mirror of
https://github.com/django/django.git
synced 2024-12-22 17:16:24 +00:00
443 lines
20 KiB
Python
443 lines
20 KiB
Python
from __future__ import unicode_literals
|
|
|
|
from django import forms
|
|
from django.contrib.contenttypes.generic import generic_inlineformset_factory
|
|
from django.contrib.contenttypes.models import ContentType
|
|
from django.test import TestCase
|
|
|
|
from .models import (TaggedItem, ValuableTaggedItem, Comparison, Animal,
|
|
Vegetable, Mineral, Gecko, Rock, ManualPK,
|
|
ForProxyModelModel, ForConcreteModelModel,
|
|
ProxyRelatedModel, ConcreteRelatedModel)
|
|
|
|
|
|
class GenericRelationsTests(TestCase):
|
|
def test_generic_relations(self):
|
|
# Create the world in 7 lines of code...
|
|
lion = Animal.objects.create(common_name="Lion", latin_name="Panthera leo")
|
|
platypus = Animal.objects.create(
|
|
common_name="Platypus", latin_name="Ornithorhynchus anatinus"
|
|
)
|
|
eggplant = Vegetable.objects.create(name="Eggplant", is_yucky=True)
|
|
bacon = Vegetable.objects.create(name="Bacon", is_yucky=False)
|
|
quartz = Mineral.objects.create(name="Quartz", hardness=7)
|
|
|
|
# Objects with declared GenericRelations can be tagged directly -- the
|
|
# API mimics the many-to-many API.
|
|
bacon.tags.create(tag="fatty")
|
|
bacon.tags.create(tag="salty")
|
|
lion.tags.create(tag="yellow")
|
|
lion.tags.create(tag="hairy")
|
|
platypus.tags.create(tag="fatty")
|
|
self.assertQuerysetEqual(lion.tags.all(), [
|
|
"<TaggedItem: hairy>",
|
|
"<TaggedItem: yellow>"
|
|
])
|
|
self.assertQuerysetEqual(bacon.tags.all(), [
|
|
"<TaggedItem: fatty>",
|
|
"<TaggedItem: salty>"
|
|
])
|
|
|
|
# You can easily access the content object like a foreign key.
|
|
t = TaggedItem.objects.get(tag="salty")
|
|
self.assertEqual(t.content_object, bacon)
|
|
|
|
# Recall that the Mineral class doesn't have an explicit GenericRelation
|
|
# defined. That's OK, because you can create TaggedItems explicitly.
|
|
tag1 = TaggedItem.objects.create(content_object=quartz, tag="shiny")
|
|
tag2 = TaggedItem.objects.create(content_object=quartz, tag="clearish")
|
|
|
|
# However, excluding GenericRelations means your lookups have to be a
|
|
# bit more explicit.
|
|
ctype = ContentType.objects.get_for_model(quartz)
|
|
q = TaggedItem.objects.filter(
|
|
content_type__pk=ctype.id, object_id=quartz.id
|
|
)
|
|
self.assertQuerysetEqual(q, [
|
|
"<TaggedItem: clearish>",
|
|
"<TaggedItem: shiny>"
|
|
])
|
|
|
|
# You can set a generic foreign key in the way you'd expect.
|
|
tag1.content_object = platypus
|
|
tag1.save()
|
|
self.assertQuerysetEqual(platypus.tags.all(), [
|
|
"<TaggedItem: fatty>",
|
|
"<TaggedItem: shiny>"
|
|
])
|
|
q = TaggedItem.objects.filter(
|
|
content_type__pk=ctype.id, object_id=quartz.id
|
|
)
|
|
self.assertQuerysetEqual(q, ["<TaggedItem: clearish>"])
