2945 lines
116 KiB
Python
2945 lines
116 KiB
Python
import datetime
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import os
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from decimal import Decimal
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from unittest import mock, skipUnless
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from django import forms
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from django.core.exceptions import (
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NON_FIELD_ERRORS, FieldError, ImproperlyConfigured,
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)
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from django.core.files.uploadedfile import SimpleUploadedFile
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from django.core.validators import ValidationError
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from django.db import connection, models
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from django.db.models.query import EmptyQuerySet
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from django.forms.models import (
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ModelFormMetaclass, construct_instance, fields_for_model, model_to_dict,
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modelform_factory,
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)
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from django.template import Context, Template
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from django.test import SimpleTestCase, TestCase, skipUnlessDBFeature
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from .models import (
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Article, ArticleStatus, Author, Author1, Award, BetterWriter, BigInt, Book,
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Category, Character, Colour, ColourfulItem, CustomErrorMessage, CustomFF,
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CustomFieldForExclusionModel, DateTimePost, DerivedBook, DerivedPost,
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Document, ExplicitPK, FilePathModel, FlexibleDatePost, Homepage,
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ImprovedArticle, ImprovedArticleWithParentLink, Inventory,
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NullableUniqueCharFieldModel, Person, Photo, Post, Price, Product,
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Publication, PublicationDefaults, StrictAssignmentAll,
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StrictAssignmentFieldSpecific, Student, StumpJoke, TextFile, Triple,
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Writer, WriterProfile, test_images,
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)
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if test_images:
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from .models import ImageFile, OptionalImageFile, NoExtensionImageFile
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class ImageFileForm(forms.ModelForm):
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class Meta:
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model = ImageFile
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fields = '__all__'
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class OptionalImageFileForm(forms.ModelForm):
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class Meta:
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model = OptionalImageFile
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fields = '__all__'
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class NoExtensionImageFileForm(forms.ModelForm):
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class Meta:
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model = NoExtensionImageFile
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fields = '__all__'
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class ProductForm(forms.ModelForm):
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class Meta:
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model = Product
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fields = '__all__'
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class PriceForm(forms.ModelForm):
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class Meta:
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model = Price
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fields = '__all__'
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class BookForm(forms.ModelForm):
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class Meta:
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model = Book
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fields = '__all__'
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class DerivedBookForm(forms.ModelForm):
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class Meta:
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model = DerivedBook
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fields = '__all__'
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class ExplicitPKForm(forms.ModelForm):
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class Meta:
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model = ExplicitPK
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fields = ('key', 'desc',)
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class PostForm(forms.ModelForm):
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class Meta:
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model = Post
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fields = '__all__'
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class DerivedPostForm(forms.ModelForm):
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class Meta:
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model = DerivedPost
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fields = '__all__'
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class CustomWriterForm(forms.ModelForm):
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name = forms.CharField(required=False)
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class Meta:
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model = Writer
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fields = '__all__'
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class BaseCategoryForm(forms.ModelForm):
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class Meta:
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model = Category
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fields = '__all__'
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class ArticleForm(forms.ModelForm):
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class Meta:
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model = Article
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fields = '__all__'
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class RoykoForm(forms.ModelForm):
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class Meta:
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model = Writer
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fields = '__all__'
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class ArticleStatusForm(forms.ModelForm):
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class Meta:
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model = ArticleStatus
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fields = '__all__'
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class InventoryForm(forms.ModelForm):
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class Meta:
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model = Inventory
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fields = '__all__'
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class SelectInventoryForm(forms.Form):
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items = forms.ModelMultipleChoiceField(Inventory.objects.all(), to_field_name='barcode')
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class CustomFieldForExclusionForm(forms.ModelForm):
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class Meta:
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model = CustomFieldForExclusionModel
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fields = ['name', 'markup']
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class TextFileForm(forms.ModelForm):
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class Meta:
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model = TextFile
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fields = '__all__'
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class BigIntForm(forms.ModelForm):
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class Meta:
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model = BigInt
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fields = '__all__'
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class ModelFormWithMedia(forms.ModelForm):
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class Media:
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js = ('/some/form/javascript',)
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css = {
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'all': ('/some/form/css',)
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}
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class Meta:
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model = TextFile
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fields = '__all__'
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class CustomErrorMessageForm(forms.ModelForm):
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name1 = forms.CharField(error_messages={'invalid': 'Form custom error message.'})
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class Meta:
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fields = '__all__'
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model = CustomErrorMessage
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class ModelFormBaseTest(TestCase):
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def test_base_form(self):
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self.assertEqual(list(BaseCategoryForm.base_fields), ['name', 'slug', 'url'])
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def test_no_model_class(self):
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class NoModelModelForm(forms.ModelForm):
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pass
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with self.assertRaisesMessage(ValueError, 'ModelForm has no model class specified.'):
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NoModelModelForm()
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def test_empty_fields_to_fields_for_model(self):
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"""
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An argument of fields=() to fields_for_model should return an empty dictionary
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"""
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field_dict = fields_for_model(Person, fields=())
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self.assertEqual(len(field_dict), 0)
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def test_empty_fields_on_modelform(self):
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"""
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No fields on a ModelForm should actually result in no fields.
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"""
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class EmptyPersonForm(forms.ModelForm):
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class Meta:
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model = Person
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fields = ()
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form = EmptyPersonForm()
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self.assertEqual(len(form.fields), 0)
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def test_empty_fields_to_construct_instance(self):
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"""
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No fields should be set on a model instance if construct_instance receives fields=().
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"""
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form = modelform_factory(Person, fields="__all__")({'name': 'John Doe'})
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self.assertTrue(form.is_valid())
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instance = construct_instance(form, Person(), fields=())
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self.assertEqual(instance.name, '')
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def test_blank_with_null_foreign_key_field(self):
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"""
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#13776 -- ModelForm's with models having a FK set to null=False and
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required=False should be valid.
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"""
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class FormForTestingIsValid(forms.ModelForm):
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class Meta:
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model = Student
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fields = '__all__'
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.fields['character'].required = False
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char = Character.objects.create(username='user', last_action=datetime.datetime.today())
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data = {'study': 'Engineering'}
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data2 = {'study': 'Engineering', 'character': char.pk}
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# form is valid because required=False for field 'character'
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f1 = FormForTestingIsValid(data)
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self.assertTrue(f1.is_valid())
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f2 = FormForTestingIsValid(data2)
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self.assertTrue(f2.is_valid())
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obj = f2.save()
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self.assertEqual(obj.character, char)
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def test_blank_false_with_null_true_foreign_key_field(self):
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"""
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A ModelForm with a model having ForeignKey(blank=False, null=True)
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and the form field set to required=False should allow the field to be
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unset.
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"""
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class AwardForm(forms.ModelForm):
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class Meta:
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model = Award
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fields = '__all__'
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.fields['character'].required = False
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character = Character.objects.create(username='user', last_action=datetime.datetime.today())
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award = Award.objects.create(name='Best sprinter', character=character)
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data = {'name': 'Best tester', 'character': ''} # remove character
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form = AwardForm(data=data, instance=award)
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self.assertTrue(form.is_valid())
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award = form.save()
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self.assertIsNone(award.character)
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def test_save_blank_false_with_required_false(self):
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"""
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A ModelForm with a model with a field set to blank=False and the form
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field set to required=False should allow the field to be unset.
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"""
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obj = Writer.objects.create(name='test')
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form = CustomWriterForm(data={'name': ''}, instance=obj)
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self.assertTrue(form.is_valid())
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obj = form.save()
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self.assertEqual(obj.name, '')
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def test_save_blank_null_unique_charfield_saves_null(self):
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form_class = modelform_factory(model=NullableUniqueCharFieldModel, fields=['codename'])
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empty_value = '' if connection.features.interprets_empty_strings_as_nulls else None
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form = form_class(data={'codename': ''})
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self.assertTrue(form.is_valid())
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form.save()
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self.assertEqual(form.instance.codename, empty_value)
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# Save a second form to verify there isn't a unique constraint violation.
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form = form_class(data={'codename': ''})
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self.assertTrue(form.is_valid())
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form.save()
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self.assertEqual(form.instance.codename, empty_value)
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def test_missing_fields_attribute(self):
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message = (
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"Creating a ModelForm without either the 'fields' attribute "
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"or the 'exclude' attribute is prohibited; form "
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"MissingFieldsForm needs updating."
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)
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with self.assertRaisesMessage(ImproperlyConfigured, message):
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class MissingFieldsForm(forms.ModelForm):
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class Meta:
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model = Category
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def test_extra_fields(self):
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class ExtraFields(BaseCategoryForm):
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some_extra_field = forms.BooleanField()
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self.assertEqual(list(ExtraFields.base_fields),
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['name', 'slug', 'url', 'some_extra_field'])
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def test_extra_field_model_form(self):
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with self.assertRaisesMessage(FieldError, 'no-field'):
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class ExtraPersonForm(forms.ModelForm):
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""" ModelForm with an extra field """
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age = forms.IntegerField()
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class Meta:
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model = Person
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fields = ('name', 'no-field')
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def test_extra_declared_field_model_form(self):
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class ExtraPersonForm(forms.ModelForm):
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""" ModelForm with an extra field """
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age = forms.IntegerField()
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class Meta:
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model = Person
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fields = ('name', 'age')
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def test_extra_field_modelform_factory(self):
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with self.assertRaisesMessage(FieldError, 'Unknown field(s) (no-field) specified for Person'):
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modelform_factory(Person, fields=['no-field', 'name'])
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def test_replace_field(self):
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class ReplaceField(forms.ModelForm):
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url = forms.BooleanField()
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class Meta:
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model = Category
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fields = '__all__'
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self.assertIsInstance(ReplaceField.base_fields['url'], forms.fields.BooleanField)
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def test_replace_field_variant_2(self):
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# Should have the same result as before,
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# but 'fields' attribute specified differently
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class ReplaceField(forms.ModelForm):
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url = forms.BooleanField()
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class Meta:
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model = Category
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fields = ['url']
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self.assertIsInstance(ReplaceField.base_fields['url'], forms.fields.BooleanField)
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def test_replace_field_variant_3(self):
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# Should have the same result as before,
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# but 'fields' attribute specified differently
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class ReplaceField(forms.ModelForm):
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url = forms.BooleanField()
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class Meta:
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model = Category
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fields = [] # url will still appear, since it is explicit above
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self.assertIsInstance(ReplaceField.base_fields['url'], forms.fields.BooleanField)
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def test_override_field(self):
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class WriterForm(forms.ModelForm):
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book = forms.CharField(required=False)
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class Meta:
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model = Writer
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fields = '__all__'
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wf = WriterForm({'name': 'Richard Lockridge'})
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self.assertTrue(wf.is_valid())
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def test_limit_nonexistent_field(self):
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expected_msg = 'Unknown field(s) (nonexistent) specified for Category'
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with self.assertRaisesMessage(FieldError, expected_msg):
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class InvalidCategoryForm(forms.ModelForm):
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class Meta:
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model = Category
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fields = ['nonexistent']
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def test_limit_fields_with_string(self):
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expected_msg = "CategoryForm.Meta.fields cannot be a string. Did you mean to type: ('url',)?"
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with self.assertRaisesMessage(TypeError, expected_msg):
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class CategoryForm(forms.ModelForm):
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class Meta:
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model = Category
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fields = ('url') # note the missing comma
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def test_exclude_fields(self):
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class ExcludeFields(forms.ModelForm):
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class Meta:
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model = Category
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exclude = ['url']
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self.assertEqual(list(ExcludeFields.base_fields), ['name', 'slug'])
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def test_exclude_nonexistent_field(self):
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class ExcludeFields(forms.ModelForm):
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class Meta:
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model = Category
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exclude = ['nonexistent']
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self.assertEqual(list(ExcludeFields.base_fields), ['name', 'slug', 'url'])
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def test_exclude_fields_with_string(self):
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expected_msg = "CategoryForm.Meta.exclude cannot be a string. Did you mean to type: ('url',)?"
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with self.assertRaisesMessage(TypeError, expected_msg):
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class CategoryForm(forms.ModelForm):
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class Meta:
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model = Category
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exclude = ('url') # note the missing comma
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def test_exclude_and_validation(self):
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# This Price instance generated by this form is not valid because the quantity
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# field is required, but the form is valid because the field is excluded from
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# the form. This is for backwards compatibility.
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class PriceFormWithoutQuantity(forms.ModelForm):
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class Meta:
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model = Price
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exclude = ('quantity',)
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form = PriceFormWithoutQuantity({'price': '6.00'})
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self.assertTrue(form.is_valid())
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price = form.save(commit=False)
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msg = "{'quantity': ['This field cannot be null.']}"
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with self.assertRaisesMessage(ValidationError, msg):
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price.full_clean()
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# The form should not validate fields that it doesn't contain even if they are
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# specified using 'fields', not 'exclude'.
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class PriceFormWithoutQuantity(forms.ModelForm):
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class Meta:
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model = Price
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fields = ('price',)
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form = PriceFormWithoutQuantity({'price': '6.00'})
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self.assertTrue(form.is_valid())
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# The form should still have an instance of a model that is not complete and
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# not saved into a DB yet.
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self.assertEqual(form.instance.price, Decimal('6.00'))
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self.assertIsNone(form.instance.quantity)
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self.assertIsNone(form.instance.pk)
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def test_confused_form(self):
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class ConfusedForm(forms.ModelForm):
|
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""" Using 'fields' *and* 'exclude'. Not sure why you'd want to do
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this, but uh, "be liberal in what you accept" and all.
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"""
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class Meta:
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model = Category
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fields = ['name', 'url']
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exclude = ['url']
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self.assertEqual(list(ConfusedForm.base_fields),
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['name'])
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|
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def test_mixmodel_form(self):
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class MixModelForm(BaseCategoryForm):
|
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""" Don't allow more than one 'model' definition in the
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inheritance hierarchy. Technically, it would generate a valid
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form, but the fact that the resulting save method won't deal with
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multiple objects is likely to trip up people not familiar with the
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mechanics.
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"""
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class Meta:
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model = Article
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fields = '__all__'
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# MixModelForm is now an Article-related thing, because MixModelForm.Meta
|
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# overrides BaseCategoryForm.Meta.
