d in dicts] == [[('name', u"Guido's House of Pasta"), ('serves_gnocchi', True), ('serves_hot_dogs', True)]]
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True
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>>> dicts = ParkingLot.objects.values('name','capacity')
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>>> [sorted(d.items()) for d in dicts]
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[[('capacity', 100), ('name', u'Main St')]]
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# You can also update objects when using a raw save.
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>>> place1.name = "Guido's All New House of Pasta"
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>>> place1.save_base(raw=True)
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>>> restaurant.serves_hot_dogs = False
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>>> restaurant.save_base(raw=True)
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>>> italian_restaurant.serves_gnocchi = False
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>>> italian_restaurant.save_base(raw=True)
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>>> place2.name='Derelict lot'
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>>> place2.save_base(raw=True)
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>>> park.capacity = 50
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>>> park.save_base(raw=True)
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# No extra parent objects after an update, either.
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>>> Place.objects.all()
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[<Place: Derelict lot the place>, <Place: Guido's All New House of Pasta the place>]
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>>> dicts = Restaurant.objects.values('name','serves_hot_dogs')
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>>> [sorted(d.items()) for d in dicts] == [[('name', u"Guido's All New House of Pasta"), ('serves_hot_dogs', False)]]
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True
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>>> dicts = ItalianRestaurant.objects.values('name','serves_hot_dogs','serves_gnocchi')
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>>> [sorted(d.items()) for d in dicts] == [[('name', u"Guido's All New House of Pasta"), ('serves_gnocchi', False), ('serves_hot_dogs', False)]]
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True
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>>> dicts = ParkingLot.objects.values('name','capacity')
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>>> [sorted(d.items()) for d in dicts]
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[[('capacity', 50), ('name', u'Derelict lot')]]
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# If you try to raw_save a parent attribute onto a child object,
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# the attribute will be ignored.
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>>> italian_restaurant.name = "Lorenzo's Pasta Hut"
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>>> italian_restaurant.save_base(raw=True)
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# Note that the name has not changed
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# - name is an attribute of Place, not ItalianRestaurant
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>>> dicts = ItalianRestaurant.objects.values('name','serves_hot_dogs','serves_gnocchi')
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>>> [sorted(d.items()) for d in dicts] == [[('name', u"Guido's All New House of Pasta"), ('serves_gnocchi', False), ('serves_hot_dogs', False)]]
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True
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# Regressions tests for #7105: dates() queries should be able to use fields
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# from the parent model as easily as the child.
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>>> obj = Child.objects.create(name='child', created=datetime.datetime(2008, 6, 26, 17, 0, 0))
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>>> Child.objects.dates('created', 'month')
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[datetime.datetime(2008, 6, 1, 0, 0)]
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# Regression test for #7276: calling delete() on a model with multi-table
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# inheritance should delete the associated rows from any ancestor tables, as
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# well as any descendent objects.
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>>> ident = ItalianRestaurant.objects.all()[0].id
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>>> Place.objects.get(pk=ident)
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<Place: Guido's All New House of Pasta the place>
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>>> xx = Restaurant.objects.create(name='a', address='xx', serves_hot_dogs=True, serves_pizza=False)
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# This should delete both Restuarants, plus the related places, plus the ItalianRestaurant.
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>>> Restaurant.objects.all().delete()
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>>> Place.objects.get(pk=ident)
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Traceback (most recent call last):
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...
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DoesNotExist: Place matching query does not exist.
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>>> ItalianRestaurant.objects.get(pk=ident)
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Traceback (most recent call last):
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...
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DoesNotExist: ItalianRestaurant matching query does not exist.
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# Regression test for #6755
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>>> r = Restaurant(serves_pizza=False)
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>>> r.save()
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>>> r.id == r.place_ptr_id
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True
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>>> orig_id = r.id
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>>> r = Restaurant(place_ptr_id=orig_id, serves_pizza=True)
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>>> r.save()
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>>> r.id == orig_id
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True
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>>> r.id == r.place_ptr_id
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True
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# Regression test for #7488. This looks a little crazy, but it's the equivalent
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# of what the admin interface has to do for the edit-inline case.