|
|
|
|
# Queries across generic relations respect the content types. Even
|
|
# though there are two TaggedItems with a tag of "fatty", this query
|
|
# only pulls out the one with the content type related to Animals.
|
|
self.assertQuerysetEqual(Animal.objects.order_by('common_name'), [
|
|
"<Animal: Lion>",
|
|
"<Animal: Platypus>"
|
|
])
|
|
# Create another fatty tagged instance with different PK to ensure
|
|
# there is a content type restriction in the generated queries below.
|
|
mpk = ManualPK.objects.create(id=lion.pk)
|
|
mpk.tags.create(tag="fatty")
|
|
self.assertQuerysetEqual(Animal.objects.filter(tags__tag='fatty'), [
|
|
"<Animal: Platypus>"
|
|
])
|
|
self.assertQuerysetEqual(Animal.objects.exclude(tags__tag='fatty'), [
|
|
"<Animal: Lion>"
|
|
])
|
|
mpk.delete()
|
|
|
|
# If you delete an object with an explicit Generic relation, the related
|
|
# objects are deleted when the source object is deleted.
|
|
# Original list of tags:
|
|
comp_func = lambda obj: (
|
|
obj.tag, obj.content_type.model_class(), obj.object_id
|
|
)
|
|
|
|
self.assertQuerysetEqual(TaggedItem.objects.all(), [
|
|
('clearish', Mineral, quartz.pk),
|
|
('fatty', Animal, platypus.pk),
|
|
('fatty', Vegetable, bacon.pk),
|
|
('hairy', Animal, lion.pk),
|
|
('salty', Vegetable, bacon.pk),
|
|
('shiny', Animal, platypus.pk),
|
|
('yellow', Animal, lion.pk)
|
|
],
|
|
comp_func
|
|
)
|
|
lion.delete()
|
|
self.assertQuerysetEqual(TaggedItem.objects.all(), [
|
|
('clearish', Mineral, quartz.pk),
|
|
('fatty', Animal, platypus.pk),
|
|
('fatty', Vegetable, bacon.pk),
|
|
('salty', Vegetable, bacon.pk),
|
|
('shiny', Animal, platypus.pk)
|
|
],
|
|
comp_func
|
|
)
|
|
|
|
# If Generic Relation is not explicitly defined, any related objects
|
|
# remain after deletion of the source object.
|
|
quartz_pk = quartz.pk
|
|
quartz.delete()
|
|
self.assertQuerysetEqual(TaggedItem.objects.all(), [
|
|
('clearish', Mineral, quartz_pk),
|
|
('fatty', Animal, platypus.pk),
|
|
('fatty', Vegetable, bacon.pk),
|
|
('salty', Vegetable, bacon.pk),
|
|
('shiny', Animal, platypus.pk)
|
|
],
|
|
comp_func
|
|
)
|
|
# If you delete a tag, the objects using the tag are unaffected
|
|
# (other than losing a tag)
|
|
tag = TaggedItem.objects.order_by("id")[0]
|
|
tag.delete()
|
|
self.assertQuerysetEqual(bacon.tags.all(), ["<TaggedItem: salty>"])
|
|
self.assertQuerysetEqual(TaggedItem.objects.all(), [
|
|
('clearish', Mineral, quartz_pk),
|
|
('fatty', Animal, platypus.pk),
|
|
('salty', Vegetable, bacon.pk),
|
|
('shiny', Animal, platypus.pk)
|
|
],
|
|
comp_func
|
|
)
|
|
TaggedItem.objects.filter(tag='fatty').delete()
|
|
ctype = ContentType.objects.get_for_model(lion)
|
|
self.assertQuerysetEqual(Animal.objects.filter(tags__content_type=ctype), [
|
|
"<Animal: Platypus>"
|
|
])
|
|
|
|
|
|
def test_multiple_gfk(self):
