Fixed #19733 - deprecated ModelForms without 'fields' or 'exclude', and added '__all__' shortcut

This also updates all dependent functionality, including modelform_factory
 and modelformset_factory, and the generic views `ModelFormMixin`,
 `CreateView` and `UpdateView` which gain a new `fields` attribute.

18 files changed, 283 insertions, 89 deletions

diff --git a/tests/admin_validation/tests.py b/tests/admin_validation/tests.py
index 6ce0ee7e03..16f73c6390 100644
--- a/tests/admin_validation/tests.py
+++ b/tests/admin_validation/tests.py
@@ -285,6 +285,8 @@ class ValidationTestCase(TestCase):
             extra_data = forms.CharField()
             class Meta:
                 model = Song
+                fields = '__all__'
+
 
         class FieldsOnFormOnlyAdmin(admin.ModelAdmin):
             form = SongForm
diff --git a/tests/bug639/models.py b/tests/bug639/models.py
index e641555c87..fa8e7d2c07 100644
--- a/tests/bug639/models.py
+++ b/tests/bug639/models.py
@@ -25,3 +25,4 @@ class Photo(models.Model):
 class PhotoForm(ModelForm):
     class Meta:
         model = Photo
+        fields = '__all__'
diff --git a/tests/foreign_object/tests.py b/tests/foreign_object/tests.py
index 2ca13cb786..55dd6a0f47 100644
--- a/tests/foreign_object/tests.py
+++ b/tests/foreign_object/tests.py
@@ -322,6 +322,7 @@ class FormsTests(TestCase):
     class ArticleForm(forms.ModelForm):
         class Meta:
             model = Article
+            fields = '__all__'
 
     def test_foreign_object_form(self):
         # A very crude test checking that the non-concrete fields do not get form fields.
diff --git a/tests/forms_tests/tests/test_regressions.py b/tests/forms_tests/tests/test_regressions.py
index be9dc8c593..74509a0f1a 100644
--- a/tests/forms_tests/tests/test_regressions.py
+++ b/tests/forms_tests/tests/test_regressions.py
@@ -139,6 +139,7 @@ class FormsRegressionsTestCase(TestCase):
         class CheeseForm(ModelForm):
             class Meta:
                 model = Cheese
+                fields = '__all__'
 
         form = CheeseForm({
             'name': 'Brie',
diff --git a/tests/forms_tests/tests/tests.py b/tests/forms_tests/tests/tests.py
index 80e2cadcc3..deda4822b8 100644
--- a/tests/forms_tests/tests/tests.py
+++ b/tests/forms_tests/tests/tests.py
@@ -17,11 +17,13 @@ from ..models import (ChoiceOptionModel, ChoiceFieldModel, FileModel, Group,
 class ChoiceFieldForm(ModelForm):
     class Meta:
         model = ChoiceFieldModel
+        fields = '__all__'
 
 
 class OptionalMultiChoiceModelForm(ModelForm):
     class Meta:
         model = OptionalMultiChoiceModel
+        fields = '__all__'
 
 
 class FileForm(Form):
@@ -139,6 +141,7 @@ class FormsModelTestCase(TestCase):
         class BoundaryForm(ModelForm):
             class Meta:
                 model = BoundaryModel
+                fields = '__all__'
 
         f = BoundaryForm({'positive_integer': 100})
         self.assertTrue(f.is_valid())
@@ -154,6 +157,7 @@ class FormsModelTestCase(TestCase):
         class DefaultsForm(ModelForm):
             class Meta:
                 model = Defaults
+                fields = '__all__'
 
         self.assertEqual(DefaultsForm().fields['name'].initial, 'class default value')
         self.assertEqual(DefaultsForm().fields['def_date'].initial, datetime.date(1980, 1, 1))
diff --git a/tests/generic_relations/tests.py b/tests/generic_relations/tests.py
index 27b25185ea..dd9dc506ca 100644
--- a/tests/generic_relations/tests.py
+++ b/tests/generic_relations/tests.py
@@ -247,6 +247,7 @@ class CustomWidget(forms.TextInput):
 class TaggedItemForm(forms.ModelForm):
     class Meta:
         model = TaggedItem
+        fields = '__all__'
         widgets = {'tag': CustomWidget}
 
 class GenericInlineFormsetTest(TestCase):
diff --git a/tests/generic_views/test_edit.py b/tests/generic_views/test_edit.py
index c54d632363..54eab7ffa4 100644
--- a/tests/generic_views/test_edit.py
+++ b/tests/generic_views/test_edit.py
@@ -1,12 +1,14 @@
 from __future__ import absolute_import
 