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>>> Supplier.objects.filter(restaurant=Restaurant(name='xx', address='yy'))
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[]
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# Regression test for #11764.
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>>> for w in Wholesaler.objects.all().select_related():
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... print w
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# Regression test for #7853
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# If the parent class has a self-referential link, make sure that any updates
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# to that link via the child update the right table.
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>>> obj = SelfRefChild.objects.create(child_data=37, parent_data=42)
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>>> obj.delete()
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# Regression tests for #8076 - get_(next/previous)_by_date should work.
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>>> c1 = ArticleWithAuthor(headline='ArticleWithAuthor 1', author="Person 1", pub_date=datetime.datetime(2005, 8, 1, 3, 0))
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>>> c1.save()
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>>> c2 = ArticleWithAuthor(headline='ArticleWithAuthor 2', author="Person 2", pub_date=datetime.datetime(2005, 8, 1, 10, 0))
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>>> c2.save()
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>>> c3 = ArticleWithAuthor(headline='ArticleWithAuthor 3', author="Person 3", pub_date=datetime.datetime(2005, 8, 2))
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>>> c3.save()
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>>> c1.get_next_by_pub_date()
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<ArticleWithAuthor: ArticleWithAuthor 2>
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>>> c2.get_next_by_pub_date()
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<ArticleWithAuthor: ArticleWithAuthor 3>
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>>> c3.get_next_by_pub_date()
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Traceback (most recent call last):
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...
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DoesNotExist: ArticleWithAuthor matching query does not exist.
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>>> c3.get_previous_by_pub_date()
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<ArticleWithAuthor: ArticleWithAuthor 2>
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>>> c2.get_previous_by_pub_date()
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<ArticleWithAuthor: ArticleWithAuthor 1>
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>>> c1.get_previous_by_pub_date()
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Traceback (most recent call last):
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...
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DoesNotExist: ArticleWithAuthor matching query does not exist.
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# Regression test for #8825: Make sure all inherited fields (esp. m2m fields, in
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# this case) appear on the child class.
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>>> M2MChild.objects.filter(articles__isnull=False)
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[]
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# All fields from an ABC, including those inherited non-abstractly should be
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# available on child classes (#7588). Creating this instance should work
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# without error.
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>>> _ = QualityControl.objects.create(headline="Problems in Django", pub_date=datetime.datetime.now(), quality=10, assignee="adrian")
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# Ordering should not include any database column more than once (this is most
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# likely to ocurr naturally with model inheritance, so we check it here).
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# Regression test for #9390. This necessarily pokes at the SQL string for the
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# query, since the duplicate problems are only apparent at that late stage.
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>>> qs = ArticleWithAuthor.objects.order_by('pub_date', 'pk')
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>>> sql = qs.query.get_compiler(qs.db).as_sql()[0]
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>>> fragment = sql[sql.find('ORDER BY'):]
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>>> pos = fragment.find('pub_date')
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>>> fragment.find('pub_date', pos + 1) == -1
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True
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# It is possible to call update() and only change a field in an ancestor model
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# (regression test for #10362).
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>>> article = ArticleWithAuthor.objects.create(author="fred", headline="Hey there!", pub_date = datetime.datetime(2009, 3, 1, 8, 0, 0))
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>>> ArticleWithAuthor.objects.filter(author="fred").update(headline="Oh, no!")
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1
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>>> ArticleWithAuthor.objects.filter(pk=article.pk).update(headline="Oh, no!")
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1
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>>> DerivedM.objects.create(customPK=44, base_name="b1", derived_name="d1")
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<DerivedM: PK = 44, base_name = b1, derived_name = d1>
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>>> DerivedM.objects.all()
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[<DerivedM: PK = 44, base_name = b1, derived_name = d1>]
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# Regression tests for #10406
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# If there's a one-to-one link between a child model and the parent and no
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# explicit pk declared, we can use the one-to-one link as the pk on the child.