|
|
# Simple tests for multiple GenericForeignKeys
|
|
# only uses one model, since the above tests should be sufficient.
|
|
tiger = Animal.objects.create(common_name="tiger")
|
|
cheetah = Animal.objects.create(common_name="cheetah")
|
|
bear = Animal.objects.create(common_name="bear")
|
|
|
|
# Create directly
|
|
Comparison.objects.create(
|
|
first_obj=cheetah, other_obj=tiger, comparative="faster"
|
|
)
|
|
Comparison.objects.create(
|
|
first_obj=tiger, other_obj=cheetah, comparative="cooler"
|
|
)
|
|
|
|
# Create using GenericRelation
|
|
tiger.comparisons.create(other_obj=bear, comparative="cooler")
|
|
tiger.comparisons.create(other_obj=cheetah, comparative="stronger")
|
|
self.assertQuerysetEqual(cheetah.comparisons.all(), [
|
|
"<Comparison: cheetah is faster than tiger>"
|
|
])
|
|
|
|
# Filtering works
|
|
self.assertQuerysetEqual(tiger.comparisons.filter(comparative="cooler"), [
|
|
"<Comparison: tiger is cooler than cheetah>",
|
|
"<Comparison: tiger is cooler than bear>",
|
|
], ordered=False)
|
|
|
|
# Filtering and deleting works
|
|
subjective = ["cooler"]
|
|
tiger.comparisons.filter(comparative__in=subjective).delete()
|
|
self.assertQuerysetEqual(Comparison.objects.all(), [
|
|
"<Comparison: cheetah is faster than tiger>",
|
|
"<Comparison: tiger is stronger than cheetah>"
|
|
], ordered=False)
|
|
|
|
# If we delete cheetah, Comparisons with cheetah as 'first_obj' will be
|
|
# deleted since Animal has an explicit GenericRelation to Comparison
|
|
# through first_obj. Comparisons with cheetah as 'other_obj' will not
|
|
# be deleted.
|
|
cheetah.delete()
|
|
self.assertQuerysetEqual(Comparison.objects.all(), [
|
|
"<Comparison: tiger is stronger than None>"
|
|
])
|
|
|
|
def test_gfk_subclasses(self):
|
|
# GenericForeignKey should work with subclasses (see #8309)
|
|
quartz = Mineral.objects.create(name="Quartz", hardness=7)
|
|
valuedtag = ValuableTaggedItem.objects.create(
|
|
content_object=quartz, tag="shiny", value=10
|
|
)
|
|
self.assertEqual(valuedtag.content_object, quartz)
|
|
|
|
def test_generic_inline_formsets(self):
|
|
GenericFormSet = generic_inlineformset_factory(TaggedItem, extra=1)
|
|
formset = GenericFormSet()
|
|
self.assertHTMLEqual(''.join(form.as_p() for form in formset.forms), """<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-tag">Tag:</label> <input id="id_generic_relations-taggeditem-content_type-object_id-0-tag" type="text" name="generic_relations-taggeditem-content_type-object_id-0-tag" maxlength="50" /></p>
|
|
<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">Delete:</label> <input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-0-DELETE" id="id_generic_relations-taggeditem-content_type-object_id-0-DELETE" /><input type="hidden" name="generic_relations-taggeditem-content_type-object_id-0-id" id="id_generic_relations-taggeditem-content_type-object_id-0-id" /></p>""")
|
|
|
|
formset = GenericFormSet(instance=Animal())
|
|
self.assertHTMLEqual(''.join(form.as_p() for form in formset.forms), """<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-tag">Tag:</label> <input id="id_generic_relations-taggeditem-content_type-object_id-0-tag" type="text" name="generic_relations-taggeditem-content_type-object_id-0-tag" maxlength="50" /></p>
|
|