+import warnings
+
 from django.core.exceptions import ImproperlyConfigured
 from django.core.urlresolvers import reverse
 from django import forms
 from django.test import TestCase
 from django.utils.unittest import expectedFailure
 from django.views.generic.base import View
-from django.views.generic.edit import FormMixin
+from django.views.generic.edit import FormMixin, CreateView, UpdateView
 
 from . import views
 from .models import Artist, Author
@@ -34,6 +36,7 @@ class ModelFormMixinTests(TestCase):
         form_class = views.AuthorGetQuerySetFormView().get_form_class()
         self.assertEqual(form_class._meta.model, Author)
 
+
 class CreateViewTests(TestCase):
     urls = 'generic_views.urls'
 
@@ -112,6 +115,45 @@ class CreateViewTests(TestCase):
         self.assertEqual(res.status_code, 302)
         self.assertRedirects(res, 'http://testserver/accounts/login/?next=/edit/authors/create/restricted/')
 
+    def test_create_view_with_restricted_fields(self):
+
+        class MyCreateView(CreateView):
+            model = Author
+            fields = ['name']
+
+        self.assertEqual(list(MyCreateView().get_form_class().base_fields),
+                         ['name'])
+
+    def test_create_view_all_fields(self):
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always", PendingDeprecationWarning)
+
+            class MyCreateView(CreateView):
+                model = Author
+                fields = '__all__'
+
+            self.assertEqual(list(MyCreateView().get_form_class().base_fields),
+                             ['name', 'slug'])
+        self.assertEqual(len(w), 0)
+
+
+    def test_create_view_without_explicit_fields(self):
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always", PendingDeprecationWarning)
+
+            class MyCreateView(CreateView):
+                model = Author
+
+            # Until end of the deprecation cycle, should still create the form
+            # as before:
+            self.assertEqual(list(MyCreateView().get_form_class().base_fields),
+                             ['name', 'slug'])
+
+        # but with a warning:
+        self.assertEqual(w[0].category, PendingDeprecationWarning)
+
 
 class UpdateViewTests(TestCase):
     urls = 'generic_views.urls'
diff --git a/tests/generic_views/test_forms.py b/tests/generic_views/test_forms.py
index e036ad8afc..8c118e32a6 100644
--- a/tests/generic_views/test_forms.py
+++ b/tests/generic_views/test_forms.py
@@ -11,6 +11,7 @@ class AuthorForm(forms.ModelForm):
 
     class Meta:
         model = Author
+        fields = ['name', 'slug']
 
 
 class ContactForm(forms.Form):
diff --git a/tests/generic_views/views.py b/tests/generic_views/views.py
index 69bfcb32dd..aa8777e8c6 100644
--- a/tests/generic_views/views.py
+++ b/tests/generic_views/views.py
@@ -85,15 +85,18 @@ class ContactView(generic.FormView):
 
 class ArtistCreate(generic.CreateView):
     model = Artist
+    fields = '__all__'
 
 
 class NaiveAuthorCreate(generic.CreateView):
     queryset = Author.objects.all()
+    fields = '__all__'
 
 
 class AuthorCreate(generic.CreateView):
     model = Author
     success_url = '/list/authors/'
+    fields = '__all__'
 
 
 class SpecializedAuthorCreate(generic.CreateView):
@@ -112,19 +115,23 @@ class AuthorCreateRestricted(AuthorCreate):
 
 class ArtistUpdate(generic.UpdateView):
     model = Artist
+    fields = '__all__'
 
 
 class NaiveAuthorUpdate(generic.UpdateView):
     queryset = Author.objects.all()
+    fields = '__all__'
 
 
 class AuthorUpdate(generic.UpdateView):
     model = Author
     success_url = '/list/authors/'
+    fields = '__all__'
 
 
 class OneAuthorUpdate(generic.UpdateView):
     success_url = '/list/authors/'
+    fields = '__all__'
 