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# The ParkingLot2 model shows this behaviour.
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>>> ParkingLot2._meta.pk.name
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"parent"
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# However, the connector from child to parent need not be the pk on the child
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# at all.
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>>> ParkingLot3._meta.pk.name
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"primary_key"
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>>> ParkingLot3._meta.get_ancestor_link(Place).name # the child->parent link
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"parent"
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# Check that many-to-many relations defined on an abstract base class
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# are correctly inherited (and created) on the child class.
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>>> p1 = Person.objects.create(name='Alice')
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>>> p2 = Person.objects.create(name='Bob')
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>>> p3 = Person.objects.create(name='Carol')
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>>> p4 = Person.objects.create(name='Dave')
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>>> birthday = BirthdayParty.objects.create(name='Birthday party for Alice')
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>>> birthday.attendees = [p1, p3]
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>>> bachelor = BachelorParty.objects.create(name='Bachelor party for Bob')
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>>> bachelor.attendees = [p2, p4]
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>>> print p1.birthdayparty_set.all()
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[<BirthdayParty: Birthday party for Alice>]
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>>> print p1.bachelorparty_set.all()
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[]
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>>> print p2.bachelorparty_set.all()
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[<BachelorParty: Bachelor party for Bob>]
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# Check that a subclass of a subclass of an abstract model
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# doesn't get it's own accessor.
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>>> p2.messybachelorparty_set.all()
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Traceback (most recent call last):
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...
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AttributeError: 'Person' object has no attribute 'messybachelorparty_set'
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# ... but it does inherit the m2m from it's parent
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>>> messy = MessyBachelorParty.objects.create(name='Bachelor party for Dave')
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>>> messy.attendees = [p4]
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>>> p4.bachelorparty_set.all()
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[<BachelorParty: Bachelor party for Bob>, <BachelorParty: Bachelor party for Dave>]
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"""}
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@ -0,0 +1,355 @@
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"""
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Regression tests for Model inheritance behaviour.
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"""
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import datetime
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from django.test import TestCase
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from regressiontests.model_inheritance_regress.models import (
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Place, Restaurant, ItalianRestaurant, ParkingLot, ParkingLot2,
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ParkingLot3, Supplier, Wholesaler, Child, SelfRefChild, ArticleWithAuthor,
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M2MChild, QualityControl, DerivedM, Person, BirthdayParty, BachelorParty,
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MessyBachelorParty)
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class ModelInheritanceTest(TestCase):
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def test_model_inheritance(self):
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# Regression for #7350, #7202
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# Check that when you create a Parent object with a specific reference
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# to an existent child instance, saving the Parent doesn't duplicate
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# the child. This behaviour is only activated during a raw save - it
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# is mostly relevant to deserialization, but any sort of CORBA style
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# 'narrow()' API would require a similar approach.
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# Create a child-parent-grandparent chain
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place1 = Place(
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name="Guido's House of Pasta",
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address='944 W. Fullerton')
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place1.save_base(raw=True)
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restaurant = Restaurant(
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place_ptr=place1,
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serves_hot_dogs=True,
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serves_pizza=False)
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restaurant.save_base(raw=True)
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italian_restaurant = ItalianRestaurant(
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restaurant_ptr=restaurant,
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serves_gnocchi=True)
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italian_restaurant.save_base(raw=True)
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# Create a child-parent chain with an explicit parent link
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place2 = Place(name='Main St', address='111 Main St')
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place2.save_base(raw=True)
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park = ParkingLot(parent=place2, capacity=100)
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park.save_base(raw=True)
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# Check that no extra parent objects have been created.