<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">Delete:</label> <input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-0-DELETE" id="id_generic_relations-taggeditem-content_type-object_id-0-DELETE" /><input type="hidden" name="generic_relations-taggeditem-content_type-object_id-0-id" id="id_generic_relations-taggeditem-content_type-object_id-0-id" /></p>""")
|
|
|
|
platypus = Animal.objects.create(
|
|
common_name="Platypus", latin_name="Ornithorhynchus anatinus"
|
|
)
|
|
platypus.tags.create(tag="shiny")
|
|
GenericFormSet = generic_inlineformset_factory(TaggedItem, extra=1)
|
|
formset = GenericFormSet(instance=platypus)
|
|
tagged_item_id = TaggedItem.objects.get(
|
|
tag='shiny', object_id=platypus.id
|
|
).id
|
|
self.assertHTMLEqual(''.join(form.as_p() for form in formset.forms), """<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-tag">Tag:</label> <input id="id_generic_relations-taggeditem-content_type-object_id-0-tag" type="text" name="generic_relations-taggeditem-content_type-object_id-0-tag" value="shiny" maxlength="50" /></p>
|
|
<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">Delete:</label> <input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-0-DELETE" id="id_generic_relations-taggeditem-content_type-object_id-0-DELETE" /><input type="hidden" name="generic_relations-taggeditem-content_type-object_id-0-id" value="%s" id="id_generic_relations-taggeditem-content_type-object_id-0-id" /></p><p><label for="id_generic_relations-taggeditem-content_type-object_id-1-tag">Tag:</label> <input id="id_generic_relations-taggeditem-content_type-object_id-1-tag" type="text" name="generic_relations-taggeditem-content_type-object_id-1-tag" maxlength="50" /></p>
|
|
<p><label for="id_generic_relations-taggeditem-content_type-object_id-1-DELETE">Delete:</label> <input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-1-DELETE" id="id_generic_relations-taggeditem-content_type-object_id-1-DELETE" /><input type="hidden" name="generic_relations-taggeditem-content_type-object_id-1-id" id="id_generic_relations-taggeditem-content_type-object_id-1-id" /></p>""" % tagged_item_id)
|
|
|
|
lion = Animal.objects.create(common_name="Lion", latin_name="Panthera leo")
|
|
formset = GenericFormSet(instance=lion, prefix='x')
|
|
self.assertHTMLEqual(''.join(form.as_p() for form in formset.forms), """<p><label for="id_x-0-tag">Tag:</label> <input id="id_x-0-tag" type="text" name="x-0-tag" maxlength="50" /></p>
|
|
<p><label for="id_x-0-DELETE">Delete:</label> <input type="checkbox" name="x-0-DELETE" id="id_x-0-DELETE" /><input type="hidden" name="x-0-id" id="id_x-0-id" /></p>""")
|
|
|
|
def test_gfk_manager(self):
|
|
# GenericForeignKey should not use the default manager (which may filter objects) #16048
|
|
tailless = Gecko.objects.create(has_tail=False)
|
|
tag = TaggedItem.objects.create(content_object=tailless, tag="lizard")
|
|
self.assertEqual(tag.content_object, tailless)
|
|
|
|
def test_subclasses_with_gen_rel(self):
|
|
"""
|
|
Test that concrete model subclasses with generic relations work
|
|
correctly (ticket 11263).
|
|
"""
|
|
granite = Rock.objects.create(name='granite', hardness=5)
|
|
TaggedItem.objects.create(content_object=granite, tag="countertop")
|
|
self.assertEqual(Rock.objects.filter(tags__tag="countertop").count(), 1)
|
|
|
|
def test_generic_inline_formsets_initial(self):
|
|
"""
|
|
Test for #17927 Initial values support for BaseGenericInlineFormSet.
