parts/django/tests/regressiontests/model_formsets_regress/tests.py
changeset 307 c6bca38c1cbf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/parts/django/tests/regressiontests/model_formsets_regress/tests.py	Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,218 @@
+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)
+
+
+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)