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places = list(Place.objects.all())
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self.assertEqual(places, [place1, place2])
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dicts = list(Restaurant.objects.values('name','serves_hot_dogs'))
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self.assertEqual(dicts, [{
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'name': u"Guido's House of Pasta",
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'serves_hot_dogs': True
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}])
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dicts = list(ItalianRestaurant.objects.values(
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'name','serves_hot_dogs','serves_gnocchi'))
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self.assertEqual(dicts, [{
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'name': u"Guido's House of Pasta",
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'serves_gnocchi': True,
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'serves_hot_dogs': True,
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}])
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dicts = list(ParkingLot.objects.values('name','capacity'))
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self.assertEqual(dicts, [{
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'capacity': 100,
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'name': u'Main St',
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}])
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# You can also update objects when using a raw save.
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place1.name = "Guido's All New House of Pasta"
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place1.save_base(raw=True)
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restaurant.serves_hot_dogs = False
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restaurant.save_base(raw=True)
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italian_restaurant.serves_gnocchi = False
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italian_restaurant.save_base(raw=True)
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place2.name='Derelict lot'
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||||||
|
place2.save_base(raw=True)
|
||||||
|
|
||||||
|
park.capacity = 50
|
||||||
|
park.save_base(raw=True)
|
||||||
|
|
||||||
|
# No extra parent objects after an update, either.
|
||||||
|
places = list(Place.objects.all())
|
||||||
|
self.assertEqual(places, [place2, place1])
|
||||||
|
self.assertEqual(places[0].name, 'Derelict lot')
|
||||||
|
self.assertEqual(places[1].name, "Guido's All New House of Pasta")
|
||||||
|
|
||||||
|
dicts = list(Restaurant.objects.values('name','serves_hot_dogs'))
|
||||||
|
self.assertEqual(dicts, [{
|
||||||
|
'name': u"Guido's All New House of Pasta",
|
||||||
|
'serves_hot_dogs': False,
|
||||||
|
}])
|
||||||
|
|
||||||
|
dicts = list(ItalianRestaurant.objects.values(
|
||||||
|
'name', 'serves_hot_dogs', 'serves_gnocchi'))
|
||||||
|
self.assertEqual(dicts, [{
|
||||||
|
'name': u"Guido's All New House of Pasta",
|
||||||
|
'serves_gnocchi': False,
|
||||||
|
'serves_hot_dogs': False,
|
||||||
|
}])
|
||||||
|
|
||||||
|
dicts = list(ParkingLot.objects.values('name','capacity'))
|
||||||
|
self.assertEqual(dicts, [{
|
||||||
|
'capacity': 50,
|
||||||
|
'name': u'Derelict lot',
|
||||||
|
}])
|
||||||
|
|
||||||
|
# If you try to raw_save a parent attribute onto a child object,
|
||||||
|
# the attribute will be ignored.
|
||||||
|
|
||||||
|
italian_restaurant.name = "Lorenzo's Pasta Hut"
|
||||||
|
italian_restaurant.save_base(raw=True)
|
||||||
|
|
||||||
|
# Note that the name has not changed
|
||||||
|
# - name is an attribute of Place, not ItalianRestaurant
|
||||||
|
dicts = list(ItalianRestaurant.objects.values(
|
||||||
|
'name','serves_hot_dogs','serves_gnocchi'))
|
||||||
|
self.assertEqual(dicts, [{
|
||||||
|
'name': u"Guido's All New House of Pasta",
|
||||||
|
'serves_gnocchi': False,
|
||||||
|
'serves_hot_dogs': False,
|
||||||
|
}])
|
||||||
|
|
||||||
|
def test_issue_7105(self):
|
||||||
|
# Regressions tests for #7105: dates() queries should be able to use
|
||||||
|
# fields from the parent model as easily as the child.
|
||||||
|
obj = Child.objects.create(
|
||||||
|
name='child',
|
||||||
|
created=datetime.datetime(2008, 6, 26, 17, 0, 0))
|
||||||
|
dates = list(Child.objects.dates('created', 'month'))
|
||||||
|
self.assertEqual(dates, [datetime.datetime(2008, 6, 1, 0, 0)])
|
||||||
|
|
||||||
|
def test_issue_7276(self):