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self.assertEqual(
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list(MixModelForm.base_fields),
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['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
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)
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|
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def test_article_form(self):
|
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self.assertEqual(
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list(ArticleForm.base_fields),
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['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
|
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)
|
|
|
|
def test_bad_form(self):
|
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# First class with a Meta class wins...
|
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class BadForm(ArticleForm, BaseCategoryForm):
|
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pass
|
|
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self.assertEqual(
|
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list(BadForm.base_fields),
|
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['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
|
|
)
|
|
|
|
def test_invalid_meta_model(self):
|
|
class InvalidModelForm(forms.ModelForm):
|
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class Meta:
|
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pass # no model
|
|
|
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# Can't create new form
|
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msg = 'ModelForm has no model class specified.'
|
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with self.assertRaisesMessage(ValueError, msg):
|
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InvalidModelForm()
|
|
|
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# Even if you provide a model instance
|
|
with self.assertRaisesMessage(ValueError, msg):
|
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InvalidModelForm(instance=Category)
|
|
|
|
def test_subcategory_form(self):
|
|
class SubCategoryForm(BaseCategoryForm):
|
|
""" Subclassing without specifying a Meta on the class will use
|
|
the parent's Meta (or the first parent in the MRO if there are
|
|
multiple parent classes).
|
|
"""
|
|
pass
|
|
|
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self.assertEqual(list(SubCategoryForm.base_fields), ['name', 'slug', 'url'])
|
|
|
|
def test_subclassmeta_form(self):
|
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class SomeCategoryForm(forms.ModelForm):
|
|
checkbox = forms.BooleanField()
|
|
|
|
class Meta:
|
|
model = Category
|
|
fields = '__all__'
|
|
|
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class SubclassMeta(SomeCategoryForm):
|
|
""" We can also subclass the Meta inner class to change the fields
|
|
list.
|
|
"""
|
|
class Meta(SomeCategoryForm.Meta):
|
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exclude = ['url']
|
|
|
|
self.assertHTMLEqual(
|
|
str(SubclassMeta()),
|
|
"""<tr><th><label for="id_name">Name:</label></th>
|
|
<td><input id="id_name" type="text" name="name" maxlength="20" required></td></tr>
|
|
<tr><th><label for="id_slug">Slug:</label></th>
|
|
<td><input id="id_slug" type="text" name="slug" maxlength="20" required></td></tr>
|
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<tr><th><label for="id_checkbox">Checkbox:</label></th>
|
|
<td><input type="checkbox" name="checkbox" id="id_checkbox" required></td></tr>"""
|
|
)
|
|
|
|
def test_orderfields_form(self):
|
|
class OrderFields(forms.ModelForm):
|
|
class Meta:
|
|
model = Category
|
|
fields = ['url', 'name']
|
|
|
|
self.assertEqual(list(OrderFields.base_fields),
|
|
['url', 'name'])
|
|
self.assertHTMLEqual(
|
|
str(OrderFields()),
|
|
"""<tr><th><label for="id_url">The URL:</label></th>
|
|
<td><input id="id_url" type="text" name="url" maxlength="40" required></td></tr>
|
|
<tr><th><label for="id_name">Name:</label></th>
|
|
<td><input id="id_name" type="text" name="name" maxlength="20" required></td></tr>"""
|
|
)
|
|
|
|
def test_orderfields2_form(self):
|
|
class OrderFields2(forms.ModelForm):
|
|
class Meta:
|
|
model = Category
|
|
fields = ['slug', 'url', 'name']
|
|
exclude = ['url']
|
|
|
|
self.assertEqual(list(OrderFields2.base_fields), ['slug', 'name'])
|
|
|
|
def test_default_populated_on_optional_field(self):
|
|
class PubForm(forms.ModelForm):
|
|
mode = forms.CharField(max_length=255, required=False)
|
|
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('mode',)
|
|
|
|
# Empty data uses the model field default.
|
|
mf1 = PubForm({})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertEqual(m1.mode, 'di')
|
|
self.assertEqual(m1._meta.get_field('mode').get_default(), 'di')
|
|
|
|
# Blank data doesn't use the model field default.
|
|
mf2 = PubForm({'mode': ''})
|
|
self.assertEqual(mf2.errors, {})
|
|
m2 = mf2.save(commit=False)
|
|
self.assertEqual(m2.mode, '')
|
|
|
|
def test_default_not_populated_on_non_empty_value_in_cleaned_data(self):
|
|
class PubForm(forms.ModelForm):
|
|
mode = forms.CharField(max_length=255, required=False)
|
|
mocked_mode = None
|
|
|
|
def clean(self):
|
|
self.cleaned_data['mode'] = self.mocked_mode
|
|
return self.cleaned_data
|
|
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('mode',)
|
|
|
|
pub_form = PubForm({})
|
|
pub_form.mocked_mode = 'de'
|
|
pub = pub_form.save(commit=False)
|
|
self.assertEqual(pub.mode, 'de')
|
|
# Default should be populated on an empty value in cleaned_data.
|
|
default_mode = 'di'
|
|
for empty_value in pub_form.fields['mode'].empty_values:
|
|
with self.subTest(empty_value=empty_value):
|
|
pub_form = PubForm({})
|
|
pub_form.mocked_mode = empty_value
|
|
pub = pub_form.save(commit=False)
|
|
self.assertEqual(pub.mode, default_mode)
|
|
|
|
def test_default_not_populated_on_optional_checkbox_input(self):
|
|
class PubForm(forms.ModelForm):
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('active',)
|
|
|
|
# Empty data doesn't use the model default because CheckboxInput
|
|
# doesn't have a value in HTML form submission.
|
|
mf1 = PubForm({})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertIs(m1.active, False)
|
|
self.assertIsInstance(mf1.fields['active'].widget, forms.CheckboxInput)
|
|
self.assertIs(m1._meta.get_field('active').get_default(), True)
|
|
|
|
def test_default_not_populated_on_checkboxselectmultiple(self):
|
|
class PubForm(forms.ModelForm):
|
|
mode = forms.CharField(required=False, widget=forms.CheckboxSelectMultiple)
|
|
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('mode',)
|
|
|
|
# Empty data doesn't use the model default because an unchecked
|
|
# CheckboxSelectMultiple doesn't have a value in HTML form submission.
|
|
mf1 = PubForm({})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertEqual(m1.mode, '')
|
|
self.assertEqual(m1._meta.get_field('mode').get_default(), 'di')
|
|
|
|
def test_default_not_populated_on_selectmultiple(self):
|
|
class PubForm(forms.ModelForm):
|
|
mode = forms.CharField(required=False, widget=forms.SelectMultiple)
|
|
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('mode',)
|
|
|
|
# Empty data doesn't use the model default because an unselected
|
|
# SelectMultiple doesn't have a value in HTML form submission.
|
|
mf1 = PubForm({})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertEqual(m1.mode, '')
|
|
self.assertEqual(m1._meta.get_field('mode').get_default(), 'di')
|
|
|
|
def test_prefixed_form_with_default_field(self):
|
|
class PubForm(forms.ModelForm):
|
|
prefix = 'form-prefix'
|
|
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('mode',)
|
|
|
|
mode = 'de'
|
|
self.assertNotEqual(mode, PublicationDefaults._meta.get_field('mode').get_default())
|
|
|
|
mf1 = PubForm({'form-prefix-mode': mode})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertEqual(m1.mode, mode)
|
|
|
|
def test_renderer_kwarg(self):
|
|
custom = object()
|
|
self.assertIs(ProductForm(renderer=custom).renderer, custom)
|
|
|
|
def test_default_splitdatetime_field(self):
|
|
class PubForm(forms.ModelForm):
|
|
datetime_published = forms.SplitDateTimeField(required=False)
|
|
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('datetime_published',)
|
|
|
|
mf1 = PubForm({})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertEqual(m1.datetime_published, datetime.datetime(2000, 1, 1))
|
|
|
|
mf2 = PubForm({'datetime_published_0': '2010-01-01', 'datetime_published_1': '0:00:00'})
|
|
self.assertEqual(mf2.errors, {})
|
|
m2 = mf2.save(commit=False)
|
|
self.assertEqual(m2.datetime_published, datetime.datetime(2010, 1, 1))
|
|
|
|
def test_default_filefield(self):
|
|
class PubForm(forms.ModelForm):
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('file',)
|
|
|
|
mf1 = PubForm({})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertEqual(m1.file.name, 'default.txt')
|
|
|
|
mf2 = PubForm({}, {'file': SimpleUploadedFile('name', b'foo')})
|
|
self.assertEqual(mf2.errors, {})
|
|
m2 = mf2.save(commit=False)
|
|
self.assertEqual(m2.file.name, 'name')
|
|
|
|
def test_default_selectdatewidget(self):
|
|
class PubForm(forms.ModelForm):
|
|
date_published = forms.DateField(required=False, widget=forms.SelectDateWidget)
|
|
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('date_published',)
|
|
|
|
mf1 = PubForm({})
|
|
self.assertEqual(mf1.errors, {})
|
|
m1 = mf1.save(commit=False)
|
|
self.assertEqual(m1.date_published, datetime.date.today())
|
|
|
|
mf2 = PubForm({'date_published_year': '2010', 'date_published_month': '1', 'date_published_day': '1'})
|
|
self.assertEqual(mf2.errors, {})
|
|
m2 = mf2.save(commit=False)
|
|
self.assertEqual(m2.date_published, datetime.date(2010, 1, 1))
|
|
|
|
|
|
class FieldOverridesByFormMetaForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Category
|
|
fields = ['name', 'url', 'slug']
|
|
widgets = {
|
|
'name': forms.Textarea,
|
|
'url': forms.TextInput(attrs={'class': 'url'})
|
|
}
|
|
labels = {
|
|
'name': 'Title',
|
|
}
|
|
help_texts = {
|
|
'slug': 'Watch out! Letters, numbers, underscores and hyphens only.',
|
|
}
|
|
error_messages = {
|
|
'slug': {
|
|
'invalid': (
|
|
"Didn't you read the help text? "
|
|
"We said letters, numbers, underscores and hyphens only!"
|
|
)
|
|
}
|
|
}
|
|
field_classes = {
|
|
'url': forms.URLField,
|
|
}
|
|
|
|
|
|
class TestFieldOverridesByFormMeta(SimpleTestCase):
|
|
def test_widget_overrides(self):
|
|
form = FieldOverridesByFormMetaForm()
|
|
self.assertHTMLEqual(
|
|
str(form['name']),
|
|
'<textarea id="id_name" rows="10" cols="40" name="name" maxlength="20" required></textarea>',
|
|
)
|
|
self.assertHTMLEqual(
|
|
str(form['url']),
|
|
'<input id="id_url" type="text" class="url" name="url" maxlength="40" required>',
|
|
)
|
|
self.assertHTMLEqual(
|
|
str(form['slug']),
|
|
'<input id="id_slug" type="text" name="slug" maxlength="20" required>',
|
|
)
|
|
|
|
def test_label_overrides(self):
|
|
form = FieldOverridesByFormMetaForm()
|
|
self.assertHTMLEqual(
|
|
str(form['name'].label_tag()),
|
|
'<label for="id_name">Title:</label>',
|
|
)
|
|
self.assertHTMLEqual(
|
|
str(form['url'].label_tag()),
|
|
'<label for="id_url">The URL:</label>',
|
|
)
|
|
self.assertHTMLEqual(
|
|
str(form['slug'].label_tag()),
|
|
'<label for="id_slug">Slug:</label>',
|
|
)
|
|
|
|
def test_help_text_overrides(self):
|
|
form = FieldOverridesByFormMetaForm()
|
|
self.assertEqual(
|
|
form['slug'].help_text,
|
|
'Watch out! Letters, numbers, underscores and hyphens only.',
|
|
)
|
|
|
|
def test_error_messages_overrides(self):
|
|
form = FieldOverridesByFormMetaForm(data={
|
|
'name': 'Category',
|
|
'url': 'http://www.example.com/category/',
|
|
'slug': '!%#*@',
|
|
})
|
|
form.full_clean()
|
|
|
|
error = [
|
|
"Didn't you read the help text? "
|
|
"We said letters, numbers, underscores and hyphens only!",
|
|
]
|
|
self.assertEqual(form.errors, {'slug': error})
|
|
|
|
def test_field_type_overrides(self):
|
|
form = FieldOverridesByFormMetaForm()
|
|
self.assertIs(Category._meta.get_field('url').__class__, models.CharField)
|
|
self.assertIsInstance(form.fields['url'], forms.URLField)
|
|
|
|
|
|
class IncompleteCategoryFormWithFields(forms.ModelForm):
|
|
"""
|
|
A form that replaces the model's url field with a custom one. This should
|
|
prevent the model field's validation from being called.
|
|
"""
|
|
url = forms.CharField(required=False)
|
|
|
|
class Meta:
|
|
fields = ('name', 'slug')
|
|
model = Category
|
|
|
|
|
|
class IncompleteCategoryFormWithExclude(forms.ModelForm):
|
|
"""
|
|
A form that replaces the model's url field with a custom one. This should
|
|
prevent the model field's validation from being called.
|
|
"""
|
|
url = forms.CharField(required=False)
|
|
|
|
class Meta:
|
|
exclude = ['url']
|
|
model = Category
|
|
|
|
|
|
class ValidationTest(SimpleTestCase):
|
|
def test_validates_with_replaced_field_not_specified(self):
|
|
form = IncompleteCategoryFormWithFields(data={'name': 'some name', 'slug': 'some-slug'})
|
|
assert form.is_valid()
|
|
|
|
def test_validates_with_replaced_field_excluded(self):
|
|
form = IncompleteCategoryFormWithExclude(data={'name': 'some name', 'slug': 'some-slug'})
|
|
assert form.is_valid()
|
|
|
|
def test_notrequired_overrides_notblank(self):
|
|
form = CustomWriterForm({})
|
|
assert form.is_valid()
|
|
|
|
|
|
class UniqueTest(TestCase):
|
|
"""
|
|
unique/unique_together validation.
|
|
"""
|
|
@classmethod
|
|
def setUpTestData(cls):
|
|
cls.writer = Writer.objects.create(name='Mike Royko')
|
|
|
|
def test_simple_unique(self):
|
|
form = ProductForm({'slug': 'teddy-bear-blue'})
|
|
self.assertTrue(form.is_valid())
|
|
obj = form.save()
|
|
form = ProductForm({'slug': 'teddy-bear-blue'})
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['slug'], ['Product with this Slug already exists.'])
|
|
form = ProductForm({'slug': 'teddy-bear-blue'}, instance=obj)
|
|
self.assertTrue(form.is_valid())
|
|
|
|
def test_unique_together(self):
|
|
"""ModelForm test of unique_together constraint"""
|
|
form = PriceForm({'price': '6.00', 'quantity': '1'})
|
|
self.assertTrue(form.is_valid())
|
|
form.save()
|
|
form = PriceForm({'price': '6.00', 'quantity': '1'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['__all__'], ['Price with this Price and Quantity already exists.'])
|
|
|
|
def test_unique_together_exclusion(self):
|
|
"""
|
|
Forms don't validate unique_together constraints when only part of the
|
|
constraint is included in the form's fields. This allows using
|
|
form.save(commit=False) and then assigning the missing field(s) to the
|
|
model instance.
|
|
"""
|
|
class BookForm(forms.ModelForm):
|
|
class Meta:
|
|
model = DerivedBook
|
|
fields = ('isbn', 'suffix1')
|
|
|
|
# The unique_together is on suffix1/suffix2 but only suffix1 is part
|
|
# of the form. The fields must have defaults, otherwise they'll be
|
|
# skipped by other logic.
|
|
self.assertEqual(DerivedBook._meta.unique_together, (('suffix1', 'suffix2'),))
|
|
for name in ('suffix1', 'suffix2'):
|
|
with self.subTest(name=name):
|
|
field = DerivedBook._meta.get_field(name)
|
|
self.assertEqual(field.default, 0)
|
|
|
|
# The form fails validation with "Derived book with this Suffix1 and
|
|
# Suffix2 already exists." if the unique_together validation isn't
|
|
# skipped.
|
|
DerivedBook.objects.create(isbn='12345')
|
|
form = BookForm({'isbn': '56789', 'suffix1': '0'})
|
|
self.assertTrue(form.is_valid(), form.errors)
|
|
|
|
def test_multiple_field_unique_together(self):
|
|
"""
|
|
When the same field is involved in multiple unique_together
|
|
constraints, we need to make sure we don't remove the data for it
|
|
before doing all the validation checking (not just failing after
|
|
the first one).
