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218 lines
8.4 KiB
Python
218 lines
8.4 KiB
Python
from django.forms.models import ModelForm, inlineformset_factory
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from django.test import TestCase, skipUnlessDBFeature
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from .models import Child, Parent, Poem, Poet, School
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class DeletionTests(TestCase):
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def test_deletion(self):
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PoemFormSet = inlineformset_factory(
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Poet, Poem, can_delete=True, fields="__all__"
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)
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poet = Poet.objects.create(name="test")
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poem = poet.poem_set.create(name="test poem")
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data = {
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"poem_set-TOTAL_FORMS": "1",
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"poem_set-INITIAL_FORMS": "1",
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"poem_set-MAX_NUM_FORMS": "0",
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"poem_set-0-id": str(poem.pk),
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"poem_set-0-poet": str(poet.pk),
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"poem_set-0-name": "test",
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"poem_set-0-DELETE": "on",
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}
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formset = PoemFormSet(data, instance=poet)
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formset.save()
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self.assertTrue(formset.is_valid())
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self.assertEqual(Poem.objects.count(), 0)
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def test_add_form_deletion_when_invalid(self):
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"""
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Make sure that an add form that is filled out, but marked for deletion
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doesn't cause validation errors.
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"""
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PoemFormSet = inlineformset_factory(
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Poet, Poem, can_delete=True, fields="__all__"
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)
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poet = Poet.objects.create(name="test")
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data = {
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"poem_set-TOTAL_FORMS": "1",
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"poem_set-INITIAL_FORMS": "0",
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"poem_set-MAX_NUM_FORMS": "0",
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"poem_set-0-id": "",
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"poem_set-0-poem": "1",
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"poem_set-0-name": "x" * 1000,
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}
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formset = PoemFormSet(data, instance=poet)
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# Make sure this form doesn't pass validation.
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self.assertIs(formset.is_valid(), False)
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self.assertEqual(Poem.objects.count(), 0)
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# Then make sure that it *does* pass validation and delete the object,
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# even though the data isn't actually valid.
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data["poem_set-0-DELETE"] = "on"
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formset = PoemFormSet(data, instance=poet)
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self.assertIs(formset.is_valid(), True)
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formset.save()
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self.assertEqual(Poem.objects.count(), 0)
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def test_change_form_deletion_when_invalid(self):
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"""
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Make sure that a change form that is filled out, but marked for deletion
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doesn't cause validation errors.
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"""
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PoemFormSet = inlineformset_factory(
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Poet, Poem, can_delete=True, fields="__all__"
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)
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poet = Poet.objects.create(name="test")
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poem = poet.poem_set.create(name="test poem")
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data = {
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"poem_set-TOTAL_FORMS": "1",
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"poem_set-INITIAL_FORMS": "1",
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"poem_set-MAX_NUM_FORMS": "0",
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"poem_set-0-id": str(poem.id),
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"poem_set-0-poem": str(poem.id),
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"poem_set-0-name": "x" * 1000,
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}
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formset = PoemFormSet(data, instance=poet)
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# Make sure this form doesn't pass validation.
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self.assertIs(formset.is_valid(), False)
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self.assertEqual(Poem.objects.count(), 1)
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# Then make sure that it *does* pass validation and delete the object,
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# even though the data isn't actually valid.
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data["poem_set-0-DELETE"] = "on"
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formset = PoemFormSet(data, instance=poet)
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self.assertIs(formset.is_valid(), True)
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formset.save()
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self.assertEqual(Poem.objects.count(), 0)
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def test_save_new(self):
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"""
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Make sure inlineformsets respect commit=False
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regression for #10750
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"""
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# exclude some required field from the forms
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ChildFormSet = inlineformset_factory(
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School, Child, exclude=["father", "mother"]
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)
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school = School.objects.create(name="test")
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mother = Parent.objects.create(name="mother")
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father = Parent.objects.create(name="father")
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data = {
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"child_set-TOTAL_FORMS": "1",
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"child_set-INITIAL_FORMS": "0",
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"child_set-MAX_NUM_FORMS": "0",
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"child_set-0-name": "child",
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}
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formset = ChildFormSet(data, instance=school)
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self.assertIs(formset.is_valid(), True)
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objects = formset.save(commit=False)
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for obj in objects:
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obj.mother = mother
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obj.father = father
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obj.save()
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self.assertEqual(school.child_set.count(), 1)
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class InlineFormsetFactoryTest(TestCase):
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def test_inline_formset_factory(self):
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"""
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These should both work without a problem.
