from django import forms from django.forms.models import modelform_factory, inlineformset_factory, modelformset_factory from django.test import TestCase from models import User, UserSite, Restaurant, Manager class InlineFormsetTests(TestCase): def test_formset_over_to_field(self): "A formset over a ForeignKey with a to_field can be saved. Regression for #10243" Form = modelform_factory(User) FormSet = inlineformset_factory(User, UserSite) # Instantiate the Form and FormSet to prove # you can create a form with no data form = Form() form_set = FormSet(instance=User()) # Now create a new User and UserSite instance data = { 'serial': u'1', 'username': u'apollo13', 'usersite_set-TOTAL_FORMS': u'1', 'usersite_set-INITIAL_FORMS': u'0', 'usersite_set-MAX_NUM_FORMS': u'0', 'usersite_set-0-data': u'10', 'usersite_set-0-user': u'apollo13' } user = User() form = Form(data) if form.is_valid(): user = form.save() else: self.fail('Errors found on form:%s' % form_set) form_set = FormSet(data, instance=user) if form_set.is_valid(): form_set.save() usersite = UserSite.objects.all().values() self.assertEqual(usersite[0]['data'], 10) self.assertEqual(usersite[0]['user_id'], u'apollo13') else: self.fail('Errors found on formset:%s' % form_set.errors) # Now update the UserSite instance data = { 'usersite_set-TOTAL_FORMS': u'1', 'usersite_set-INITIAL_FORMS': u'1', 'usersite_set-MAX_NUM_FORMS': u'0', 'usersite_set-0-id': unicode(usersite[0]['id']), 'usersite_set-0-data': u'11', 'usersite_set-0-user': u'apollo13' } form_set = FormSet(data, instance=user) if form_set.is_valid(): form_set.save() usersite = UserSite.objects.all().values() self.assertEqual(usersite[0]['data'], 11) self.assertEqual(usersite[0]['user_id'], u'apollo13') else: self.fail('Errors found on formset:%s' % form_set.errors) # Now add a new UserSite instance data = { 'usersite_set-TOTAL_FORMS': u'2', 'usersite_set-INITIAL_FORMS': u'1', 'usersite_set-MAX_NUM_FORMS': u'0', 'usersite_set-0-id': unicode(usersite[0]['id']), 'usersite_set-0-data': u'11', 'usersite_set-0-user': u'apollo13', 'usersite_set-1-data': u'42', 'usersite_set-1-user': u'apollo13' } form_set = FormSet(data, instance=user) if form_set.is_valid(): form_set.save() usersite = UserSite.objects.all().values().order_by('data') self.assertEqual(usersite[0]['data'], 11) self.assertEqual(usersite[0]['user_id'], u'apollo13') self.assertEqual(usersite[1]['data'], 42) self.assertEqual(usersite[1]['user_id'], u'apollo13') else: self.fail('Errors found on formset:%s' % form_set.errors) def test_formset_over_inherited_model(self): "A formset over a ForeignKey with a to_field can be saved. Regression for #11120" Form = modelform_factory(Restaurant) FormSet = inlineformset_factory(Restaurant, Manager) # Instantiate the Form and FormSet to prove # you can create a form with no data form = Form() form_set = FormSet(instance=Restaurant()) # Now create a new Restaurant and Manager instance data = { 'name': u"Guido's House of Pasta", 'manager_set-TOTAL_FORMS': u'1', 'manager_set-INITIAL_FORMS': u'0', 'manager_set-MAX_NUM_FORMS': u'0', 'manager_set-0-name': u'Guido Van Rossum' } restaurant = User() form = Form(data) if form.is_valid(): restaurant = form.save() else: self.fail('Errors found on form:%s' % form_set) form_set = FormSet(data, instance=restaurant) if form_set.is_valid(): form_set.save() manager = Manager.objects.all().values() self.assertEqual(manager[0]['name'], 'Guido Van Rossum') else: self.fail('Errors found on formset:%s' % form_set.errors) # Now update the Manager instance data = { 'manager_set-TOTAL_FORMS': u'1', 'manager_set-INITIAL_FORMS': u'1', 'manager_set-MAX_NUM_FORMS': u'0', 'manager_set-0-id': unicode(manager[0]['id']), 'manager_set-0-name': u'Terry Gilliam' } form_set = FormSet(data, instance=restaurant) if form_set.is_valid(): form_set.save() manager = Manager.objects.all().values() self.assertEqual(manager[0]['name'], 'Terry Gilliam') else: self.fail('Errors found on formset:%s' % form_set.errors) # Now add a new Manager instance data = { 'manager_set-TOTAL_FORMS': u'2', 'manager_set-INITIAL_FORMS': u'1', 'manager_set-MAX_NUM_FORMS': u'0', 'manager_set-0-id': unicode(manager[0]['id']), 'manager_set-0-name': u'Terry Gilliam', 'manager_set-1-name': u'John Cleese' } form_set = FormSet(data, instance=restaurant) if form_set.is_valid(): form_set.save() manager = Manager.objects.all().values().order_by('name') self.assertEqual(manager[0]['name'], 'John Cleese') self.assertEqual(manager[1]['name'], 'Terry Gilliam') else: self.fail('Errors found on formset:%s' % form_set.errors) def test_formset_with_none_instance(self): "A formset with instance=None can be created. Regression for #11872" Form = modelform_factory(User) FormSet = inlineformset_factory(User, UserSite) # Instantiate the Form and FormSet to prove # you can create a formset with an instance of None form = Form(instance=None) formset = FormSet(instance=None) def test_empty_fields_on_modelformset(self): "No fields passed to modelformset_factory should result in no fields on returned forms except for the id. See #14119." UserFormSet = modelformset_factory(User, fields=()) formset = UserFormSet() for form in formset.forms: self.assertTrue('id' in form.fields) self.assertEqual(len(form.fields), 1) class CustomWidget(forms.CharField): pass class UserSiteForm(forms.ModelForm): class Meta: model = UserSite widgets = {'data': CustomWidget} class Callback(object): def __init__(self): self.log = [] def __call__(self, db_field, **kwargs): self.log.append((db_field, kwargs)) return db_field.formfield(**kwargs) class FormfieldCallbackTests(TestCase): """ Regression for #13095: Using base forms with widgets defined in Meta should not raise errors. """ def test_inlineformset_factory_default(self): Formset = inlineformset_factory(User, UserSite, form=UserSiteForm) form = Formset().forms[0] self.assertTrue(isinstance(form['data'].field.widget, CustomWidget)) def test_modelformset_factory_default(self): Formset = modelformset_factory(UserSite, form=UserSiteForm) form = Formset().forms[0] self.assertTrue(isinstance(form['data'].field.widget, CustomWidget)) def assertCallbackCalled(self, callback): id_field, user_field, data_field = UserSite._meta.fields expected_log = [ (id_field, {}), (user_field, {}), (data_field, {'widget': CustomWidget}), ] self.assertEqual(callback.log, expected_log) def test_inlineformset_custom_callback(self): callback = Callback() inlineformset_factory(User, UserSite, form=UserSiteForm, formfield_callback=callback) self.assertCallbackCalled(callback) def test_modelformset_custom_callback(self): callback = Callback() modelformset_factory(UserSite, form=UserSiteForm, formfield_callback=callback) self.assertCallbackCalled(callback)