|
||||||
|
# Regression test for #7276: calling delete() on a model with
|
||||||
|
# multi-table inheritance should delete the associated rows from any
|
||||||
|
# ancestor tables, as well as any descendent objects.
|
||||||
|
place1 = Place(
|
||||||
|
name="Guido's House of Pasta",
|
||||||
|
address='944 W. Fullerton')
|
||||||
|
place1.save_base(raw=True)
|
||||||
|
restaurant = Restaurant(
|
||||||
|
place_ptr=place1,
|
||||||
|
serves_hot_dogs=True,
|
||||||
|
serves_pizza=False)
|
||||||
|
restaurant.save_base(raw=True)
|
||||||
|
italian_restaurant = ItalianRestaurant(
|
||||||
|
restaurant_ptr=restaurant,
|
||||||
|
serves_gnocchi=True)
|
||||||
|
italian_restaurant.save_base(raw=True)
|
||||||
|
|
||||||
|
ident = ItalianRestaurant.objects.all()[0].id
|
||||||
|
self.assertEqual(Place.objects.get(pk=ident), place1)
|
||||||
|
xx = Restaurant.objects.create(
|
||||||
|
name='a',
|
||||||
|
address='xx',
|
||||||
|
serves_hot_dogs=True,
|
||||||
|
serves_pizza=False)
|
||||||
|
|
||||||
|
# This should delete both Restuarants, plus the related places, plus
|
||||||
|
# the ItalianRestaurant.
|
||||||
|
Restaurant.objects.all().delete()
|
||||||
|
|
||||||
|
self.assertRaises(
|
||||||
|
Place.DoesNotExist,
|
||||||
|
Place.objects.get,
|
||||||
|
pk=ident)
|
||||||
|
self.assertRaises(
|
||||||
|
ItalianRestaurant.DoesNotExist,
|
||||||
|
ItalianRestaurant.objects.get,
|
||||||
|
pk=ident)
|
||||||
|
|
||||||
|
def test_issue_6755(self):
|
||||||
|
"""
|
||||||
|
Regression test for #6755
|
||||||
|
"""
|
||||||
|
r = Restaurant(serves_pizza=False)
|
||||||
|
r.save()
|
||||||
|
self.assertEqual(r.id, r.place_ptr_id)
|
||||||
|
orig_id = r.id
|
||||||
|
r = Restaurant(place_ptr_id=orig_id, serves_pizza=True)
|
||||||
|
r.save()
|
||||||
|
self.assertEqual(r.id, orig_id)
|
||||||
|
self.assertEqual(r.id, r.place_ptr_id)
|
||||||
|
|
||||||
|
def test_issue_7488(self):
|
||||||
|
# Regression test for #7488. This looks a little crazy, but it's the
|
||||||
|
# equivalent of what the admin interface has to do for the edit-inline
|
||||||
|
# case.
|
||||||
|
suppliers = Supplier.objects.filter(
|
||||||
|
restaurant=Restaurant(name='xx', address='yy'))
|
||||||
|
suppliers = list(suppliers)
|
||||||
|
self.assertEqual(suppliers, [])
|
||||||
|
|
||||||
|
def test_issue_11764(self):
|
||||||
|
"""
|
||||||
|
Regression test for #11764
|
||||||
|
"""
|
||||||
|
wholesalers = list(Wholesaler.objects.all().select_related())
|
||||||
|
self.assertEqual(wholesalers, [])
|
||||||
|
|
||||||
|
def test_issue_7853(self):
|
||||||
|
"""
|
||||||
|
Regression test for #7853
|
||||||
|
If the parent class has a self-referential link, make sure that any
|
||||||
|
updates to that link via the child update the right table.