|
|
"""
|
|
class TripleForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Triple
|
|
fields = '__all__'
|
|
|
|
Triple.objects.create(left=1, middle=2, right=3)
|
|
|
|
form = TripleForm({'left': '1', 'middle': '2', 'right': '3'})
|
|
self.assertFalse(form.is_valid())
|
|
|
|
form = TripleForm({'left': '1', 'middle': '3', 'right': '1'})
|
|
self.assertTrue(form.is_valid())
|
|
|
|
@skipUnlessDBFeature('supports_nullable_unique_constraints')
|
|
def test_unique_null(self):
|
|
title = 'I May Be Wrong But I Doubt It'
|
|
form = BookForm({'title': title, 'author': self.writer.pk})
|
|
self.assertTrue(form.is_valid())
|
|
form.save()
|
|
form = BookForm({'title': title, 'author': self.writer.pk})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['__all__'], ['Book with this Title and Author already exists.'])
|
|
form = BookForm({'title': title})
|
|
self.assertTrue(form.is_valid())
|
|
form.save()
|
|
form = BookForm({'title': title})
|
|
self.assertTrue(form.is_valid())
|
|
|
|
def test_inherited_unique(self):
|
|
title = 'Boss'
|
|
Book.objects.create(title=title, author=self.writer, special_id=1)
|
|
form = DerivedBookForm({'title': 'Other', 'author': self.writer.pk, 'special_id': '1', 'isbn': '12345'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['special_id'], ['Book with this Special id already exists.'])
|
|
|
|
def test_inherited_unique_together(self):
|
|
title = 'Boss'
|
|
form = BookForm({'title': title, 'author': self.writer.pk})
|
|
self.assertTrue(form.is_valid())
|
|
form.save()
|
|
form = DerivedBookForm({'title': title, 'author': self.writer.pk, 'isbn': '12345'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['__all__'], ['Book with this Title and Author already exists.'])
|
|
|
|
def test_abstract_inherited_unique(self):
|
|
title = 'Boss'
|
|
isbn = '12345'
|
|
DerivedBook.objects.create(title=title, author=self.writer, isbn=isbn)
|
|
form = DerivedBookForm({
|
|
'title': 'Other', 'author': self.writer.pk, 'isbn': isbn,
|
|
'suffix1': '1', 'suffix2': '2',
|
|
})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['isbn'], ['Derived book with this Isbn already exists.'])
|
|
|
|
def test_abstract_inherited_unique_together(self):
|
|
title = 'Boss'
|
|
isbn = '12345'
|
|
DerivedBook.objects.create(title=title, author=self.writer, isbn=isbn)
|
|
form = DerivedBookForm({
|
|
'title': 'Other',
|
|
'author': self.writer.pk,
|
|
'isbn': '9876',
|
|
'suffix1': '0',
|
|
'suffix2': '0'
|
|
})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(
|
|
form.errors['__all__'],
|
|
['Derived book with this Suffix1 and Suffix2 already exists.'],
|
|
)
|
|
|
|
def test_explicitpk_unspecified(self):
|
|
"""Test for primary_key being in the form and failing validation."""
|
|
form = ExplicitPKForm({'key': '', 'desc': ''})
|
|
self.assertFalse(form.is_valid())
|
|
|
|
def test_explicitpk_unique(self):
|
|
"""Ensure keys and blank character strings are tested for uniqueness."""
|
|
form = ExplicitPKForm({'key': 'key1', 'desc': ''})
|
|
self.assertTrue(form.is_valid())
|
|
form.save()
|
|
form = ExplicitPKForm({'key': 'key1', 'desc': ''})
|
|
self.assertFalse(form.is_valid())
|
|
if connection.features.interprets_empty_strings_as_nulls:
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['key'], ['Explicit pk with this Key already exists.'])
|
|
else:
|
|
self.assertEqual(len(form.errors), 3)
|
|
self.assertEqual(form.errors['__all__'], ['Explicit pk with this Key and Desc already exists.'])
|
|
self.assertEqual(form.errors['desc'], ['Explicit pk with this Desc already exists.'])
|
|
self.assertEqual(form.errors['key'], ['Explicit pk with this Key already exists.'])
|
|
|
|
def test_unique_for_date(self):
|
|
p = Post.objects.create(
|
|
title="Django 1.0 is released", slug="Django 1.0",
|
|
subtitle="Finally", posted=datetime.date(2008, 9, 3),
|
|
)
|
|
form = PostForm({'title': "Django 1.0 is released", 'posted': '2008-09-03'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['title'], ['Title must be unique for Posted date.'])
|
|
form = PostForm({'title': "Work on Django 1.1 begins", 'posted': '2008-09-03'})
|
|
self.assertTrue(form.is_valid())
|
|
form = PostForm({'title': "Django 1.0 is released", 'posted': '2008-09-04'})
|
|
self.assertTrue(form.is_valid())
|
|
form = PostForm({'slug': "Django 1.0", 'posted': '2008-01-01'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['slug'], ['Slug must be unique for Posted year.'])
|
|
form = PostForm({'subtitle': "Finally", 'posted': '2008-09-30'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(form.errors['subtitle'], ['Subtitle must be unique for Posted month.'])
|
|
data = {'subtitle': "Finally", "title": "Django 1.0 is released", "slug": "Django 1.0", 'posted': '2008-09-03'}
|
|
form = PostForm(data, instance=p)
|
|
self.assertTrue(form.is_valid())
|
|
form = PostForm({'title': "Django 1.0 is released"})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['posted'], ['This field is required.'])
|
|
|
|
def test_unique_for_date_in_exclude(self):
|
|
"""
|
|
If the date for unique_for_* constraints is excluded from the
|
|
ModelForm (in this case 'posted' has editable=False, then the
|
|
constraint should be ignored.
|
|
"""
|
|
class DateTimePostForm(forms.ModelForm):
|
|
class Meta:
|
|
model = DateTimePost
|
|
fields = '__all__'
|
|
|
|
DateTimePost.objects.create(
|
|
title="Django 1.0 is released", slug="Django 1.0",
|
|
subtitle="Finally", posted=datetime.datetime(2008, 9, 3, 10, 10, 1),
|
|
)
|
|
# 'title' has unique_for_date='posted'
|
|
form = DateTimePostForm({'title': "Django 1.0 is released", 'posted': '2008-09-03'})
|
|
self.assertTrue(form.is_valid())
|
|
# 'slug' has unique_for_year='posted'
|
|
form = DateTimePostForm({'slug': "Django 1.0", 'posted': '2008-01-01'})
|
|
self.assertTrue(form.is_valid())
|
|
# 'subtitle' has unique_for_month='posted'
|
|
form = DateTimePostForm({'subtitle': "Finally", 'posted': '2008-09-30'})
|
|
self.assertTrue(form.is_valid())
|
|
|
|
def test_inherited_unique_for_date(self):
|
|
p = Post.objects.create(
|
|
title="Django 1.0 is released", slug="Django 1.0",
|
|
subtitle="Finally", posted=datetime.date(2008, 9, 3),
|
|
)
|
|
form = DerivedPostForm({'title': "Django 1.0 is released", 'posted': '2008-09-03'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['title'], ['Title must be unique for Posted date.'])
|
|
form = DerivedPostForm({'title': "Work on Django 1.1 begins", 'posted': '2008-09-03'})
|
|
self.assertTrue(form.is_valid())
|
|
form = DerivedPostForm({'title': "Django 1.0 is released", 'posted': '2008-09-04'})
|
|
self.assertTrue(form.is_valid())
|
|
form = DerivedPostForm({'slug': "Django 1.0", 'posted': '2008-01-01'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['slug'], ['Slug must be unique for Posted year.'])
|
|
form = DerivedPostForm({'subtitle': "Finally", 'posted': '2008-09-30'})
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(form.errors['subtitle'], ['Subtitle must be unique for Posted month.'])
|
|
data = {'subtitle': "Finally", "title": "Django 1.0 is released", "slug": "Django 1.0", 'posted': '2008-09-03'}
|
|
form = DerivedPostForm(data, instance=p)
|
|
self.assertTrue(form.is_valid())
|
|
|
|
def test_unique_for_date_with_nullable_date(self):
|
|
class FlexDatePostForm(forms.ModelForm):
|
|
class Meta:
|
|
model = FlexibleDatePost
|
|
fields = '__all__'
|
|
|
|
p = FlexibleDatePost.objects.create(
|
|
title="Django 1.0 is released", slug="Django 1.0",
|
|
subtitle="Finally", posted=datetime.date(2008, 9, 3),
|
|
)
|
|
|
|
form = FlexDatePostForm({'title': "Django 1.0 is released"})
|
|
self.assertTrue(form.is_valid())
|
|
form = FlexDatePostForm({'slug': "Django 1.0"})
|
|
self.assertTrue(form.is_valid())
|
|
form = FlexDatePostForm({'subtitle': "Finally"})
|
|
self.assertTrue(form.is_valid())
|
|
data = {'subtitle': "Finally", "title": "Django 1.0 is released", "slug": "Django 1.0"}
|
|
form = FlexDatePostForm(data, instance=p)
|
|
self.assertTrue(form.is_valid())
|
|
|
|
def test_override_unique_message(self):
|
|
class CustomProductForm(ProductForm):
|
|
class Meta(ProductForm.Meta):
|
|
error_messages = {
|
|
'slug': {
|
|
'unique': "%(model_name)s's %(field_label)s not unique.",
|
|
}
|
|
}
|
|
|
|
Product.objects.create(slug='teddy-bear-blue')
|
|
form = CustomProductForm({'slug': 'teddy-bear-blue'})
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['slug'], ["Product's Slug not unique."])
|
|
|
|
def test_override_unique_together_message(self):
|
|
class CustomPriceForm(PriceForm):
|
|
class Meta(PriceForm.Meta):
|
|
error_messages = {
|
|
NON_FIELD_ERRORS: {
|
|
'unique_together': "%(model_name)s's %(field_labels)s not unique.",
|
|
}
|
|
}
|
|
|
|
Price.objects.create(price=6.00, quantity=1)
|
|
form = CustomPriceForm({'price': '6.00', 'quantity': '1'})
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors[NON_FIELD_ERRORS], ["Price's Price and Quantity not unique."])
|
|
|
|
def test_override_unique_for_date_message(self):
|
|
class CustomPostForm(PostForm):
|
|
class Meta(PostForm.Meta):
|
|
error_messages = {
|
|
'title': {
|
|
'unique_for_date': (
|
|
"%(model_name)s's %(field_label)s not unique "
|
|
"for %(date_field_label)s date."
|
|
),
|
|
}
|
|
}
|
|
|
|
Post.objects.create(
|
|
title="Django 1.0 is released", slug="Django 1.0",
|
|
subtitle="Finally", posted=datetime.date(2008, 9, 3),
|
|
)
|
|
form = CustomPostForm({'title': "Django 1.0 is released", 'posted': '2008-09-03'})
|
|
self.assertEqual(len(form.errors), 1)
|
|
self.assertEqual(form.errors['title'], ["Post's Title not unique for Posted date."])
|
|
|
|
|
|
class ModelFormBasicTests(TestCase):
|
|
def create_basic_data(self):
|
|
self.c1 = Category.objects.create(name='Entertainment', slug='entertainment', url='entertainment')
|
|
self.c2 = Category.objects.create(name="It's a test", slug='its-test', url='test')
|
|
self.c3 = Category.objects.create(name='Third test', slug='third-test', url='third')
|
|
self.w_royko = Writer.objects.create(name='Mike Royko')
|
|
self.w_woodward = Writer.objects.create(name='Bob Woodward')
|
|
|
|
def test_base_form(self):
|
|
self.assertEqual(Category.objects.count(), 0)
|
|
f = BaseCategoryForm()
|
|
self.assertHTMLEqual(
|
|
str(f),
|
|
"""<tr><th><label for="id_name">Name:</label></th>
|
|
<td><input id="id_name" type="text" name="name" maxlength="20" required></td></tr>
|
|
<tr><th><label for="id_slug">Slug:</label></th>
|
|
<td><input id="id_slug" type="text" name="slug" maxlength="20" required></td></tr>
|
|
<tr><th><label for="id_url">The URL:</label></th>
|
|
<td><input id="id_url" type="text" name="url" maxlength="40" required></td></tr>"""
|
|
)
|
|
self.assertHTMLEqual(
|
|
str(f.as_ul()),
|
|
"""<li><label for="id_name">Name:</label> <input id="id_name" type="text" name="name" maxlength="20" required></li>
|
|
<li><label for="id_slug">Slug:</label> <input id="id_slug" type="text" name="slug" maxlength="20" required></li>
|
|
<li><label for="id_url">The URL:</label> <input id="id_url" type="text" name="url" maxlength="40" required></li>"""
|
|
)
|
|
self.assertHTMLEqual(
|
|
str(f["name"]),
|
|
"""<input id="id_name" type="text" name="name" maxlength="20" required>""")
|
|
|
|
def test_auto_id(self):
|
|
f = BaseCategoryForm(auto_id=False)
|
|
self.assertHTMLEqual(
|
|
str(f.as_ul()),
|
|
"""<li>Name: <input type="text" name="name" maxlength="20" required></li>
|
|
<li>Slug: <input type="text" name="slug" maxlength="20" required></li>
|
|
<li>The URL: <input type="text" name="url" maxlength="40" required></li>"""
|
|
)
|
|
|
|
def test_initial_values(self):
|
|
self.create_basic_data()
|
|
# Initial values can be provided for model forms
|
|
f = ArticleForm(
|
|
auto_id=False,
|
|
initial={
|
|
'headline': 'Your headline here',
|
|
'categories': [str(self.c1.id), str(self.c2.id)]
|
|
})
|
|
self.assertHTMLEqual(
|
|
f.as_ul(),
|
|
'''<li>Headline: <input type="text" name="headline" value="Your headline here" maxlength="50" required></li>
|
|
<li>Slug: <input type="text" name="slug" maxlength="50" required></li>
|
|
<li>Pub date: <input type="text" name="pub_date" required></li>
|
|
<li>Writer: <select name="writer" required>
|
|
<option value="" selected>---------</option>
|
|
<option value="%s">Bob Woodward</option>
|
|
<option value="%s">Mike Royko</option>
|
|
</select></li>
|
|
<li>Article: <textarea rows="10" cols="40" name="article" required></textarea></li>
|
|
<li>Categories: <select multiple name="categories">
|
|
<option value="%s" selected>Entertainment</option>
|
|
<option value="%s" selected>It's a test</option>
|
|
<option value="%s">Third test</option>
|
|
</select></li>
|
|
<li>Status: <select name="status">
|
|
<option value="" selected>---------</option>
|
|
<option value="1">Draft</option>
|
|
<option value="2">Pending</option>
|
|
<option value="3">Live</option>
|
|
</select></li>''' % (self.w_woodward.pk, self.w_royko.pk, self.c1.pk, self.c2.pk, self.c3.pk))
|
|
|
|
# When the ModelForm is passed an instance, that instance's current values are
|
|
# inserted as 'initial' data in each Field.
|
|
f = RoykoForm(auto_id=False, instance=self.w_royko)
|
|
self.assertHTMLEqual(
|
|
str(f),
|
|
'''<tr><th>Name:</th><td><input type="text" name="name" value="Mike Royko" maxlength="50" required><br>
|
|
<span class="helptext">Use both first and last names.</span></td></tr>'''
|
|
)
|
|
|
|
art = Article.objects.create(
|
|
headline='Test article',
|
|
slug='test-article',
|
|
pub_date=datetime.date(1988, 1, 4),
|
|
writer=self.w_royko,
|
|
article='Hello.'
