from django.test import TestCase from django.forms.models import modelformset_factory from modeltests.model_formsets.models import Poet, Poem class DeletionTests(TestCase): def test_deletion(self): PoetFormSet = modelformset_factory(Poet, can_delete=True) poet = Poet.objects.create(name='test') data = { 'form-TOTAL_FORMS': u'1', 'form-INITIAL_FORMS': u'1', 'form-0-id': str(poet.pk), 'form-0-name': u'test', 'form-0-DELETE': u'on', } formset = PoetFormSet(data, queryset=Poet.objects.all()) formset.save() self.failUnless(formset.is_valid()) self.assertEqual(Poet.objects.count(), 0) def test_add_form_deletion_when_invalid(self): """ Make sure that an add form that is filled out, but marked for deletion doesn't cause validation errors. """ PoetFormSet = modelformset_factory(Poet, can_delete=True) data = { 'form-TOTAL_FORMS': u'1', 'form-INITIAL_FORMS': u'0', 'form-0-id': u'', 'form-0-name': u'x' * 1000, } formset = PoetFormSet(data, queryset=Poet.objects.all()) # Make sure this form doesn't pass validation. self.assertEqual(formset.is_valid(), False) self.assertEqual(Poet.objects.count(), 0) # Then make sure that it *does* pass validation and delete the object, # even though the data isn't actually valid. data['form-0-DELETE'] = 'on' formset = PoetFormSet(data, queryset=Poet.objects.all()) self.assertEqual(formset.is_valid(), True) formset.save() self.assertEqual(Poet.objects.count(), 0) def test_change_form_deletion_when_invalid(self): """ Make sure that an add form that is filled out, but marked for deletion doesn't cause validation errors. """ PoetFormSet = modelformset_factory(Poet, can_delete=True) poet = Poet.objects.create(name='test') data = { 'form-TOTAL_FORMS': u'1', 'form-INITIAL_FORMS': u'1', 'form-0-id': u'1', 'form-0-name': u'x' * 1000, } formset = PoetFormSet(data, queryset=Poet.objects.all()) # Make sure this form doesn't pass validation. self.assertEqual(formset.is_valid(), False) self.assertEqual(Poet.objects.count(), 1) # Then make sure that it *does* pass validation and delete the object, # even though the data isn't actually valid. data['form-0-DELETE'] = 'on' formset = PoetFormSet(data, queryset=Poet.objects.all()) self.assertEqual(formset.is_valid(), True) formset.save() self.assertEqual(Poet.objects.count(), 0)