|
||||||
|
"""
|
||||||
|
obj = SelfRefChild.objects.create(child_data=37, parent_data=42)
|
||||||
|
obj.delete()
|
||||||
|
|
||||||
|
def test_get_next_previous_by_date(self):
|
||||||
|
"""
|
||||||
|
Regression tests for #8076
|
||||||
|
get_(next/previous)_by_date should work
|
||||||
|
"""
|
||||||
|
c1 = ArticleWithAuthor(
|
||||||
|
headline='ArticleWithAuthor 1',
|
||||||
|
author="Person 1",
|
||||||
|
pub_date=datetime.datetime(2005, 8, 1, 3, 0))
|
||||||
|
c1.save()
|
||||||
|
c2 = ArticleWithAuthor(
|
||||||
|
headline='ArticleWithAuthor 2',
|
||||||
|
author="Person 2",
|
||||||
|
pub_date=datetime.datetime(2005, 8, 1, 10, 0))
|
||||||
|
c2.save()
|
||||||
|
c3 = ArticleWithAuthor(
|
||||||
|
headline='ArticleWithAuthor 3',
|
||||||
|
author="Person 3",
|
||||||
|
pub_date=datetime.datetime(2005, 8, 2))
|
||||||
|
c3.save()
|
||||||
|
|
||||||
|
self.assertEqual(c1.get_next_by_pub_date(), c2)
|
||||||
|
self.assertEqual(c2.get_next_by_pub_date(), c3)
|
||||||
|
self.assertRaises(
|
||||||
|
ArticleWithAuthor.DoesNotExist,
|
||||||
|
c3.get_next_by_pub_date)
|
||||||
|
self.assertEqual(c3.get_previous_by_pub_date(), c2)
|
||||||
|
self.assertEqual(c2.get_previous_by_pub_date(), c1)
|
||||||
|
self.assertRaises(
|
||||||
|
ArticleWithAuthor.DoesNotExist,
|
||||||
|
c1.get_previous_by_pub_date)
|
||||||
|
|
||||||
|
def test_inherited_fields(self):
|
||||||
|
"""
|
||||||
|
Regression test for #8825 and #9390
|
||||||
|
Make sure all inherited fields (esp. m2m fields, in this case) appear
|
||||||
|
on the child class.
|
||||||
|
"""
|
||||||
|
m2mchildren = list(M2MChild.objects.filter(articles__isnull=False))
|
||||||
|
self.assertEqual(m2mchildren, [])
|
||||||
|
|
||||||
|
# Ordering should not include any database column more than once (this
|
||||||
|
# is most likely to ocurr naturally with model inheritance, so we
|
||||||
|
# check it here). Regression test for #9390. This necessarily pokes at
|
||||||
|
# the SQL string for the query, since the duplicate problems are only
|
||||||
|
# apparent at that late stage.
|
||||||
|
qs = ArticleWithAuthor.objects.order_by('pub_date', 'pk')
|
||||||
|
sql = qs.query.get_compiler(qs.db).as_sql()[0]
|
||||||
|
fragment = sql[sql.find('ORDER BY'):]
|
||||||
|
pos = fragment.find('pub_date')
|
||||||
|
self.assertEqual(fragment.find('pub_date', pos + 1), -1)
|
||||||
|
|
||||||
|
def test_queryset_update_on_parent_model(self):
|
||||||
|
"""
|
||||||
|
Regression test for #10362
|
||||||
|
It is possible to call update() and only change a field in
|
||||||
|
an ancestor model.
|
||||||
|
"""
|
||||||
|
article = ArticleWithAuthor.objects.create(
|
||||||
|
author="fred",
|
||||||
|
headline="Hey there!",
|
||||||
|
pub_date=datetime.datetime(2009, 3, 1, 8, 0, 0))
|
||||||
|
update = ArticleWithAuthor.objects.filter(
|
||||||
|
author="fred").update(headline="Oh, no!")
|
||||||
|
self.assertEqual(update, 1)
|
||||||
|
update = ArticleWithAuthor.objects.filter(
|
||||||
|
pk=article.pk).update(headline="Oh, no!")