|
|
)
|
|
art_id_1 = art.id
|
|
|
|
f = ArticleForm(auto_id=False, instance=art)
|
|
self.assertHTMLEqual(
|
|
f.as_ul(),
|
|
'''<li>Headline: <input type="text" name="headline" value="Test article" maxlength="50" required></li>
|
|
<li>Slug: <input type="text" name="slug" value="test-article" maxlength="50" required></li>
|
|
<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" required></li>
|
|
<li>Writer: <select name="writer" required>
|
|
<option value="">---------</option>
|
|
<option value="%s">Bob Woodward</option>
|
|
<option value="%s" selected>Mike Royko</option>
|
|
</select></li>
|
|
<li>Article: <textarea rows="10" cols="40" name="article" required>Hello.</textarea></li>
|
|
<li>Categories: <select multiple name="categories">
|
|
<option value="%s">Entertainment</option>
|
|
<option value="%s">It's a test</option>
|
|
<option value="%s">Third test</option>
|
|
</select></li>
|
|
<li>Status: <select name="status">
|
|
<option value="" selected>---------</option>
|
|
<option value="1">Draft</option>
|
|
<option value="2">Pending</option>
|
|
<option value="3">Live</option>
|
|
</select></li>''' % (self.w_woodward.pk, self.w_royko.pk, self.c1.pk, self.c2.pk, self.c3.pk))
|
|
|
|
f = ArticleForm({
|
|
'headline': 'Test headline',
|
|
'slug': 'test-headline',
|
|
'pub_date': '1984-02-06',
|
|
'writer': str(self.w_royko.pk),
|
|
'article': 'Hello.'
|
|
}, instance=art)
|
|
self.assertEqual(f.errors, {})
|
|
self.assertTrue(f.is_valid())
|
|
test_art = f.save()
|
|
self.assertEqual(test_art.id, art_id_1)
|
|
test_art = Article.objects.get(id=art_id_1)
|
|
self.assertEqual(test_art.headline, 'Test headline')
|
|
|
|
def test_m2m_initial_callable(self):
|
|
"""
|
|
Regression for #10349: A callable can be provided as the initial value for an m2m field
|
|
"""
|
|
self.maxDiff = 1200
|
|
self.create_basic_data()
|
|
|
|
# Set up a callable initial value
|
|
def formfield_for_dbfield(db_field, **kwargs):
|
|
if db_field.name == 'categories':
|
|
kwargs['initial'] = lambda: Category.objects.all().order_by('name')[:2]
|
|
return db_field.formfield(**kwargs)
|
|
|
|
# Create a ModelForm, instantiate it, and check that the output is as expected
|
|
ModelForm = modelform_factory(
|
|
Article,
|
|
fields=['headline', 'categories'],
|
|
formfield_callback=formfield_for_dbfield,
|
|
)
|
|
form = ModelForm()
|
|
self.assertHTMLEqual(
|
|
form.as_ul(),
|
|
"""<li><label for="id_headline">Headline:</label>
|
|
<input id="id_headline" type="text" name="headline" maxlength="50" required></li>
|
|
<li><label for="id_categories">Categories:</label>
|
|
<select multiple name="categories" id="id_categories">
|
|
<option value="%d" selected>Entertainment</option>
|
|
<option value="%d" selected>It's a test</option>
|
|
<option value="%d">Third test</option>
|
|
</select></li>"""
|
|
% (self.c1.pk, self.c2.pk, self.c3.pk))
|
|
|
|
def test_basic_creation(self):
|
|
self.assertEqual(Category.objects.count(), 0)
|
|
f = BaseCategoryForm({
|
|
'name': 'Entertainment',
|
|
'slug': 'entertainment',
|
|
'url': 'entertainment',
|
|
})
|
|
self.assertTrue(f.is_valid())
|
|
self.assertEqual(f.cleaned_data['name'], 'Entertainment')
|
|
self.assertEqual(f.cleaned_data['slug'], 'entertainment')
|
|
self.assertEqual(f.cleaned_data['url'], 'entertainment')
|
|
c1 = f.save()
|
|
# Testing whether the same object is returned from the
|
|
# ORM... not the fastest way...
|
|
|
|
self.assertEqual(Category.objects.count(), 1)
|
|
self.assertEqual(c1, Category.objects.all()[0])
|
|
self.assertEqual(c1.name, "Entertainment")
|
|
|
|
def test_save_commit_false(self):
|
|
# If you call save() with commit=False, then it will return an object that
|
|
# hasn't yet been saved to the database. In this case, it's up to you to call
|
|
# save() on the resulting model instance.
|
|
f = BaseCategoryForm({'name': 'Third test', 'slug': 'third-test', 'url': 'third'})
|
|
self.assertTrue(f.is_valid())
|
|
c1 = f.save(commit=False)
|
|
self.assertEqual(c1.name, "Third test")
|
|
self.assertEqual(Category.objects.count(), 0)
|
|
c1.save()
|
|
self.assertEqual(Category.objects.count(), 1)
|
|
|
|
def test_save_with_data_errors(self):
|
|
# If you call save() with invalid data, you'll get a ValueError.
|
|
f = BaseCategoryForm({'name': '', 'slug': 'not a slug!', 'url': 'foo'})
|
|
self.assertEqual(f.errors['name'], ['This field is required.'])
|
|
self.assertEqual(
|
|
f.errors['slug'],
|
|
["Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens."]
|
|
)
|
|
self.assertEqual(f.cleaned_data, {'url': 'foo'})
|
|
msg = "The Category could not be created because the data didn't validate."
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
f.save()
|
|
f = BaseCategoryForm({'name': '', 'slug': '', 'url': 'foo'})
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
f.save()
|
|
|
|
def test_multi_fields(self):
|
|
self.create_basic_data()
|
|
self.maxDiff = None
|
|
# ManyToManyFields are represented by a MultipleChoiceField, ForeignKeys and any
|
|
# fields with the 'choices' attribute are represented by a ChoiceField.
|
|
f = ArticleForm(auto_id=False)
|
|
self.assertHTMLEqual(
|
|
str(f),
|
|
'''<tr><th>Headline:</th><td><input type="text" name="headline" maxlength="50" required></td></tr>
|
|
<tr><th>Slug:</th><td><input type="text" name="slug" maxlength="50" required></td></tr>
|
|
<tr><th>Pub date:</th><td><input type="text" name="pub_date" required></td></tr>
|
|
<tr><th>Writer:</th><td><select name="writer" required>
|
|
<option value="" selected>---------</option>
|
|
<option value="%s">Bob Woodward</option>
|
|
<option value="%s">Mike Royko</option>
|
|
</select></td></tr>
|
|
<tr><th>Article:</th><td><textarea rows="10" cols="40" name="article" required></textarea></td></tr>
|
|
<tr><th>Categories:</th><td><select multiple name="categories">
|
|
<option value="%s">Entertainment</option>
|
|
<option value="%s">It's a test</option>
|
|
<option value="%s">Third test</option>
|
|
</select></td></tr>
|
|
<tr><th>Status:</th><td><select name="status">
|
|
<option value="" selected>---------</option>
|
|
<option value="1">Draft</option>
|
|
<option value="2">Pending</option>
|
|
<option value="3">Live</option>
|
|
</select></td></tr>''' % (self.w_woodward.pk, self.w_royko.pk, self.c1.pk, self.c2.pk, self.c3.pk))
|
|
|
|
# Add some categories and test the many-to-many form output.
|
|
new_art = Article.objects.create(
|
|
article="Hello.", headline="New headline", slug="new-headline",
|
|
pub_date=datetime.date(1988, 1, 4), writer=self.w_royko)
|
|
new_art.categories.add(Category.objects.get(name='Entertainment'))
|
|
self.assertQuerysetEqual(new_art.categories.all(), ["Entertainment"])
|
|
f = ArticleForm(auto_id=False, instance=new_art)
|
|
self.assertHTMLEqual(
|
|
f.as_ul(),
|
|
'''<li>Headline: <input type="text" name="headline" value="New headline" maxlength="50" required></li>
|
|
<li>Slug: <input type="text" name="slug" value="new-headline" maxlength="50" required></li>
|
|
<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" required></li>
|
|
<li>Writer: <select name="writer" required>
|
|
<option value="">---------</option>
|
|
<option value="%s">Bob Woodward</option>
|
|
<option value="%s" selected>Mike Royko</option>
|
|
</select></li>
|
|
<li>Article: <textarea rows="10" cols="40" name="article" required>Hello.</textarea></li>
|
|
<li>Categories: <select multiple name="categories">
|
|
<option value="%s" selected>Entertainment</option>
|
|
<option value="%s">It's a test</option>
|
|
<option value="%s">Third test</option>
|
|
</select></li>
|
|
<li>Status: <select name="status">
|
|
<option value="" selected>---------</option>
|
|
<option value="1">Draft</option>
|
|
<option value="2">Pending</option>
|
|
<option value="3">Live</option>
|
|
</select></li>''' % (self.w_woodward.pk, self.w_royko.pk, self.c1.pk, self.c2.pk, self.c3.pk))
|
|
|
|
def test_subset_fields(self):
|
|
# You can restrict a form to a subset of the complete list of fields
|
|
# by providing a 'fields' argument. If you try to save a
|
|
# model created with such a form, you need to ensure that the fields
|
|
# that are _not_ on the form have default values, or are allowed to have
|
|
# a value of None. If a field isn't specified on a form, the object created
|
|
# from the form can't provide a value for that field!
|
|
class PartialArticleForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Article
|
|
fields = ('headline', 'pub_date')
|
|
|
|
f = PartialArticleForm(auto_id=False)
|
|
self.assertHTMLEqual(
|
|
str(f),
|
|
'''<tr><th>Headline:</th><td><input type="text" name="headline" maxlength="50" required></td></tr>
|
|
<tr><th>Pub date:</th><td><input type="text" name="pub_date" required></td></tr>''')
|
|
|
|
class PartialArticleFormWithSlug(forms.ModelForm):
|
|
class Meta:
|
|
model = Article
|
|
fields = ('headline', 'slug', 'pub_date')
|
|
|
|
w_royko = Writer.objects.create(name='Mike Royko')
|
|
art = Article.objects.create(
|
|
article="Hello.", headline="New headline", slug="new-headline",
|
|
pub_date=datetime.date(1988, 1, 4), writer=w_royko)
|
|
f = PartialArticleFormWithSlug({
|
|
'headline': 'New headline',
|
|
'slug': 'new-headline',
|
|
'pub_date': '1988-01-04'
|
|
}, auto_id=False, instance=art)
|
|
self.assertHTMLEqual(
|
|
f.as_ul(),
|
|
'''<li>Headline: <input type="text" name="headline" value="New headline" maxlength="50" required></li>
|
|
<li>Slug: <input type="text" name="slug" value="new-headline" maxlength="50" required></li>
|
|
<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" required></li>'''
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
new_art = f.save()
|
|
self.assertEqual(new_art.id, art.id)
|
|
new_art = Article.objects.get(id=art.id)
|
|
self.assertEqual(new_art.headline, 'New headline')
|
|
|
|
def test_m2m_editing(self):
|
|
self.create_basic_data()
|
|
form_data = {
|
|
'headline': 'New headline',
|
|
'slug': 'new-headline',
|
|
'pub_date': '1988-01-04',
|
|
'writer': str(self.w_royko.pk),
|
|
'article': 'Hello.',
|
|
'categories': [str(self.c1.id), str(self.c2.id)]
|
|
}
|
|
# Create a new article, with categories, via the form.
|
|
f = ArticleForm(form_data)
|
|
new_art = f.save()
|
|
new_art = Article.objects.get(id=new_art.id)
|
|
art_id_1 = new_art.id
|
|
self.assertQuerysetEqual(new_art.categories.order_by('name'), ["Entertainment", "It's a test"])
|
|
|
|
# Now, submit form data with no categories. This deletes the existing categories.
|
|
form_data['categories'] = []
|
|
f = ArticleForm(form_data, instance=new_art)
|
|
new_art = f.save()
|
|
self.assertEqual(new_art.id, art_id_1)
|
|
new_art = Article.objects.get(id=art_id_1)
|
|
self.assertQuerysetEqual(new_art.categories.all(), [])
|
|
|
|
# Create a new article, with no categories, via the form.
|
|
f = ArticleForm(form_data)
|
|
new_art = f.save()
|
|
art_id_2 = new_art.id
|
|
self.assertNotIn(art_id_2, (None, art_id_1))
|
|
new_art = Article.objects.get(id=art_id_2)
|
|
self.assertQuerysetEqual(new_art.categories.all(), [])
|
|
|
|
# Create a new article, with categories, via the form, but use commit=False.
|
|
# The m2m data won't be saved until save_m2m() is invoked on the form.
|
|
form_data['categories'] = [str(self.c1.id), str(self.c2.id)]
|
|
f = ArticleForm(form_data)
|
|
new_art = f.save(commit=False)
|
|
|
|
# Manually save the instance
|
|
new_art.save()
|
|
art_id_3 = new_art.id
|
|
self.assertNotIn(art_id_3, (None, art_id_1, art_id_2))
|
|
|
|
# The instance doesn't have m2m data yet
|
|
new_art = Article.objects.get(id=art_id_3)
|
|
self.assertQuerysetEqual(new_art.categories.all(), [])
|
|
|
|
# Save the m2m data on the form
|
|
f.save_m2m()
|
|
self.assertQuerysetEqual(new_art.categories.order_by('name'), ["Entertainment", "It's a test"])
|
|
|
|
def test_custom_form_fields(self):