     def get_object(self):
         return Author.objects.get(pk=1)
@@ -184,6 +191,8 @@ class BookDetail(BookConfig, generic.DateDetailView):
     pass
 
 class AuthorGetQuerySetFormView(generic.edit.ModelFormMixin):
+    fields = '__all__'
+
     def get_queryset(self):
         return Author.objects.all()
 
diff --git a/tests/i18n/forms.py b/tests/i18n/forms.py
index abb99f443a..6e4def9c5e 100644
--- a/tests/i18n/forms.py
+++ b/tests/i18n/forms.py
@@ -24,3 +24,4 @@ class CompanyForm(forms.ModelForm):
 
     class Meta:
         model = Company
+        fields = '__all__'
diff --git a/tests/inline_formsets/tests.py b/tests/inline_formsets/tests.py
index df682d34ef..ad8a666cb5 100644
--- a/tests/inline_formsets/tests.py
+++ b/tests/inline_formsets/tests.py
@@ -10,7 +10,7 @@ from .models import Poet, Poem, School, Parent, Child
 class DeletionTests(TestCase):
 
     def test_deletion(self):
-        PoemFormSet = inlineformset_factory(Poet, Poem, can_delete=True)
+        PoemFormSet = inlineformset_factory(Poet, Poem, can_delete=True, fields="__all__")
         poet = Poet.objects.create(name='test')
         poem = poet.poem_set.create(name='test poem')
         data = {
@@ -32,7 +32,7 @@ class DeletionTests(TestCase):
         Make sure that an add form that is filled out, but marked for deletion
         doesn't cause validation errors.
         """
-        PoemFormSet = inlineformset_factory(Poet, Poem, can_delete=True)
+        PoemFormSet = inlineformset_factory(Poet, Poem, can_delete=True, fields="__all__")
         poet = Poet.objects.create(name='test')
         data = {
             'poem_set-TOTAL_FORMS': '1',
@@ -60,7 +60,7 @@ class DeletionTests(TestCase):
         Make sure that a change form that is filled out, but marked for deletion
         doesn't cause validation errors.
         """
-        PoemFormSet = inlineformset_factory(Poet, Poem, can_delete=True)
+        PoemFormSet = inlineformset_factory(Poet, Poem, can_delete=True, fields="__all__")
         poet = Poet.objects.create(name='test')
         poem = poet.poem_set.create(name='test poem')
         data = {
@@ -115,8 +115,8 @@ class InlineFormsetFactoryTest(TestCase):
         """
         These should both work without a problem.
         """
-        inlineformset_factory(Parent, Child, fk_name='mother')
-        inlineformset_factory(Parent, Child, fk_name='father')
+        inlineformset_factory(Parent, Child, fk_name='mother', fields="__all__")
+        inlineformset_factory(Parent, Child, fk_name='father', fields="__all__")
 
     def test_exception_on_unspecified_foreign_key(self):
         """
diff --git a/tests/model_forms/tests.py b/tests/model_forms/tests.py
index 96c3ecbdce..c5db011404 100644
--- a/tests/model_forms/tests.py
+++ b/tests/model_forms/tests.py
@@ -3,6 +3,7 @@ from __future__ import absolute_import, unicode_literals
 import datetime
 import os
 from decimal import Decimal
+import warnings
 
 from django import forms
 from django.core.exceptions import FieldError
@@ -30,19 +31,25 @@ if test_images:
     class ImageFileForm(forms.ModelForm):
         class Meta:
             model = ImageFile
+            fields = '__all__'
+
 
     class OptionalImageFileForm(forms.ModelForm):
         class Meta:
             model = OptionalImageFile
+            fields = '__all__'
+
 
 class ProductForm(forms.ModelForm):
     class Meta:
         model = Product
+        fields = '__all__'
 
 
 class PriceForm(forms.ModelForm):
     class Meta:
         model = Price
+        fields = '__all__'
 
 
 class BookForm(forms.ModelForm):
@@ -66,11 +73,13 @@ class ExplicitPKForm(forms.ModelForm):
 class PostForm(forms.ModelForm):
     class Meta:
         model = Post
+        fields = '__all__'
 
 
 class DerivedPostForm(forms.ModelForm):
     class Meta:
         model = DerivedPost
+        fields = '__all__'
 