|
||||||
|
self.assertEqual(update, 1)
|
||||||
|
|
||||||
|
derivedm1 = DerivedM.objects.create(
|
||||||
|
customPK=44,
|
||||||
|
base_name="b1",
|
||||||
|
derived_name="d1")
|
||||||
|
self.assertEqual(derivedm1.customPK, 44)
|
||||||
|
self.assertEqual(derivedm1.base_name, 'b1')
|
||||||
|
self.assertEqual(derivedm1.derived_name, 'd1')
|
||||||
|
derivedms = list(DerivedM.objects.all())
|
||||||
|
self.assertEqual(derivedms, [derivedm1])
|
||||||
|
|
||||||
|
def test_use_explicit_o2o_to_parent_as_pk(self):
|
||||||
|
"""
|
||||||
|
Regression tests for #10406
|
||||||
|
If there's a one-to-one link between a child model and the parent and
|
||||||
|
no explicit pk declared, we can use the one-to-one link as the pk on
|
||||||
|
the child.
|
||||||
|
"""
|
||||||
|
self.assertEqual(ParkingLot2._meta.pk.name, "parent")
|
||||||
|
|
||||||
|
# However, the connector from child to parent need not be the pk on
|
||||||
|
# the child at all.
|
||||||
|
self.assertEqual(ParkingLot3._meta.pk.name, "primary_key")
|
||||||
|
# the child->parent link
|
||||||
|
self.assertEqual(
|
||||||
|
ParkingLot3._meta.get_ancestor_link(Place).name,
|
||||||
|
"parent")
|
||||||
|
|
||||||
|
def test_all_fields_from_abstract_base_class(self):
|
||||||
|
"""
|
||||||
|
Regression tests for #7588
|
||||||
|
"""
|
||||||
|
# All fields from an ABC, including those inherited non-abstractly
|
||||||
|
# should be available on child classes (#7588). Creating this instance
|
||||||
|
# should work without error.
|
||||||
|
QualityControl.objects.create(
|
||||||
|
headline="Problems in Django",
|
||||||
|
pub_date=datetime.datetime.now(),
|
||||||
|
quality=10,
|
||||||
|
assignee="adrian")
|
||||||
|
|
||||||
|
def test_abstract_base_class_m2m_relation_inheritance(self):
|
||||||
|
# Check that many-to-many relations defined on an abstract base class
|
||||||
|
# are correctly inherited (and created) on the child class.
|
||||||
|
p1 = Person.objects.create(name='Alice')
|
||||||
|
p2 = Person.objects.create(name='Bob')
|
||||||
|
p3 = Person.objects.create(name='Carol')
|
||||||
|
p4 = Person.objects.create(name='Dave')
|
||||||
|
|
||||||
|
birthday = BirthdayParty.objects.create(
|
||||||
|
name='Birthday party for Alice')
|
||||||
|
birthday.attendees = [p1, p3]
|
||||||
|
|
||||||
|
bachelor = BachelorParty.objects.create(name='Bachelor party for Bob')
|
||||||
|
bachelor.attendees = [p2, p4]
|
||||||
|
|
||||||
|
parties = list(p1.birthdayparty_set.all())
|
||||||
|
self.assertEqual(parties, [birthday])
|
||||||
|
|
||||||
|
parties = list(p1.bachelorparty_set.all())
|
||||||
|
self.assertEqual(parties, [])
|
||||||
|
|
||||||
|
parties = list(p2.bachelorparty_set.all())
|
||||||
|
self.assertEqual(parties, [bachelor])
|
||||||
|
|
||||||
|
# Check that a subclass of a subclass of an abstract model doesn't get
|
||||||
|
# it's own accessor.
|
||||||
|
self.assertFalse(hasattr(p2, 'messybachelorparty_set'))
|
||||||
|
|
||||||
|
# ... but it does inherit the m2m from it's parent
|
||||||
|
messy = MessyBachelorParty.objects.create(
|
||||||
|
name='Bachelor party for Dave')
|
||||||
|
messy.attendees = [p4]
|
||||||
|
messy_parent = messy.bachelorparty_ptr
|
||||||
|
|
||||||
|
parties = list(p4.bachelorparty_set.all())
|
||||||
|
self.assertEqual(parties, [bachelor, messy_parent])
|
||||||
Loading…
Reference in New Issue