|
|
# Here, we define a custom ModelForm. Because it happens to have the same fields as
|
|
# the Category model, we can just call the form's save() to apply its changes to an
|
|
# existing Category instance.
|
|
class ShortCategory(forms.ModelForm):
|
|
name = forms.CharField(max_length=5)
|
|
slug = forms.CharField(max_length=5)
|
|
url = forms.CharField(max_length=3)
|
|
|
|
class Meta:
|
|
model = Category
|
|
fields = '__all__'
|
|
|
|
cat = Category.objects.create(name='Third test')
|
|
form = ShortCategory({'name': 'Third', 'slug': 'third', 'url': '3rd'}, instance=cat)
|
|
self.assertEqual(form.save().name, 'Third')
|
|
self.assertEqual(Category.objects.get(id=cat.id).name, 'Third')
|
|
|
|
def test_runtime_choicefield_populated(self):
|
|
self.maxDiff = None
|
|
# Here, we demonstrate that choices for a ForeignKey ChoiceField are determined
|
|
# at runtime, based on the data in the database when the form is displayed, not
|
|
# the data in the database when the form is instantiated.
|
|
self.create_basic_data()
|
|
f = ArticleForm(auto_id=False)
|
|
self.assertHTMLEqual(
|
|
f.as_ul(),
|
|
'''<li>Headline: <input type="text" name="headline" maxlength="50" required></li>
|
|
<li>Slug: <input type="text" name="slug" maxlength="50" required></li>
|
|
<li>Pub date: <input type="text" name="pub_date" required></li>
|
|
<li>Writer: <select name="writer" required>
|
|
<option value="" selected>---------</option>
|
|
<option value="%s">Bob Woodward</option>
|
|
<option value="%s">Mike Royko</option>
|
|
</select></li>
|
|
<li>Article: <textarea rows="10" cols="40" name="article" required></textarea></li>
|
|
<li>Categories: <select multiple name="categories">
|
|
<option value="%s">Entertainment</option>
|
|
<option value="%s">It's a test</option>
|
|
<option value="%s">Third test</option>
|
|
</select> </li>
|
|
<li>Status: <select name="status">
|
|
<option value="" selected>---------</option>
|
|
<option value="1">Draft</option>
|
|
<option value="2">Pending</option>
|
|
<option value="3">Live</option>
|
|
</select></li>''' % (self.w_woodward.pk, self.w_royko.pk, self.c1.pk, self.c2.pk, self.c3.pk))
|
|
|
|
c4 = Category.objects.create(name='Fourth', url='4th')
|
|
w_bernstein = Writer.objects.create(name='Carl Bernstein')
|
|
self.assertHTMLEqual(
|
|
f.as_ul(),
|
|
'''<li>Headline: <input type="text" name="headline" maxlength="50" required></li>
|
|
<li>Slug: <input type="text" name="slug" maxlength="50" required></li>
|
|
<li>Pub date: <input type="text" name="pub_date" required></li>
|
|
<li>Writer: <select name="writer" required>
|
|
<option value="" selected>---------</option>
|
|
<option value="%s">Bob Woodward</option>
|
|
<option value="%s">Carl Bernstein</option>
|
|
<option value="%s">Mike Royko</option>
|
|
</select></li>
|
|
<li>Article: <textarea rows="10" cols="40" name="article" required></textarea></li>
|
|
<li>Categories: <select multiple name="categories">
|
|
<option value="%s">Entertainment</option>
|
|
<option value="%s">It's a test</option>
|
|
<option value="%s">Third test</option>
|
|
<option value="%s">Fourth</option>
|
|
</select></li>
|
|
<li>Status: <select name="status">
|
|
<option value="" selected>---------</option>
|
|
<option value="1">Draft</option>
|
|
<option value="2">Pending</option>
|
|
<option value="3">Live</option>
|
|
</select></li>''' % (self.w_woodward.pk, w_bernstein.pk, self.w_royko.pk, self.c1.pk, self.c2.pk, self.c3.pk, c4.pk))
|
|
|
|
def test_recleaning_model_form_instance(self):
|
|
"""
|
|
Re-cleaning an instance that was added via a ModelForm shouldn't raise
|
|
a pk uniqueness error.
|
|
"""
|
|
class AuthorForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Author
|
|
fields = '__all__'
|
|
|
|
form = AuthorForm({'full_name': 'Bob'})
|
|
self.assertTrue(form.is_valid())
|
|
obj = form.save()
|
|
obj.name = 'Alice'
|
|
obj.full_clean()
|
|
|
|
|
|
class ModelMultipleChoiceFieldTests(TestCase):
|
|
@classmethod
|
|
def setUpTestData(cls):
|
|
cls.c1 = Category.objects.create(name='Entertainment', slug='entertainment', url='entertainment')
|
|
cls.c2 = Category.objects.create(name="It's a test", slug='its-test', url='test')
|
|
cls.c3 = Category.objects.create(name='Third', slug='third-test', url='third')
|
|
|
|
def test_model_multiple_choice_field(self):
|
|
f = forms.ModelMultipleChoiceField(Category.objects.all())
|
|
self.assertEqual(list(f.choices), [
|
|
(self.c1.pk, 'Entertainment'),
|
|
(self.c2.pk, "It's a test"),
|
|
(self.c3.pk, 'Third')])
|
|
with self.assertRaises(ValidationError):
|
|
f.clean(None)
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([])
|
|
self.assertQuerysetEqual(f.clean([self.c1.id]), ["Entertainment"])
|
|
self.assertQuerysetEqual(f.clean([self.c2.id]), ["It's a test"])
|
|
self.assertQuerysetEqual(f.clean([str(self.c1.id)]), ["Entertainment"])
|
|
self.assertQuerysetEqual(
|
|
f.clean([str(self.c1.id), str(self.c2.id)]),
|
|
["Entertainment", "It's a test"], ordered=False
|
|
)
|
|
self.assertQuerysetEqual(
|
|
f.clean([self.c1.id, str(self.c2.id)]),
|
|
["Entertainment", "It's a test"], ordered=False
|
|
)
|
|
self.assertQuerysetEqual(
|
|
f.clean((self.c1.id, str(self.c2.id))),
|
|
["Entertainment", "It's a test"], ordered=False
|
|
)
|
|
with self.assertRaises(ValidationError):
|
|
f.clean(['100'])
|
|
with self.assertRaises(ValidationError):
|
|
f.clean('hello')
|
|
with self.assertRaises(ValidationError):
|
|
f.clean(['fail'])
|
|
|
|
# Invalid types that require TypeError to be caught (#22808).
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([['fail']])
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([{'foo': 'bar'}])
|
|
|
|
# Add a Category object *after* the ModelMultipleChoiceField has already been
|
|
# instantiated. This proves clean() checks the database during clean() rather
|
|
# than caching it at time of instantiation.
|
|
# Note, we are using an id of 1006 here since tests that run before
|
|
# this may create categories with primary keys up to 6. Use
|
|
# a number that will not conflict.
|
|
c6 = Category.objects.create(id=1006, name='Sixth', url='6th')
|
|
self.assertQuerysetEqual(f.clean([c6.id]), ["Sixth"])
|
|
|
|
# Delete a Category object *after* the ModelMultipleChoiceField has already been
|
|
# instantiated. This proves clean() checks the database during clean() rather
|
|
# than caching it at time of instantiation.
|
|
Category.objects.get(url='6th').delete()
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([c6.id])
|
|
|
|
def test_model_multiple_choice_required_false(self):
|
|
f = forms.ModelMultipleChoiceField(Category.objects.all(), required=False)
|
|
self.assertIsInstance(f.clean([]), EmptyQuerySet)
|
|
self.assertIsInstance(f.clean(()), EmptyQuerySet)
|
|
with self.assertRaises(ValidationError):
|
|
f.clean(['0'])
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([str(self.c3.id), '0'])
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([str(self.c1.id), '0'])
|
|
|
|
# queryset can be changed after the field is created.
|
|
f.queryset = Category.objects.exclude(name='Third')
|
|
self.assertEqual(list(f.choices), [
|
|
(self.c1.pk, 'Entertainment'),
|
|
(self.c2.pk, "It's a test")])
|
|
self.assertQuerysetEqual(f.clean([self.c2.id]), ["It's a test"])
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([self.c3.id])
|
|
with self.assertRaises(ValidationError):
|
|
f.clean([str(self.c2.id), str(self.c3.id)])
|
|
|
|
f.queryset = Category.objects.all()
|
|
f.label_from_instance = lambda obj: "multicategory " + str(obj)
|
|
self.assertEqual(list(f.choices), [
|
|
(self.c1.pk, 'multicategory Entertainment'),
|
|
(self.c2.pk, "multicategory It's a test"),
|
|
(self.c3.pk, 'multicategory Third')])
|
|
|
|
def test_model_multiple_choice_number_of_queries(self):
|
|
"""
|
|
ModelMultipleChoiceField does O(1) queries instead of O(n) (#10156).
|
|
"""
|
|
persons = [Writer.objects.create(name="Person %s" % i) for i in range(30)]
|
|
|
|
f = forms.ModelMultipleChoiceField(queryset=Writer.objects.all())
|
|
self.assertNumQueries(1, f.clean, [p.pk for p in persons[1:11:2]])
|
|
|
|
def test_model_multiple_choice_run_validators(self):
|
|
"""
|
|
ModelMultipleChoiceField run given validators (#14144).
|
|
"""
|
|
for i in range(30):
|
|
Writer.objects.create(name="Person %s" % i)
|
|
|
|
self._validator_run = False
|
|
|
|
def my_validator(value):
|
|
self._validator_run = True
|
|
|
|
f = forms.ModelMultipleChoiceField(queryset=Writer.objects.all(), validators=[my_validator])
|
|
f.clean([p.pk for p in Writer.objects.all()[8:9]])
|
|
self.assertTrue(self._validator_run)
|
|
|
|
def test_model_multiple_choice_show_hidden_initial(self):
|
|
"""
|
|
Test support of show_hidden_initial by ModelMultipleChoiceField.
|
|
"""
|
|
class WriterForm(forms.Form):
|
|
persons = forms.ModelMultipleChoiceField(show_hidden_initial=True, queryset=Writer.objects.all())
|
|
|
|
person1 = Writer.objects.create(name="Person 1")
|
|
person2 = Writer.objects.create(name="Person 2")
|
|
|
|
form = WriterForm(
|
|
initial={'persons': [person1, person2]},
|
|
data={
|
|
'initial-persons': [str(person1.pk), str(person2.pk)],
|
|
'persons': [str(person1.pk), str(person2.pk)],
|
|
},
|
|
)
|
|
self.assertTrue(form.is_valid())
|
|
self.assertFalse(form.has_changed())
|
|
|
|
form = WriterForm(
|
|
initial={'persons': [person1, person2]},
|
|
data={
|
|
'initial-persons': [str(person1.pk), str(person2.pk)],
|
|
'persons': [str(person2.pk)],
|
|
},
|
|
)
|
|
self.assertTrue(form.is_valid())
|
|
self.assertTrue(form.has_changed())
|
|
|
|
def test_model_multiple_choice_field_22745(self):
|
|
"""
|
|
#22745 -- Make sure that ModelMultipleChoiceField with
|
|
CheckboxSelectMultiple widget doesn't produce unnecessary db queries
|
|
when accessing its BoundField's attrs.
|
|
"""
|
|
class ModelMultipleChoiceForm(forms.Form):
|
|
categories = forms.ModelMultipleChoiceField(Category.objects.all(), widget=forms.CheckboxSelectMultiple)
|
|
|
|
form = ModelMultipleChoiceForm()
|
|
field = form['categories'] # BoundField
|
|
template = Template('{{ field.name }}{{ field }}{{ field.help_text }}')
|
|
with self.assertNumQueries(1):
|
|
template.render(Context({'field': field}))
|
|
|
|
def test_show_hidden_initial_changed_queries_efficiently(self):
|
|
class WriterForm(forms.Form):
|
|
persons = forms.ModelMultipleChoiceField(
|
|
show_hidden_initial=True, queryset=Writer.objects.all())
|
|
|
|
writers = (Writer.objects.create(name=str(x)) for x in range(0, 50))
|
|
writer_pks = tuple(x.pk for x in writers)
|
|
form = WriterForm(data={'initial-persons': writer_pks})
|
|
with self.assertNumQueries(1):
|
|
self.assertTrue(form.has_changed())
|
|
|
|
def test_clean_does_deduplicate_values(self):
|
|
class WriterForm(forms.Form):
|
|
persons = forms.ModelMultipleChoiceField(queryset=Writer.objects.all())
|
|
|
|
person1 = Writer.objects.create(name="Person 1")
|
|
form = WriterForm(data={})
|
|
queryset = form.fields['persons'].clean([str(person1.pk)] * 50)
|
|
sql, params = queryset.query.sql_with_params()
|
|
self.assertEqual(len(params), 1)
|
|
|
|
def test_to_field_name_with_initial_data(self):
|
|
class ArticleCategoriesForm(forms.ModelForm):
|
|
categories = forms.ModelMultipleChoiceField(Category.objects.all(), to_field_name='slug')
|
|
|
|
class Meta:
|
|
model = Article
|
|
fields = ['categories']
|
|
|
|
article = Article.objects.create(
|
|
headline='Test article',
|
|
slug='test-article',
|
|
pub_date=datetime.date(1988, 1, 4),
|
|
writer=Writer.objects.create(name='Test writer'),
|
|
article='Hello.',
|
|
)
|
|
article.categories.add(self.c2, self.c3)
|
|
form = ArticleCategoriesForm(instance=article)
|
|
self.assertCountEqual(form['categories'].value(), [self.c2.slug, self.c3.slug])
|
|
|
|
|
|
class ModelOneToOneFieldTests(TestCase):
|
|
def test_modelform_onetoonefield(self):
|
|
class ImprovedArticleForm(forms.ModelForm):
|
|
class Meta:
|
|
model = ImprovedArticle
|
|
fields = '__all__'
|
|
|
|
class ImprovedArticleWithParentLinkForm(forms.ModelForm):
|
|
class Meta:
|
|
model = ImprovedArticleWithParentLink
|
|
fields = '__all__'
|
|
|
|
self.assertEqual(list(ImprovedArticleForm.base_fields), ['article'])
|
|
self.assertEqual(list(ImprovedArticleWithParentLinkForm.base_fields), [])
|
|
|
|
def test_modelform_subclassed_model(self):
|
|
class BetterWriterForm(forms.ModelForm):
|
|
class Meta:
|
|
# BetterWriter model is a subclass of Writer with an additional `score` field
|
|
model = BetterWriter
|
|
fields = '__all__'
|
|
|
|
bw = BetterWriter.objects.create(name='Joe Better', score=10)
|
|
self.assertEqual(sorted(model_to_dict(bw)), ['id', 'name', 'score', 'writer_ptr'])
|
|
self.assertEqual(sorted(model_to_dict(bw, fields=[])), [])
|
|
self.assertEqual(sorted(model_to_dict(bw, fields=['id', 'name'])), ['id', 'name'])
|
|
self.assertEqual(sorted(model_to_dict(bw, exclude=[])), ['id', 'name', 'score', 'writer_ptr'])
|
|
self.assertEqual(sorted(model_to_dict(bw, exclude=['id', 'name'])), ['score', 'writer_ptr'])
|
|
|
|
form = BetterWriterForm({'name': 'Some Name', 'score': 12})
|
|
self.assertTrue(form.is_valid())
|
|
bw2 = form.save()
|
|
self.assertEqual(bw2.score, 12)
|
|
|
|
def test_onetoonefield(self):
|
|
class WriterProfileForm(forms.ModelForm):
|
|
class Meta:
|
|
# WriterProfile has a OneToOneField to Writer
|
|
model = WriterProfile
|
|
fields = '__all__'
|
|
|
|
self.w_royko = Writer.objects.create(name='Mike Royko')
|
|
self.w_woodward = Writer.objects.create(name='Bob Woodward')
|
|
|
|
form = WriterProfileForm()
|
|
self.assertHTMLEqual(
|
|
form.as_p(),
|
|
'''<p><label for="id_writer">Writer:</label> <select name="writer" id="id_writer" required>
|
|
<option value="" selected>---------</option>
|
|
<option value="%s">Bob Woodward</option>
|
|
<option value="%s">Mike Royko</option>
|
|
</select></p>
|
|
<p><label for="id_age">Age:</label> <input type="number" name="age" id="id_age" min="0" required></p>''' % (
|
|
self.w_woodward.pk, self.w_royko.pk,
|
|
)
|
|
)
|
|
|
|
data = {
|
|
'writer': str(self.w_woodward.pk),
|
|
'age': '65',
|
|
}
|
|
form = WriterProfileForm(data)
|
|
instance = form.save()
|
|
self.assertEqual(str(instance), 'Bob Woodward is 65')
|
|
|
|
form = WriterProfileForm(instance=instance)
|
|
self.assertHTMLEqual(
|
|
form.as_p(),
|
|
'''<p><label for="id_writer">Writer:</label> <select name="writer" id="id_writer" required>
|
|
<option value="">---------</option>
|
|
<option value="%s" selected>Bob Woodward</option>
|
|
<option value="%s">Mike Royko</option>
|
|
</select></p>
|
|
<p><label for="id_age">Age:</label>
|
|
<input type="number" name="age" value="65" id="id_age" min="0" required></p>''' % (
|
|
self.w_woodward.pk, self.w_royko.pk,
|
|
)
|
|
)
|
|
|
|
def test_assignment_of_none(self):
|
|
class AuthorForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Author
|
|
fields = ['publication', 'full_name']
|
|
|
|
publication = Publication.objects.create(title="Pravda", date_published=datetime.date(1991, 8, 22))
|
|
author = Author.objects.create(publication=publication, full_name='John Doe')
|
|
form = AuthorForm({'publication': '', 'full_name': 'John Doe'}, instance=author)
|
|
self.assertTrue(form.is_valid())
|
|
self.assertIsNone(form.cleaned_data['publication'])
|
|
author = form.save()
|
|
# author object returned from form still retains original publication object
|
|
# that's why we need to retrieve it from database again
|
|
new_author = Author.objects.get(pk=author.pk)
|
|
self.assertIsNone(new_author.publication)
|
|
|
|
def test_assignment_of_none_null_false(self):
|
|
class AuthorForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Author1
|
|
fields = ['publication', 'full_name']
|
|
|
|
publication = Publication.objects.create(title="Pravda", date_published=datetime.date(1991, 8, 22))
|
|
author = Author1.objects.create(publication=publication, full_name='John Doe')
|
|
form = AuthorForm({'publication': '', 'full_name': 'John Doe'}, instance=author)
|
|
self.assertFalse(form.is_valid())
|
|
|
|
|
|
class FileAndImageFieldTests(TestCase):
|
|
def test_clean_false(self):
|
|
"""
|
|
If the ``clean`` method on a non-required FileField receives False as
|
|
the data (meaning clear the field value), it returns False, regardless
|
|
of the value of ``initial``.
