from datetime import date from django import db from django import forms from django.forms.models import modelform_factory, ModelChoiceField from django.conf import settings from django.test import TestCase from django.core.exceptions import FieldError from models import Person, RealPerson, Triple, FilePathModel, Article, \ Publication, CustomFF, Author, Author1, Homepage class ModelMultipleChoiceFieldTests(TestCase): def setUp(self): self.old_debug = settings.DEBUG settings.DEBUG = True def tearDown(self): settings.DEBUG = self.old_debug def test_model_multiple_choice_number_of_queries(self): """ Test that ModelMultipleChoiceField does O(1) queries instead of O(n) (#10156). """ for i in range(30): Person.objects.create(name="Person %s" % i) db.reset_queries() f = forms.ModelMultipleChoiceField(queryset=Person.objects.all()) selected = f.clean([1, 3, 5, 7, 9]) self.assertEquals(len(db.connection.queries), 1) class TripleForm(forms.ModelForm): class Meta: model = Triple class UniqueTogetherTests(TestCase): 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). """ Triple.objects.create(left=1, middle=2, right=3) form = TripleForm({'left': '1', 'middle': '2', 'right': '3'}) self.failIf(form.is_valid()) form = TripleForm({'left': '1', 'middle': '3', 'right': '1'}) self.failUnless(form.is_valid()) class TripleFormWithCleanOverride(forms.ModelForm): class Meta: model = Triple 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 class OverrideCleanTests(TestCase): def test_override_clean(self): """ Regression for #12596: Calling super from ModelForm.clean() should be optional. """ form = TripleFormWithCleanOverride({'left': 1, 'middle': 2, 'right': 1}) self.failUnless(form.is_valid()) # form.instance.left will be None if the instance was not constructed # by form.full_clean(). self.assertEquals(form.instance.left, 1) # Regression test for #12960. # Make sure the cleaned_data returned from ModelForm.clean() is applied to the # model instance. class PublicationForm(forms.ModelForm): def clean(self): self.cleaned_data['title'] = self.cleaned_data['title'].upper() return self.cleaned_data class Meta: model = Publication class ModelFormCleanTest(TestCase): def test_model_form_clean_applies_to_model(self): data = {'title': 'test', 'date_published': '2010-2-25'} form = PublicationForm(data) publication = form.save() self.assertEqual(publication.title, 'TEST') class FPForm(forms.ModelForm): class Meta: model = FilePathModel class FilePathFieldTests(TestCase): def test_file_path_field_blank(self): """ Regression test for #8842: FilePathField(blank=True) """ form = FPForm() names = [p[1] for p in form['path'].field.choices] names.sort() self.assertEqual(names, ['---------', '__init__.py', 'models.py', 'tests.py']) class ManyToManyCallableInitialTests(TestCase): def test_callable(self): "Regression for #10349: A callable can be provided as the initial value for an m2m field" # Set up a callable initial value def formfield_for_dbfield(db_field, **kwargs): if db_field.name == 'publications': kwargs['initial'] = lambda: Publication.objects.all().order_by('date_published')[:2] return db_field.formfield(**kwargs) # Set up some Publications to use as data Publication(title="First Book", date_published=date(2007,1,1)).save() Publication(title="Second Book", date_published=date(2008,1,1)).save() Publication(title="Third Book", date_published=date(2009,1,1)).save() # Create a ModelForm, instantiate it, and check that the output is as expected ModelForm = modelform_factory(Article, formfield_callback=formfield_for_dbfield) form = ModelForm() self.assertEquals(form.as_ul(), u"""
  • Hold down "Control", or "Command" on a Mac, to select more than one.
  • """) class CFFForm(forms.ModelForm): class Meta: model = CustomFF class CustomFieldSaveTests(TestCase): def test_save(self): "Regression for #11149: save_form_data should be called only once" # 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() class ModelChoiceIteratorTests(TestCase): def test_len(self): class Form(forms.ModelForm): class Meta: model = Article fields = ["publications"] Publication.objects.create(title="Pravda", date_published=date(1991, 8, 22)) f = Form() self.assertEqual(len(f.fields["publications"].choices), 1) class RealPersonForm(forms.ModelForm): class Meta: model = RealPerson class CustomModelFormSaveMethod(TestCase): def test_string_message(self): data = {'name': 'anonymous'} form = RealPersonForm(data) self.assertEqual(form.is_valid(), False) self.assertEqual(form.errors['__all__'], ['Please specify a real name.']) class ModelClassTests(TestCase): def test_no_model_class(self): class NoModelModelForm(forms.ModelForm): pass self.assertRaises(ValueError, NoModelModelForm) class OneToOneFieldTests(TestCase): 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=date(1991, 8, 22)) author = Author.objects.create(publication=publication, full_name='John Doe') form = AuthorForm({'publication':u'', 'full_name':'John Doe'}, instance=author) self.assert_(form.is_valid()) self.assertEqual(form.cleaned_data['publication'], None) author = form.save() # author object returned from form still retains original publication object # that's why we need to retreive it from database again new_author = Author.objects.get(pk=author.pk) self.assertEqual(new_author.publication, None) 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=date(1991, 8, 22)) author = Author1.objects.create(publication=publication, full_name='John Doe') form = AuthorForm({'publication':u'', 'full_name':'John Doe'}, instance=author) self.assert_(not form.is_valid()) class ModelChoiceForm(forms.Form): person = ModelChoiceField(Person.objects.all()) class TestTicket11183(TestCase): def test_11183(self): form1 = ModelChoiceForm() field1 = form1.fields['person'] # To allow the widget to change the queryset of field1.widget.choices correctly, # without affecting other forms, the following must hold: self.assert_(field1 is not ModelChoiceForm.base_fields['person']) self.assert_(field1.widget.choices.field is field1) class HomepageForm(forms.ModelForm): class Meta: model = Homepage class URLFieldTests(TestCase): def test_url_on_modelform(self): "Check basic URL field validation on model forms" 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_http_prefixing(self): "If the http:// prefix is omitted on form input, the field adds it again. (Refs #13613)" form = HomepageForm({'url': 'example.com'}) form.is_valid() # self.assertTrue(form.is_valid()) # self.assertEquals(form.cleaned_data['url'], 'http://example.com/') form = HomepageForm({'url': 'example.com/test'}) form.is_valid() # self.assertTrue(form.is_valid()) # self.assertEquals(form.cleaned_data['url'], 'http://example.com/test') class FormFieldCallbackTests(TestCase): 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} Form = modelform_factory(Person, form=BaseForm) self.assertTrue(Form.base_fields['name'].widget is widget) def test_custom_callback(self): """Test that 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} _ = 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 self.assertRaises(TypeError, modelform_factory, Person, formfield_callback='not a function or callable') class InvalidFieldAndFactory(TestCase): """ Tests for #11905 """ def test_extra_field_model_form(self): try: class ExtraPersonForm(forms.ModelForm): """ ModelForm with an extra field """ age = forms.IntegerField() class Meta: model = Person fields = ('name', 'no-field') except FieldError, e: # Make sure the exception contains some reference to the # field responsible for the problem. self.assertTrue('no-field' in e.args[0]) else: self.fail('Invalid "no-field" field not caught') def test_extra_declared_field_model_form(self): try: class ExtraPersonForm(forms.ModelForm): """ ModelForm with an extra field """ age = forms.IntegerField() class Meta: model = Person fields = ('name', 'age') except FieldError: self.fail('Declarative field raised FieldError incorrectly') def test_extra_field_modelform_factory(self): self.assertRaises(FieldError, modelform_factory, Person, fields=['no-field', 'name'])