 
 class CustomAuthorForm(forms.ModelForm):
@@ -78,61 +87,79 @@ class CustomAuthorForm(forms.ModelForm):
 
    class Meta:
        model = Author
+       fields = '__all__'
 
 
 class FlexDatePostForm(forms.ModelForm):
     class Meta:
         model = FlexibleDatePost
+        fields = '__all__'
 
 
 class BaseCategoryForm(forms.ModelForm):
     class Meta:
         model = Category
+        fields = '__all__'
 
 
 class ArticleForm(forms.ModelForm):
     class Meta:
         model = Article
+        fields = '__all__'
 
 
 class ArticleForm(forms.ModelForm):
     class Meta:
         model = Article
+        fields = '__all__'
+
 
 class PartialArticleForm(forms.ModelForm):
     class Meta:
         model = Article
         fields = ('headline','pub_date')
 
+
 class RoykoForm(forms.ModelForm):
     class Meta:
         model = Author
+        fields = '__all__'
+
 
 class TestArticleForm(forms.ModelForm):
     class Meta:
         model = Article
+        fields = '__all__'
+
 
 class PartialArticleFormWithSlug(forms.ModelForm):
     class Meta:
         model = Article
-        fields=('headline', 'slug', 'pub_date')
+        fields = ('headline', 'slug', 'pub_date')
+
 
 class ArticleStatusForm(forms.ModelForm):
     class Meta:
         model = ArticleStatus
+        fields = '__all__'
+
 
 class InventoryForm(forms.ModelForm):
     class Meta:
         model = Inventory
+        fields = '__all__'
+
 
 class SelectInventoryForm(forms.Form):
     items = forms.ModelMultipleChoiceField(Inventory.objects.all(), to_field_name='barcode')
 
+
 class CustomFieldForExclusionForm(forms.ModelForm):
     class Meta:
         model = CustomFieldForExclusionModel
         fields = ['name', 'markup']
 
+
 class ShortCategory(forms.ModelForm):
     name = forms.CharField(max_length=5)
     slug = forms.CharField(max_length=5)
@@ -140,30 +167,44 @@ class ShortCategory(forms.ModelForm):
 
     class Meta:
         model = Category
+        fields = '__all__'
+
 
 class ImprovedArticleForm(forms.ModelForm):
     class Meta:
         model = ImprovedArticle
+        fields = '__all__'
+
 
 class ImprovedArticleWithParentLinkForm(forms.ModelForm):
     class Meta:
         model = ImprovedArticleWithParentLink
+        fields = '__all__'
+
 
 class BetterAuthorForm(forms.ModelForm):
     class Meta:
         model = BetterAuthor
+        fields = '__all__'
+
 
 class AuthorProfileForm(forms.ModelForm):
     class Meta:
         model = AuthorProfile
+        fields = '__all__'
+
 
 class TextFileForm(forms.ModelForm):
     class Meta:
         model = TextFile
+        fields = '__all__'
+
 
 class BigIntForm(forms.ModelForm):
     class Meta:
         model = BigInt
+        fields = '__all__'
+
 
 class ModelFormWithMedia(forms.ModelForm):
     class Media:
@@ -173,19 +214,25 @@ class ModelFormWithMedia(forms.ModelForm):
         }
     class Meta:
         model = TextFile
+        fields = '__all__'
+
 
 class CommaSeparatedIntegerForm(forms.ModelForm):
-   class Meta:
-       model = CommaSeparatedInteger
+    class Meta:
+        model = CommaSeparatedInteger
+        fields = '__all__'
+
 
 class PriceFormWithoutQuantity(forms.ModelForm):
     class Meta:
         model = Price
         exclude = ('quantity',)
 
+
 class ColourfulItemForm(forms.ModelForm):
     class Meta:
         model = ColourfulItem
+        fields = '__all__'
 
 
 class ModelFormBaseTest(TestCase):
@@ -193,6 +240,25 @@ class ModelFormBaseTest(TestCase):
         self.assertEqual(list(BaseCategoryForm.base_fields),
                          ['name', 'slug', 'url'])
 