|
|
"""
|
|
f = forms.FileField(required=False)
|
|
self.assertIs(f.clean(False), False)
|
|
self.assertIs(f.clean(False, 'initial'), False)
|
|
|
|
def test_clean_false_required(self):
|
|
"""
|
|
If the ``clean`` method on a required FileField receives False as the
|
|
data, it has the same effect as None: initial is returned if non-empty,
|
|
otherwise the validation catches the lack of a required value.
|
|
"""
|
|
f = forms.FileField(required=True)
|
|
self.assertEqual(f.clean(False, 'initial'), 'initial')
|
|
with self.assertRaises(ValidationError):
|
|
f.clean(False)
|
|
|
|
def test_full_clear(self):
|
|
"""
|
|
Integration happy-path test that a model FileField can actually be set
|
|
and cleared via a ModelForm.
|
|
"""
|
|
class DocumentForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Document
|
|
fields = '__all__'
|
|
|
|
form = DocumentForm()
|
|
self.assertIn('name="myfile"', str(form))
|
|
self.assertNotIn('myfile-clear', str(form))
|
|
form = DocumentForm(files={'myfile': SimpleUploadedFile('something.txt', b'content')})
|
|
self.assertTrue(form.is_valid())
|
|
doc = form.save(commit=False)
|
|
self.assertEqual(doc.myfile.name, 'something.txt')
|
|
form = DocumentForm(instance=doc)
|
|
self.assertIn('myfile-clear', str(form))
|
|
form = DocumentForm(instance=doc, data={'myfile-clear': 'true'})
|
|
doc = form.save(commit=False)
|
|
self.assertFalse(doc.myfile)
|
|
|
|
def test_clear_and_file_contradiction(self):
|
|
"""
|
|
If the user submits a new file upload AND checks the clear checkbox,
|
|
they get a validation error, and the bound redisplay of the form still
|
|
includes the current file and the clear checkbox.
|
|
"""
|
|
class DocumentForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Document
|
|
fields = '__all__'
|
|
|
|
form = DocumentForm(files={'myfile': SimpleUploadedFile('something.txt', b'content')})
|
|
self.assertTrue(form.is_valid())
|
|
doc = form.save(commit=False)
|
|
form = DocumentForm(
|
|
instance=doc,
|
|
files={'myfile': SimpleUploadedFile('something.txt', b'content')},
|
|
data={'myfile-clear': 'true'},
|
|
)
|
|
self.assertTrue(not form.is_valid())
|
|
self.assertEqual(form.errors['myfile'],
|
|
['Please either submit a file or check the clear checkbox, not both.'])
|
|
rendered = str(form)
|
|
self.assertIn('something.txt', rendered)
|
|
self.assertIn('myfile-clear', rendered)
|
|
|
|
def test_render_empty_file_field(self):
|
|
class DocumentForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Document
|
|
fields = '__all__'
|
|
|
|
doc = Document.objects.create()
|
|
form = DocumentForm(instance=doc)
|
|
self.assertHTMLEqual(
|
|
str(form['myfile']),
|
|
'<input id="id_myfile" name="myfile" type="file">'
|
|
)
|
|
|
|
def test_file_field_data(self):
|
|
# Test conditions when files is either not given or empty.
|
|
f = TextFileForm(data={'description': 'Assistance'})
|
|
self.assertFalse(f.is_valid())
|
|
f = TextFileForm(data={'description': 'Assistance'}, files={})
|
|
self.assertFalse(f.is_valid())
|
|
|
|
# Upload a file and ensure it all works as expected.
|
|
f = TextFileForm(
|
|
data={'description': 'Assistance'},
|
|
files={'file': SimpleUploadedFile('test1.txt', b'hello world')},
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
self.assertEqual(type(f.cleaned_data['file']), SimpleUploadedFile)
|
|
instance = f.save()
|
|
self.assertEqual(instance.file.name, 'tests/test1.txt')
|
|
instance.file.delete()
|
|
|
|
# If the previous file has been deleted, the file name can be reused
|
|
f = TextFileForm(
|
|
data={'description': 'Assistance'},
|
|
files={'file': SimpleUploadedFile('test1.txt', b'hello world')},
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
self.assertEqual(type(f.cleaned_data['file']), SimpleUploadedFile)
|
|
instance = f.save()
|
|
self.assertEqual(instance.file.name, 'tests/test1.txt')
|
|
|
|
# Check if the max_length attribute has been inherited from the model.
|
|
f = TextFileForm(
|
|
data={'description': 'Assistance'},
|
|
files={'file': SimpleUploadedFile('test-maxlength.txt', b'hello world')},
|
|
)
|
|
self.assertFalse(f.is_valid())
|
|
|
|
# Edit an instance that already has the file defined in the model. This will not
|
|
# save the file again, but leave it exactly as it is.
|
|
f = TextFileForm({'description': 'Assistance'}, instance=instance)
|
|
self.assertTrue(f.is_valid())
|
|
self.assertEqual(f.cleaned_data['file'].name, 'tests/test1.txt')
|
|
instance = f.save()
|
|
self.assertEqual(instance.file.name, 'tests/test1.txt')
|
|
|
|
# Delete the current file since this is not done by Django.
|
|
instance.file.delete()
|
|
|
|
# Override the file by uploading a new one.
|
|
f = TextFileForm(
|
|
data={'description': 'Assistance'},
|
|
files={'file': SimpleUploadedFile('test2.txt', b'hello world')},
|
|
instance=instance,
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.file.name, 'tests/test2.txt')
|
|
|
|
# Delete the current file since this is not done by Django.
|
|
instance.file.delete()
|
|
instance.delete()
|
|
|
|
def test_filefield_required_false(self):
|
|
# Test the non-required FileField
|
|
f = TextFileForm(data={'description': 'Assistance'})
|
|
f.fields['file'].required = False
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.file.name, '')
|
|
|
|
f = TextFileForm(
|
|
data={'description': 'Assistance'},
|
|
files={'file': SimpleUploadedFile('test3.txt', b'hello world')},
|
|
instance=instance,
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.file.name, 'tests/test3.txt')
|
|
|
|
# Instance can be edited w/out re-uploading the file and existing file should be preserved.
|
|
f = TextFileForm({'description': 'New Description'}, instance=instance)
|
|
f.fields['file'].required = False
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.description, 'New Description')
|
|
self.assertEqual(instance.file.name, 'tests/test3.txt')
|
|
|
|
# Delete the current file since this is not done by Django.
|
|
instance.file.delete()
|
|
instance.delete()
|
|
|
|
def test_custom_file_field_save(self):
|
|
"""
|
|
Regression for #11149: save_form_data should be called only once
|
|
"""
|
|
class CFFForm(forms.ModelForm):
|
|
class Meta:
|
|
model = CustomFF
|
|
fields = '__all__'
|
|
|
|
# It's enough that the form saves without error -- the custom save routine will
|
|
# generate an AssertionError if it is called more than once during save.
|
|
form = CFFForm(data={'f': None})
|
|
form.save()
|
|
|
|
def test_file_field_multiple_save(self):
|
|
"""
|
|
Simulate a file upload and check how many times Model.save() gets
|
|
called. Test for bug #639.
|
|
"""
|
|
class PhotoForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Photo
|
|
fields = '__all__'
|
|
|
|
# Grab an image for testing.
|
|
filename = os.path.join(os.path.dirname(__file__), 'test.png')
|
|
with open(filename, "rb") as fp:
|
|
img = fp.read()
|
|
|
|
# Fake a POST QueryDict and FILES MultiValueDict.
|
|
data = {'title': 'Testing'}
|
|
files = {"image": SimpleUploadedFile('test.png', img, 'image/png')}
|
|
|
|
form = PhotoForm(data=data, files=files)
|
|
p = form.save()
|
|
|
|
try:
|
|
# Check the savecount stored on the object (see the model).
|
|
self.assertEqual(p._savecount, 1)
|
|
finally:
|
|
# Delete the "uploaded" file to avoid clogging /tmp.
|
|
p = Photo.objects.get()
|
|
p.image.delete(save=False)
|
|
|
|
def test_file_path_field_blank(self):
|
|
"""FilePathField(blank=True) includes the empty option."""
|
|
class FPForm(forms.ModelForm):
|
|
class Meta:
|
|
model = FilePathModel
|
|
fields = '__all__'
|
|
|
|
form = FPForm()
|
|
self.assertEqual([name for _, name in form['path'].field.choices], ['---------', 'models.py'])
|
|
|
|
@skipUnless(test_images, "Pillow not installed")
|
|
def test_image_field(self):
|
|
# ImageField and FileField are nearly identical, but they differ slightly when
|
|
# it comes to validation. This specifically tests that #6302 is fixed for
|
|
# both file fields and image fields.
|
|
|
|
with open(os.path.join(os.path.dirname(__file__), 'test.png'), 'rb') as fp:
|
|
image_data = fp.read()
|
|
with open(os.path.join(os.path.dirname(__file__), 'test2.png'), 'rb') as fp:
|
|
image_data2 = fp.read()
|
|
|
|
f = ImageFileForm(
|
|
data={'description': 'An image'},
|
|
files={'image': SimpleUploadedFile('test.png', image_data)},
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
self.assertEqual(type(f.cleaned_data['image']), SimpleUploadedFile)
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/test.png')
|
|
self.assertEqual(instance.width, 16)
|
|
self.assertEqual(instance.height, 16)
|
|
|
|
# Delete the current file since this is not done by Django, but don't save
|
|
# because the dimension fields are not null=True.
|
|
instance.image.delete(save=False)
|
|
f = ImageFileForm(
|
|
data={'description': 'An image'},
|
|
files={'image': SimpleUploadedFile('test.png', image_data)},
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
self.assertEqual(type(f.cleaned_data['image']), SimpleUploadedFile)
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/test.png')
|
|
self.assertEqual(instance.width, 16)
|
|
self.assertEqual(instance.height, 16)
|
|
|
|
# Edit an instance that already has the (required) image defined in the model. This will not
|
|
# save the image again, but leave it exactly as it is.
|
|
|
|
f = ImageFileForm(data={'description': 'Look, it changed'}, instance=instance)
|
|
self.assertTrue(f.is_valid())
|
|
self.assertEqual(f.cleaned_data['image'].name, 'tests/test.png')
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/test.png')
|
|
self.assertEqual(instance.height, 16)
|
|
self.assertEqual(instance.width, 16)
|
|
|
|
# Delete the current file since this is not done by Django, but don't save
|
|
# because the dimension fields are not null=True.
|
|
instance.image.delete(save=False)
|
|
# Override the file by uploading a new one.
|
|
|
|
f = ImageFileForm(
|
|
data={'description': 'Changed it'},
|
|
files={'image': SimpleUploadedFile('test2.png', image_data2)},
|
|
instance=instance,
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/test2.png')
|
|
self.assertEqual(instance.height, 32)
|
|
self.assertEqual(instance.width, 48)
|
|
|
|
# Delete the current file since this is not done by Django, but don't save
|
|
# because the dimension fields are not null=True.
|
|
instance.image.delete(save=False)
|
|
instance.delete()
|
|
|
|
f = ImageFileForm(
|
|
data={'description': 'Changed it'},
|
|
files={'image': SimpleUploadedFile('test2.png', image_data2)},
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/test2.png')
|
|
self.assertEqual(instance.height, 32)
|
|
self.assertEqual(instance.width, 48)
|
|
|
|
# Delete the current file since this is not done by Django, but don't save
|
|
# because the dimension fields are not null=True.
|
|
instance.image.delete(save=False)
|
|
instance.delete()