|
|
"""
|
|
quartz = Mineral.objects.create(name="Quartz", hardness=7)
|
|
|
|
GenericFormSet = generic_inlineformset_factory(TaggedItem, extra=1)
|
|
ctype = ContentType.objects.get_for_model(quartz)
|
|
initial_data = [{
|
|
'tag': 'lizard',
|
|
'content_type': ctype.pk,
|
|
'object_id': quartz.pk,
|
|
}]
|
|
formset = GenericFormSet(initial=initial_data)
|
|
self.assertEqual(formset.forms[0].initial, initial_data[0])
|
|
|
|
def test_get_or_create(self):
|
|
# get_or_create should work with virtual fields (content_object)
|
|
quartz = Mineral.objects.create(name="Quartz", hardness=7)
|
|
tag, created = TaggedItem.objects.get_or_create(tag="shiny",
|
|
defaults={'content_object': quartz})
|
|
self.assertTrue(created)
|
|
self.assertEqual(tag.tag, "shiny")
|
|
self.assertEqual(tag.content_object.id, quartz.id)
|
|
|
|
def test_update_or_create_defaults(self):
|
|
# update_or_create should work with virtual fields (content_object)
|
|
quartz = Mineral.objects.create(name="Quartz", hardness=7)
|
|
diamond = Mineral.objects.create(name="Diamond", hardness=7)
|
|
tag, created = TaggedItem.objects.update_or_create(tag="shiny",
|
|
defaults={'content_object': quartz})
|
|
self.assertTrue(created)
|
|
self.assertEqual(tag.content_object.id, quartz.id)
|
|
|
|
tag, created = TaggedItem.objects.update_or_create(tag="shiny",
|
|
defaults={'content_object': diamond})
|
|
self.assertFalse(created)
|
|
self.assertEqual(tag.content_object.id, diamond.id)
|
|
|
|
|
|
class CustomWidget(forms.TextInput):
|
|
pass
|
|
|
|
class TaggedItemForm(forms.ModelForm):
|
|
class Meta:
|
|
model = TaggedItem
|
|
fields = '__all__'
|
|
widgets = {'tag': CustomWidget}
|
|
|
|
class GenericInlineFormsetTest(TestCase):
|
|
def test_generic_inlineformset_factory(self):
|
|
"""
|
|
Regression for #14572: Using base forms with widgets
|
|
defined in Meta should not raise errors.
|
|
"""
|
|
Formset = generic_inlineformset_factory(TaggedItem, TaggedItemForm)
|
|
form = Formset().forms[0]
|
|
self.assertIsInstance(form['tag'].field.widget, CustomWidget)
|
|
|
|
def test_save_new_uses_form_save(self):
|
|
"""
|
|
Regression for #16260: save_new should call form.save()
|
|
"""
|
|
class SaveTestForm(forms.ModelForm):
|
|
def save(self, *args, **kwargs):
|
|
self.instance.saved_by = "custom method"
|
|
return super(SaveTestForm, self).save(*args, **kwargs)
|
|
|
|
Formset = generic_inlineformset_factory(
|
|
ForProxyModelModel, fields='__all__', form=SaveTestForm)
|
|
|
|
instance = ProxyRelatedModel.objects.create()
|
|
|
|
data = {
|
|
'form-TOTAL_FORMS': '1',
|
|
'form-INITIAL_FORMS': '0',
|
|
'form-MAX_NUM_FORMS': '',
|
|
'form-0-title': 'foo',
|
|
}
|
|
|
|
formset = Formset(data, instance=instance, prefix='form')
|
|
self.assertTrue(formset.is_valid())
|
|
new_obj = formset.save()[0]
|
|
self.assertEqual(new_obj.saved_by, "custom method")
|
|
|
|
def test_save_new_for_proxy(self):
|
|
Formset = generic_inlineformset_factory(ForProxyModelModel,
|
|
fields='__all__', for_concrete_model=False)
|
|
|
|
instance = ProxyRelatedModel.objects.create()
|
|
|