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"""
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inlineformset_factory(Parent, Child, fk_name="mother", fields="__all__")
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inlineformset_factory(Parent, Child, fk_name="father", fields="__all__")
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def test_exception_on_unspecified_foreign_key(self):
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"""
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Child has two ForeignKeys to Parent, so if we don't specify which one
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to use for the inline formset, we should get an exception.
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"""
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msg = (
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"'inline_formsets.Child' has more than one ForeignKey to "
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"'inline_formsets.Parent'."
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)
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with self.assertRaisesMessage(ValueError, msg):
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inlineformset_factory(Parent, Child)
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def test_fk_name_not_foreign_key_field_from_child(self):
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"""
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If we specify fk_name, but it isn't a ForeignKey from the child model
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to the parent model, we should get an exception.
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"""
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msg = "fk_name 'school' is not a ForeignKey to 'inline_formsets.Parent'."
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with self.assertRaisesMessage(ValueError, msg):
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inlineformset_factory(Parent, Child, fk_name="school")
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def test_non_foreign_key_field(self):
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"""
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If the field specified in fk_name is not a ForeignKey, we should get an
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exception.
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"""
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with self.assertRaisesMessage(
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ValueError, "'inline_formsets.Child' has no field named 'test'."
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):
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inlineformset_factory(Parent, Child, fk_name="test")
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def test_any_iterable_allowed_as_argument_to_exclude(self):
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# Regression test for #9171.
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inlineformset_factory(Parent, Child, exclude=["school"], fk_name="mother")
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inlineformset_factory(Parent, Child, exclude=("school",), fk_name="mother")
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@skipUnlessDBFeature("allows_auto_pk_0")
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def test_zero_primary_key(self):
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# Regression test for #21472
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poet = Poet.objects.create(id=0, name="test")
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poet.poem_set.create(name="test poem")
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PoemFormSet = inlineformset_factory(Poet, Poem, fields="__all__", extra=0)
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formset = PoemFormSet(None, instance=poet)
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self.assertEqual(len(formset.forms), 1)
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def test_unsaved_fk_validate_unique(self):
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poet = Poet(name="unsaved")
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PoemFormSet = inlineformset_factory(Poet, Poem, fields=["name"])
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data = {
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"poem_set-TOTAL_FORMS": "2",
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"poem_set-INITIAL_FORMS": "0",
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"poem_set-MAX_NUM_FORMS": "2",
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"poem_set-0-name": "Poem",
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"poem_set-1-name": "Poem",
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}
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formset = PoemFormSet(data, instance=poet)
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self.assertFalse(formset.is_valid())
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self.assertEqual(
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formset.non_form_errors(), ["Please correct the duplicate data for name."]
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)
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def test_fk_not_duplicated_in_form_fields(self):
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"""
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A foreign key name isn't duplicated in form._meta fields (#21332).
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"""
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poet = Poet.objects.create(name="test")
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poet.poem_set.create(name="first test poem")
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poet.poem_set.create(name="second test poem")
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poet.poem_set.create(name="third test poem")
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PoemFormSet = inlineformset_factory(Poet, Poem, fields=("name",), extra=0)
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formset = PoemFormSet(None, instance=poet)
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self.assertEqual(len(formset.forms), 3)
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self.assertEqual(["name", "poet"], PoemFormSet.form._meta.fields)
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def test_fk_in_all_formset_forms(self):
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"""
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A foreign key field is in Meta for all forms in the formset (#26538).
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"""
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class PoemModelForm(ModelForm):
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def __init__(self, *args, **kwargs):
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assert "poet" in self._meta.fields
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super().__init__(*args, **kwargs)
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poet = Poet.objects.create(name="test")
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poet.poem_set.create(name="first test poem")
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poet.poem_set.create(name="second test poem")
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PoemFormSet = inlineformset_factory(
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Poet, Poem, form=PoemModelForm, fields=("name",), extra=0
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)
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formset = PoemFormSet(None, instance=poet)
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formset.forms # Trigger form instantiation to run the assert above.
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