|
|
|
|
# Test the non-required ImageField
|
|
# Note: In Oracle, we expect a null ImageField to return '' instead of
|
|
# None.
|
|
if connection.features.interprets_empty_strings_as_nulls:
|
|
expected_null_imagefield_repr = ''
|
|
else:
|
|
expected_null_imagefield_repr = None
|
|
|
|
f = OptionalImageFileForm(data={'description': 'Test'})
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, expected_null_imagefield_repr)
|
|
self.assertIsNone(instance.width)
|
|
self.assertIsNone(instance.height)
|
|
|
|
f = OptionalImageFileForm(
|
|
data={'description': 'And a final one'},
|
|
files={'image': SimpleUploadedFile('test3.png', image_data)},
|
|
instance=instance,
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/test3.png')
|
|
self.assertEqual(instance.width, 16)
|
|
self.assertEqual(instance.height, 16)
|
|
|
|
# Editing the instance without re-uploading the image should not affect
|
|
# the image or its width/height properties.
|
|
f = OptionalImageFileForm({'description': 'New Description'}, instance=instance)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.description, 'New Description')
|
|
self.assertEqual(instance.image.name, 'tests/test3.png')
|
|
self.assertEqual(instance.width, 16)
|
|
self.assertEqual(instance.height, 16)
|
|
|
|
# Delete the current file since this is not done by Django.
|
|
instance.image.delete()
|
|
instance.delete()
|
|
|
|
f = OptionalImageFileForm(
|
|
data={'description': 'And a final one'},
|
|
files={'image': SimpleUploadedFile('test4.png', image_data2)}
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/test4.png')
|
|
self.assertEqual(instance.width, 48)
|
|
self.assertEqual(instance.height, 32)
|
|
instance.delete()
|
|
# Test callable upload_to behavior that's dependent on the value of another field in the model
|
|
f = ImageFileForm(
|
|
data={'description': 'And a final one', 'path': 'foo'},
|
|
files={'image': SimpleUploadedFile('test4.png', image_data)},
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'foo/test4.png')
|
|
instance.delete()
|
|
|
|
# Editing an instance that has an image without an extension shouldn't
|
|
# fail validation. First create:
|
|
f = NoExtensionImageFileForm(
|
|
data={'description': 'An image'},
|
|
files={'image': SimpleUploadedFile('test.png', image_data)},
|
|
)
|
|
self.assertTrue(f.is_valid())
|
|
instance = f.save()
|
|
self.assertEqual(instance.image.name, 'tests/no_extension')
|
|
# Then edit:
|
|
f = NoExtensionImageFileForm(data={'description': 'Edited image'}, instance=instance)
|
|
self.assertTrue(f.is_valid())
|
|
|
|
|
|
class ModelOtherFieldTests(SimpleTestCase):
|
|
def test_big_integer_field(self):
|
|
bif = BigIntForm({'biggie': '-9223372036854775808'})
|
|
self.assertTrue(bif.is_valid())
|
|
bif = BigIntForm({'biggie': '-9223372036854775809'})
|
|
self.assertFalse(bif.is_valid())
|
|
self.assertEqual(
|
|
bif.errors,
|
|
{'biggie': ['Ensure this value is greater than or equal to -9223372036854775808.']}
|
|
)
|
|
bif = BigIntForm({'biggie': '9223372036854775807'})
|
|
self.assertTrue(bif.is_valid())
|
|
bif = BigIntForm({'biggie': '9223372036854775808'})
|
|
self.assertFalse(bif.is_valid())
|
|
self.assertEqual(bif.errors, {'biggie': ['Ensure this value is less than or equal to 9223372036854775807.']})
|
|
|
|
def test_url_on_modelform(self):
|
|
"Check basic URL field validation on model forms"
|
|
class HomepageForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Homepage
|
|
fields = '__all__'
|
|
|
|
self.assertFalse(HomepageForm({'url': 'foo'}).is_valid())
|
|
self.assertFalse(HomepageForm({'url': 'http://'}).is_valid())
|
|
self.assertFalse(HomepageForm({'url': 'http://example'}).is_valid())
|
|
self.assertFalse(HomepageForm({'url': 'http://example.'}).is_valid())
|
|
self.assertFalse(HomepageForm({'url': 'http://com.'}).is_valid())
|
|
|
|
self.assertTrue(HomepageForm({'url': 'http://localhost'}).is_valid())
|
|
self.assertTrue(HomepageForm({'url': 'http://example.com'}).is_valid())
|
|
self.assertTrue(HomepageForm({'url': 'http://www.example.com'}).is_valid())
|
|
self.assertTrue(HomepageForm({'url': 'http://www.example.com:8000'}).is_valid())
|
|
self.assertTrue(HomepageForm({'url': 'http://www.example.com/test'}).is_valid())
|
|
self.assertTrue(HomepageForm({'url': 'http://www.example.com:8000/test'}).is_valid())
|
|
self.assertTrue(HomepageForm({'url': 'http://example.com/foo/bar'}).is_valid())
|
|
|
|
def test_modelform_non_editable_field(self):
|
|
"""
|
|
When explicitly including a non-editable field in a ModelForm, the
|
|
error message should be explicit.
|
|
"""
|
|
# 'created', non-editable, is excluded by default
|
|
self.assertNotIn('created', ArticleForm().fields)
|
|
|
|
msg = "'created' cannot be specified for Article model form as it is a non-editable field"
|
|
with self.assertRaisesMessage(FieldError, msg):
|
|
class InvalidArticleForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Article
|
|
fields = ('headline', 'created')
|
|
|
|
def test_http_prefixing(self):
|
|
"""
|
|
If the http:// prefix is omitted on form input, the field adds it again. (Refs #13613)
|
|
"""
|
|
class HomepageForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Homepage
|
|
fields = '__all__'
|
|
|
|
form = HomepageForm({'url': 'example.com'})
|
|
self.assertTrue(form.is_valid())
|
|
self.assertEqual(form.cleaned_data['url'], 'http://example.com')
|
|
|
|
form = HomepageForm({'url': 'example.com/test'})
|
|
self.assertTrue(form.is_valid())
|
|
self.assertEqual(form.cleaned_data['url'], 'http://example.com/test')
|
|
|
|
|
|
class OtherModelFormTests(TestCase):
|
|
def test_media_on_modelform(self):
|
|
# Similar to a regular Form class you can define custom media to be used on
|
|
# the ModelForm.
|
|
f = ModelFormWithMedia()
|
|
self.assertHTMLEqual(
|
|
str(f.media),
|
|
'''<link href="/some/form/css" type="text/css" media="all" rel="stylesheet">
|
|
<script type="text/javascript" src="/some/form/javascript"></script>'''
|
|
)
|
|
|
|
def test_choices_type(self):
|
|
# Choices on CharField and IntegerField
|
|
f = ArticleForm()
|
|
with self.assertRaises(ValidationError):
|
|
f.fields['status'].clean('42')
|
|
|
|
f = ArticleStatusForm()
|
|
with self.assertRaises(ValidationError):
|
|
f.fields['status'].clean('z')
|
|
|
|
def test_prefetch_related_queryset(self):
|
|
"""
|
|
ModelChoiceField should respect a prefetch_related() on its queryset.
|
|
"""
|
|
blue = Colour.objects.create(name='blue')
|
|
red = Colour.objects.create(name='red')
|
|
multicolor_item = ColourfulItem.objects.create()
|
|
multicolor_item.colours.add(blue, red)
|
|
red_item = ColourfulItem.objects.create()
|
|
red_item.colours.add(red)
|
|
|
|
class ColorModelChoiceField(forms.ModelChoiceField):
|
|
def label_from_instance(self, obj):
|
|
return ', '.join(c.name for c in obj.colours.all())
|
|
|
|
field = ColorModelChoiceField(ColourfulItem.objects.prefetch_related('colours'))
|
|
with self.assertNumQueries(3): # would be 4 if prefetch is ignored
|
|
self.assertEqual(tuple(field.choices), (
|
|
('', '---------'),
|
|
(multicolor_item.pk, 'blue, red'),
|
|
(red_item.pk, 'red'),
|
|
))
|
|
|
|
def test_foreignkeys_which_use_to_field(self):
|
|
apple = Inventory.objects.create(barcode=86, name='Apple')
|
|
Inventory.objects.create(barcode=22, name='Pear')
|
|
core = Inventory.objects.create(barcode=87, name='Core', parent=apple)
|
|
|
|
field = forms.ModelChoiceField(Inventory.objects.all(), to_field_name='barcode')
|
|
self.assertEqual(tuple(field.choices), (
|
|
('', '---------'),
|
|
(86, 'Apple'),
|
|
(87, 'Core'),
|
|
(22, 'Pear')))
|
|
|
|
form = InventoryForm(instance=core)
|
|
self.assertHTMLEqual(str(form['parent']), '''<select name="parent" id="id_parent">
|
|
<option value="">---------</option>
|
|
<option value="86" selected>Apple</option>
|
|
<option value="87">Core</option>
|
|
<option value="22">Pear</option>
|
|
</select>''')
|
|
data = model_to_dict(core)
|
|
data['parent'] = '22'
|
|
form = InventoryForm(data=data, instance=core)
|
|
core = form.save()
|
|
self.assertEqual(core.parent.name, 'Pear')
|
|
|
|
class CategoryForm(forms.ModelForm):
|
|
description = forms.CharField()
|
|
|
|
class Meta:
|
|
model = Category
|
|
fields = ['description', 'url']
|
|
|
|
self.assertEqual(list(CategoryForm.base_fields), ['description', 'url'])
|
|
|
|
self.assertHTMLEqual(
|
|
str(CategoryForm()),
|
|
'''<tr><th><label for="id_description">Description:</label></th>
|
|
<td><input type="text" name="description" id="id_description" required></td></tr>
|
|
<tr><th><label for="id_url">The URL:</label></th>
|
|
<td><input id="id_url" type="text" name="url" maxlength="40" required></td></tr>'''
|
|
)
|
|
# to_field_name should also work on ModelMultipleChoiceField ##################
|
|
|
|
field = forms.ModelMultipleChoiceField(Inventory.objects.all(), to_field_name='barcode')
|
|
self.assertEqual(tuple(field.choices), ((86, 'Apple'), (87, 'Core'), (22, 'Pear')))
|
|
self.assertQuerysetEqual(field.clean([86]), ['Apple'])
|
|
|
|
form = SelectInventoryForm({'items': [87, 22]})
|
|
self.assertTrue(form.is_valid())
|
|
self.assertEqual(len(form.cleaned_data), 1)
|
|
self.assertQuerysetEqual(form.cleaned_data['items'], ['Core', 'Pear'])
|
|
|
|
def test_model_field_that_returns_none_to_exclude_itself_with_explicit_fields(self):
|
|
self.assertEqual(list(CustomFieldForExclusionForm.base_fields), ['name'])
|
|
self.assertHTMLEqual(
|
|
str(CustomFieldForExclusionForm()),
|
|
'''<tr><th><label for="id_name">Name:</label></th>
|
|
<td><input id="id_name" type="text" name="name" maxlength="10" required></td></tr>'''
|
|
)
|
|
|
|
def test_iterable_model_m2m(self):
|
|
class ColourfulItemForm(forms.ModelForm):
|
|
class Meta:
|
|
model = ColourfulItem
|
|
fields = '__all__'
|
|
|
|
colour = Colour.objects.create(name='Blue')
|
|
form = ColourfulItemForm()
|
|
self.maxDiff = 1024
|
|
self.assertHTMLEqual(
|
|
form.as_p(),
|
|
"""<p><label for="id_name">Name:</label> <input id="id_name" type="text" name="name" maxlength="50" required></p>
|
|
<p><label for="id_colours">Colours:</label>
|
|
<select multiple name="colours" id="id_colours" required>
|
|
<option value="%(blue_pk)s">Blue</option>
|
|
</select></p>"""
|
|
% {'blue_pk': colour.pk})
|
|
|
|
def test_callable_field_default(self):
|
|
class PublicationDefaultsForm(forms.ModelForm):
|
|
class Meta:
|
|
model = PublicationDefaults
|
|
fields = ('title', 'date_published', 'mode', 'category')
|
|
|
|
self.maxDiff = 2000
|
|
form = PublicationDefaultsForm()
|
|
today_str = str(datetime.date.today())
|
|
self.assertHTMLEqual(
|
|
form.as_p(),
|
|
"""
|
|
<p><label for="id_title">Title:</label>
|
|
<input id="id_title" maxlength="30" name="title" type="text" required></p>
|
|
<p><label for="id_date_published">Date published:</label>
|
|
<input id="id_date_published" name="date_published" type="text" value="{0}" required>
|
|
<input id="initial-id_date_published" name="initial-date_published" type="hidden" value="{0}"></p>
|
|
<p><label for="id_mode">Mode:</label> <select id="id_mode" name="mode">
|
|
<option value="di" selected>direct</option>
|
|
<option value="de">delayed</option></select>
|
|
<input id="initial-id_mode" name="initial-mode" type="hidden" value="di"></p>
|
|
<p><label for="id_category">Category:</label> <select id="id_category" name="category">
|
|
<option value="1">Games</option>
|
|
<option value="2">Comics</option>
|
|
<option value="3" selected>Novel</option></select>
|
|
<input id="initial-id_category" name="initial-category" type="hidden" value="3">
|
|
""".format(today_str)
|
|
)
|
|
empty_data = {
|
|
'title': '',
|
|
'date_published': today_str,
|
|
'initial-date_published': today_str,
|
|
'mode': 'di',
|
|
'initial-mode': 'di',
|
|
'category': '3',
|
|
'initial-category': '3',
|
|
}
|
|
bound_form = PublicationDefaultsForm(empty_data)
|
|
self.assertFalse(bound_form.has_changed())
|
|
|
|
|
|
class ModelFormCustomErrorTests(SimpleTestCase):
|
|
def test_custom_error_messages(self):
|
|
data = {'name1': '@#$!!**@#$', 'name2': '@#$!!**@#$'}
|
|
errors = CustomErrorMessageForm(data).errors
|
|
self.assertHTMLEqual(
|
|
str(errors['name1']),
|
|
'<ul class="errorlist"><li>Form custom error message.</li></ul>'
|
|
)
|
|
self.assertHTMLEqual(
|
|
str(errors['name2']),
|
|
'<ul class="errorlist"><li>Model custom error message.</li></ul>'
|
|
)
|
|
|
|
def test_model_clean_error_messages(self):
|
|
data = {'name1': 'FORBIDDEN_VALUE', 'name2': 'ABC'}
|
|
form = CustomErrorMessageForm(data)
|
|
self.assertFalse(form.is_valid())
|
|
self.assertHTMLEqual(
|
|
str(form.errors['name1']),
|
|
'<ul class="errorlist"><li>Model.clean() error messages.</li></ul>'
|
|
)
|
|
data = {'name1': 'FORBIDDEN_VALUE2', 'name2': 'ABC'}
|
|
form = CustomErrorMessageForm(data)
|
|
self.assertFalse(form.is_valid())
|
|
self.assertHTMLEqual(
|
|
str(form.errors['name1']),
|
|
'<ul class="errorlist"><li>Model.clean() error messages (simpler syntax).</li></ul>'
|
|
)
|
|
data = {'name1': 'GLOBAL_ERROR', 'name2': 'ABC'}
|
|
form = CustomErrorMessageForm(data)
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(form.errors['__all__'], ['Global error message.'])