|
data = {
|
|
'form-TOTAL_FORMS': '1',
|
|
'form-INITIAL_FORMS': '0',
|
|
'form-MAX_NUM_FORMS': '',
|
|
'form-0-title': 'foo',
|
|
}
|
|
|
|
formset = Formset(data, instance=instance, prefix='form')
|
|
self.assertTrue(formset.is_valid())
|
|
|
|
new_obj, = formset.save()
|
|
self.assertEqual(new_obj.obj, instance)
|
|
|
|
def test_save_new_for_concrete(self):
|
|
Formset = generic_inlineformset_factory(ForProxyModelModel,
|
|
fields='__all__', for_concrete_model=True)
|
|
|
|
instance = ProxyRelatedModel.objects.create()
|
|
|
|
data = {
|
|
'form-TOTAL_FORMS': '1',
|
|
'form-INITIAL_FORMS': '0',
|
|
'form-MAX_NUM_FORMS': '',
|
|
'form-0-title': 'foo',
|
|
}
|
|
|
|
formset = Formset(data, instance=instance, prefix='form')
|
|
self.assertTrue(formset.is_valid())
|
|
|
|
new_obj, = formset.save()
|
|
self.assertNotIsInstance(new_obj.obj, ProxyRelatedModel)
|
|
|
|
|
|
class ProxyRelatedModelTest(TestCase):
|
|
def test_default_behavior(self):
|
|
"""
|
|
The default for for_concrete_model should be True
|
|
"""
|
|
base = ForConcreteModelModel()
|
|
base.obj = rel = ProxyRelatedModel.objects.create()
|
|
base.save()
|
|
|
|
base = ForConcreteModelModel.objects.get(pk=base.pk)
|
|
rel = ConcreteRelatedModel.objects.get(pk=rel.pk)
|
|
self.assertEqual(base.obj, rel)
|
|
|
|
def test_works_normally(self):
|
|
"""
|
|
When for_concrete_model is False, we should still be able to get
|
|
an instance of the concrete class.
|
|
"""
|
|
base = ForProxyModelModel()
|
|
base.obj = rel = ConcreteRelatedModel.objects.create()
|
|
base.save()
|
|
|
|
base = ForProxyModelModel.objects.get(pk=base.pk)
|
|
self.assertEqual(base.obj, rel)
|
|
|
|
def test_proxy_is_returned(self):
|
|
"""
|
|
Instances of the proxy should be returned when
|
|
for_concrete_model is False.
|
|
"""
|
|
base = ForProxyModelModel()
|
|
base.obj = ProxyRelatedModel.objects.create()
|
|
base.save()
|
|
|
|
base = ForProxyModelModel.objects.get(pk=base.pk)
|
|
self.assertIsInstance(base.obj, ProxyRelatedModel)
|
|
|
|
def test_query(self):
|
|
base = ForProxyModelModel()
|
|
base.obj = rel = ConcreteRelatedModel.objects.create()
|
|
base.save()
|
|
|
|
self.assertEqual(rel, ConcreteRelatedModel.objects.get(bases__id=base.id))
|
|
|
|
def test_query_proxy(self):
|
|
base = ForProxyModelModel()
|
|
base.obj = rel = ProxyRelatedModel.objects.create()
|
|
base.save()
|
|
|
|
self.assertEqual(rel, ProxyRelatedModel.objects.get(bases__id=base.id))
|
|
|
|
def test_generic_relation(self):
|
|
base = ForProxyModelModel()
|
|
base.obj = ProxyRelatedModel.objects.create()
|
|
base.save()
|
|
|
|
base = ForProxyModelModel.objects.get(pk=base.pk)
|
|
rel = ProxyRelatedModel.objects.get(pk=base.obj.pk)
|
|
self.assertEqual(base, rel.bases.get())
|
|
|
|
def test_generic_relation_set(self):
|
|
base = ForProxyModelModel()
|
|
base.obj = ConcreteRelatedModel.objects.create()
|
|
base.save()
|
|
newrel = ConcreteRelatedModel.objects.create()
|
|
|
|
newrel.bases = [base]
|
|
newrel = ConcreteRelatedModel.objects.get(pk=newrel.pk)
|
|
self.assertEqual(base, newrel.bases.get())
|