|
|
|
|
|
|
class CustomCleanTests(TestCase):
|
|
def test_override_clean(self):
|
|
"""
|
|
Regression for #12596: Calling super from ModelForm.clean() should be
|
|
optional.
|
|
"""
|
|
class TripleFormWithCleanOverride(forms.ModelForm):
|
|
class Meta:
|
|
model = Triple
|
|
fields = '__all__'
|
|
|
|
def clean(self):
|
|
if not self.cleaned_data['left'] == self.cleaned_data['right']:
|
|
raise forms.ValidationError('Left and right should be equal')
|
|
return self.cleaned_data
|
|
|
|
form = TripleFormWithCleanOverride({'left': 1, 'middle': 2, 'right': 1})
|
|
self.assertTrue(form.is_valid())
|
|
# form.instance.left will be None if the instance was not constructed
|
|
# by form.full_clean().
|
|
self.assertEqual(form.instance.left, 1)
|
|
|
|
def test_model_form_clean_applies_to_model(self):
|
|
"""
|
|
Regression test for #12960. Make sure the cleaned_data returned from
|
|
ModelForm.clean() is applied to the model instance.
|
|
"""
|
|
class CategoryForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Category
|
|
fields = '__all__'
|
|
|
|
def clean(self):
|
|
self.cleaned_data['name'] = self.cleaned_data['name'].upper()
|
|
return self.cleaned_data
|
|
|
|
data = {'name': 'Test', 'slug': 'test', 'url': '/test'}
|
|
form = CategoryForm(data)
|
|
category = form.save()
|
|
self.assertEqual(category.name, 'TEST')
|
|
|
|
|
|
class ModelFormInheritanceTests(SimpleTestCase):
|
|
def test_form_subclass_inheritance(self):
|
|
class Form(forms.Form):
|
|
age = forms.IntegerField()
|
|
|
|
class ModelForm(forms.ModelForm, Form):
|
|
class Meta:
|
|
model = Writer
|
|
fields = '__all__'
|
|
|
|
self.assertEqual(list(ModelForm().fields), ['name', 'age'])
|
|
|
|
def test_field_removal(self):
|
|
class ModelForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Writer
|
|
fields = '__all__'
|
|
|
|
class Mixin:
|
|
age = None
|
|
|
|
class Form(forms.Form):
|
|
age = forms.IntegerField()
|
|
|
|
class Form2(forms.Form):
|
|
foo = forms.IntegerField()
|
|
|
|
self.assertEqual(list(ModelForm().fields), ['name'])
|
|
self.assertEqual(list(type('NewForm', (Mixin, Form), {})().fields), [])
|
|
self.assertEqual(list(type('NewForm', (Form2, Mixin, Form), {})().fields), ['foo'])
|
|
self.assertEqual(list(type('NewForm', (Mixin, ModelForm, Form), {})().fields), ['name'])
|
|
self.assertEqual(list(type('NewForm', (ModelForm, Mixin, Form), {})().fields), ['name'])
|
|
self.assertEqual(list(type('NewForm', (ModelForm, Form, Mixin), {})().fields), ['name', 'age'])
|
|
self.assertEqual(list(type('NewForm', (ModelForm, Form), {'age': None})().fields), ['name'])
|
|
|
|
def test_field_removal_name_clashes(self):
|
|
"""
|
|
Form fields can be removed in subclasses by setting them to None
|
|
(#22510).
|
|
"""
|
|
class MyForm(forms.ModelForm):
|
|
media = forms.CharField()
|
|
|
|
class Meta:
|
|
model = Writer
|
|
fields = '__all__'
|
|
|
|
class SubForm(MyForm):
|
|
media = None
|
|
|
|
self.assertIn('media', MyForm().fields)
|
|
self.assertNotIn('media', SubForm().fields)
|
|
self.assertTrue(hasattr(MyForm, 'media'))
|
|
self.assertTrue(hasattr(SubForm, 'media'))
|
|
|
|
|
|
class StumpJokeForm(forms.ModelForm):
|
|
class Meta:
|
|
model = StumpJoke
|
|
fields = '__all__'
|
|
|
|
|
|
class CustomFieldWithQuerysetButNoLimitChoicesTo(forms.Field):
|
|
queryset = 42
|
|
|
|
|
|
class StumpJokeWithCustomFieldForm(forms.ModelForm):
|
|
custom = CustomFieldWithQuerysetButNoLimitChoicesTo()
|
|
|
|
class Meta:
|
|
model = StumpJoke
|
|
fields = ()
|
|
|
|
|
|
class LimitChoicesToTests(TestCase):
|
|
"""
|
|
Tests the functionality of ``limit_choices_to``.
|
|
"""
|
|
@classmethod
|
|
def setUpTestData(cls):
|
|
cls.threepwood = Character.objects.create(
|
|
username='threepwood',
|
|
last_action=datetime.datetime.today() + datetime.timedelta(days=1),
|
|
)
|
|
cls.marley = Character.objects.create(
|
|
username='marley',
|
|
last_action=datetime.datetime.today() - datetime.timedelta(days=1),
|
|
)
|
|
|
|
def test_limit_choices_to_callable_for_fk_rel(self):
|
|
"""
|
|
A ForeignKey can use limit_choices_to as a callable (#2554).
|
|
"""
|
|
stumpjokeform = StumpJokeForm()
|
|
self.assertSequenceEqual(stumpjokeform.fields['most_recently_fooled'].queryset, [self.threepwood])
|
|
|
|
def test_limit_choices_to_callable_for_m2m_rel(self):
|
|
"""
|
|
A ManyToManyField can use limit_choices_to as a callable (#2554).
|
|
"""
|
|
stumpjokeform = StumpJokeForm()
|
|
self.assertSequenceEqual(stumpjokeform.fields['most_recently_fooled'].queryset, [self.threepwood])
|
|
|
|
def test_custom_field_with_queryset_but_no_limit_choices_to(self):
|
|
"""
|
|
A custom field with a `queryset` attribute but no `limit_choices_to`
|
|
works (#23795).
|
|
"""
|
|
f = StumpJokeWithCustomFieldForm()
|
|
self.assertEqual(f.fields['custom'].queryset, 42)
|
|
|
|
def test_fields_for_model_applies_limit_choices_to(self):
|
|
fields = fields_for_model(StumpJoke, ['has_fooled_today'])
|
|
self.assertSequenceEqual(fields['has_fooled_today'].queryset, [self.threepwood])
|
|
|
|
def test_callable_called_each_time_form_is_instantiated(self):
|
|
field = StumpJokeForm.base_fields['most_recently_fooled']
|
|
with mock.patch.object(field, 'limit_choices_to') as today_callable_dict:
|
|
StumpJokeForm()
|
|
self.assertEqual(today_callable_dict.call_count, 1)
|
|
StumpJokeForm()
|
|
self.assertEqual(today_callable_dict.call_count, 2)
|
|
StumpJokeForm()
|
|
self.assertEqual(today_callable_dict.call_count, 3)
|
|
|
|
|
|
class FormFieldCallbackTests(SimpleTestCase):
|
|
|
|
def test_baseform_with_widgets_in_meta(self):
|
|
"""Regression for #13095: Using base forms with widgets defined in Meta should not raise errors."""
|
|
widget = forms.Textarea()
|
|
|
|
class BaseForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Person
|
|
widgets = {'name': widget}
|
|
fields = "__all__"
|
|
|
|
Form = modelform_factory(Person, form=BaseForm)
|
|
self.assertIsInstance(Form.base_fields['name'].widget, forms.Textarea)
|
|
|
|
def test_factory_with_widget_argument(self):
|
|
""" Regression for #15315: modelform_factory should accept widgets
|
|
argument
|
|
"""
|
|
widget = forms.Textarea()
|
|
|
|
# Without a widget should not set the widget to textarea
|
|
Form = modelform_factory(Person, fields="__all__")
|
|
self.assertNotEqual(Form.base_fields['name'].widget.__class__, forms.Textarea)
|
|
|
|
# With a widget should not set the widget to textarea
|
|
Form = modelform_factory(Person, fields="__all__", widgets={'name': widget})
|
|
self.assertEqual(Form.base_fields['name'].widget.__class__, forms.Textarea)
|
|
|
|
def test_modelform_factory_without_fields(self):
|
|
""" Regression for #19733 """
|
|
message = (
|
|
"Calling modelform_factory without defining 'fields' or 'exclude' "
|
|
"explicitly is prohibited."
|
|
)
|
|
with self.assertRaisesMessage(ImproperlyConfigured, message):
|
|
modelform_factory(Person)
|
|
|
|
def test_modelform_factory_with_all_fields(self):
|
|
""" Regression for #19733 """
|
|
form = modelform_factory(Person, fields="__all__")
|
|
self.assertEqual(list(form.base_fields), ["name"])
|
|
|
|
def test_custom_callback(self):
|
|
"""A custom formfield_callback is used if provided"""
|
|
callback_args = []
|
|
|
|
def callback(db_field, **kwargs):
|
|
callback_args.append((db_field, kwargs))
|
|
return db_field.formfield(**kwargs)
|
|
|
|
widget = forms.Textarea()
|
|
|
|
class BaseForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Person
|
|
widgets = {'name': widget}
|
|
fields = "__all__"
|
|
|
|
modelform_factory(Person, form=BaseForm, formfield_callback=callback)
|
|
id_field, name_field = Person._meta.fields
|
|
|
|
self.assertEqual(callback_args, [(id_field, {}), (name_field, {'widget': widget})])
|
|
|
|
def test_bad_callback(self):
|
|
# A bad callback provided by user still gives an error
|
|
with self.assertRaises(TypeError):
|
|
modelform_factory(Person, fields="__all__", formfield_callback='not a function or callable')
|
|
|
|
def test_inherit_after_custom_callback(self):
|
|
def callback(db_field, **kwargs):
|
|
if isinstance(db_field, models.CharField):
|
|
return forms.CharField(widget=forms.Textarea)
|
|
return db_field.formfield(**kwargs)
|
|
|
|
class BaseForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Person
|
|
fields = '__all__'
|
|
|
|
NewForm = modelform_factory(Person, form=BaseForm, formfield_callback=callback)
|
|
|
|
class InheritedForm(NewForm):
|
|
pass
|
|
|
|
for name in NewForm.base_fields:
|
|
self.assertEqual(
|
|
type(InheritedForm.base_fields[name].widget),
|
|
type(NewForm.base_fields[name].widget)
|
|
)
|
|
|
|
|
|
class LocalizedModelFormTest(TestCase):
|
|
def test_model_form_applies_localize_to_some_fields(self):
|
|
class PartiallyLocalizedTripleForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Triple
|
|
localized_fields = ('left', 'right',)
|
|
fields = '__all__'
|
|
|
|
f = PartiallyLocalizedTripleForm({'left': 10, 'middle': 10, 'right': 10})
|
|
self.assertTrue(f.is_valid())
|
|
self.assertTrue(f.fields['left'].localize)
|
|
self.assertFalse(f.fields['middle'].localize)
|
|
self.assertTrue(f.fields['right'].localize)
|
|
|
|
def test_model_form_applies_localize_to_all_fields(self):
|
|
class FullyLocalizedTripleForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Triple
|
|
localized_fields = '__all__'
|
|
fields = '__all__'
|
|
|
|
f = FullyLocalizedTripleForm({'left': 10, 'middle': 10, 'right': 10})
|
|
self.assertTrue(f.is_valid())
|
|
self.assertTrue(f.fields['left'].localize)
|
|
self.assertTrue(f.fields['middle'].localize)
|
|
self.assertTrue(f.fields['right'].localize)
|
|
|
|
def test_model_form_refuses_arbitrary_string(self):
|
|
msg = (
|
|
"BrokenLocalizedTripleForm.Meta.localized_fields "
|
|
"cannot be a string. Did you mean to type: ('foo',)?"
|
|
)
|
|
with self.assertRaisesMessage(TypeError, msg):
|
|
class BrokenLocalizedTripleForm(forms.ModelForm):
|
|
class Meta:
|
|
model = Triple
|
|
localized_fields = "foo"
|
|
|
|
|
|
class CustomMetaclass(ModelFormMetaclass):
|
|
def __new__(cls, name, bases, attrs):
|
|
new = super().__new__(cls, name, bases, attrs)
|
|
new.base_fields = {}
|
|
return new
|
|
|
|
|
|
class CustomMetaclassForm(forms.ModelForm, metaclass=CustomMetaclass):
|
|
pass
|
|
|
|
|
|
class CustomMetaclassTestCase(SimpleTestCase):
|
|
def test_modelform_factory_metaclass(self):
|
|
new_cls = modelform_factory(Person, fields="__all__", form=CustomMetaclassForm)
|
|
self.assertEqual(new_cls.base_fields, {})
|
|
|
|
|
|
class StrictAssignmentTests(SimpleTestCase):
|
|
"""
|
|
Should a model do anything special with __setattr__() or descriptors which
|
|
raise a ValidationError, a model form should catch the error (#24706).
|
|
"""
|
|
|
|
def test_setattr_raises_validation_error_field_specific(self):
|
|
"""
|
|
A model ValidationError using the dict form should put the error
|
|
message into the correct key of form.errors.
|
|
"""
|
|
form_class = modelform_factory(model=StrictAssignmentFieldSpecific, fields=['title'])
|
|
form = form_class(data={'title': 'testing setattr'}, files=None)
|
|
# This line turns on the ValidationError; it avoids the model erroring
|
|
# when its own __init__() is called when creating form.instance.
|
|
form.instance._should_error = True
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(form.errors, {
|
|
'title': ['Cannot set attribute', 'This field cannot be blank.']
|
|
})
|
|
|
|
def test_setattr_raises_validation_error_non_field(self):
|
|
"""
|
|
A model ValidationError not using the dict form should put the error
|
|
message into __all__ (i.e. non-field errors) on the form.
|
|
"""
|
|
form_class = modelform_factory(model=StrictAssignmentAll, fields=['title'])
|
|
form = form_class(data={'title': 'testing setattr'}, files=None)
|
|
# This line turns on the ValidationError; it avoids the model erroring
|
|
# when its own __init__() is called when creating form.instance.
|
|
form.instance._should_error = True
|
|
self.assertFalse(form.is_valid())
|
|
self.assertEqual(form.errors, {
|
|
'__all__': ['Cannot set attribute'],
|
|
'title': ['This field cannot be blank.']
|
|
})
|
|
|
|
|
|
class ModelToDictTests(TestCase):
|
|
def test_many_to_many(self):
|
|
"""Data for a ManyToManyField is a list rather than a lazy QuerySet."""
|
|
blue = Colour.objects.create(name='blue')
|
|
red = Colour.objects.create(name='red')
|
|
item = ColourfulItem.objects.create()
|
|
item.colours.set([blue])
|
|
data = model_to_dict(item)['colours']
|
|
self.assertEqual(data, [blue])
|
|
item.colours.set([red])
|
|
# If data were a QuerySet, it would be reevaluated here and give "red"
|
|
# instead of the original value.
|
|
self.assertEqual(data, [blue])
|