+    def test_missing_fields_attribute(self):
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always", PendingDeprecationWarning)
+
+            class MissingFieldsForm(forms.ModelForm):
+                class Meta:
+                    model = Category
+
+        # There is some internal state in warnings module which means that
+        # if a warning has been seen already, the catch_warnings won't
+        # have recorded it. The following line therefore will not work reliably:
+
+        # self.assertEqual(w[0].category, PendingDeprecationWarning)
+
+        # Until end of the deprecation cycle, should still create the
+        # form as before:
+        self.assertEqual(list(MissingFieldsForm.base_fields),
+                         ['name', 'slug', 'url'])
+
     def test_extra_fields(self):
         class ExtraFields(BaseCategoryForm):
             some_extra_field = forms.BooleanField()
@@ -206,6 +272,33 @@ class ModelFormBaseTest(TestCase):
 
             class Meta:
                 model = Category
+                fields = '__all__'
+
+        self.assertTrue(isinstance(ReplaceField.base_fields['url'],
+                                     forms.fields.BooleanField))
+
+    def test_replace_field_variant_2(self):
+        # Should have the same result as before,
+        # but 'fields' attribute specified differently
+        class ReplaceField(forms.ModelForm):
+            url = forms.BooleanField()
+
+            class Meta:
+                model = Category
+                fields = ['url']
+
+        self.assertTrue(isinstance(ReplaceField.base_fields['url'],
+                                     forms.fields.BooleanField))
+
+    def test_replace_field_variant_3(self):
+        # Should have the same result as before,
+        # but 'fields' attribute specified differently
+        class ReplaceField(forms.ModelForm):
+            url = forms.BooleanField()
+
+            class Meta:
+                model = Category
+                fields = [] # url will still appear, since it is explicit above
 
         self.assertTrue(isinstance(ReplaceField.base_fields['url'],
                                      forms.fields.BooleanField))
@@ -216,19 +309,11 @@ class ModelFormBaseTest(TestCase):
 
             class Meta:
                 model = Author
+                fields = '__all__'
 
         wf = AuthorForm({'name': 'Richard Lockridge'})
         self.assertTrue(wf.is_valid())
 
-    def test_limit_fields(self):
-        class LimitFields(forms.ModelForm):
-            class Meta:
-                model = Category
-                fields = ['url']
-
-        self.assertEqual(list(LimitFields.base_fields),
-                         ['url'])
-
     def test_limit_nonexistent_field(self):
         expected_msg = 'Unknown field(s) (nonexistent) specified for Category'
         with self.assertRaisesMessage(FieldError, expected_msg):
@@ -294,6 +379,7 @@ class ModelFormBaseTest(TestCase):
             """
             class Meta:
                 model = Article
+                fields = '__all__'
             # MixModelForm is now an Article-related thing, because MixModelForm.Meta
             # overrides BaseCategoryForm.Meta.
 
@@ -348,6 +434,7 @@ class ModelFormBaseTest(TestCase):
 
              class Meta:
                  model = Category
+                 fields = '__all__'
 
         class SubclassMeta(SomeCategoryForm):
             """ We can also subclass the Meta inner class to change the fields
diff --git a/tests/model_forms_regress/tests.py b/tests/model_forms_regress/tests.py
index 90c907f2a6..3f15c35938 100644
--- a/tests/model_forms_regress/tests.py
+++ b/tests/model_forms_regress/tests.py
@@ -1,6 +1,7 @@
 from __future__ import absolute_import, unicode_literals
 
 from datetime import date
+import warnings
 
 from django import forms
 from django.core.exceptions import FieldError, ValidationError
@@ -43,9 +44,12 @@ class ModelMultipleChoiceFieldTests(TestCase):
         f.clean([p.pk for p in Person.objects.all()[8:9]])
         self.assertTrue(self._validator_run)
 
+
 class TripleForm(forms.ModelForm):
     class Meta:
         model = Triple
+        fields = '__all__'
+
 
 class UniqueTogetherTests(TestCase):
     def test_multiple_field_unique_together(self):
@@ -63,15 +67,18 @@ class UniqueTogetherTests(TestCase):
         form = TripleForm({'left': '1', 'middle': '3', 'right': '1'})
         self.assertTrue(form.is_valid())
 
+
 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
 
+
 class OverrideCleanTests(TestCase):
     def test_override_clean(self):
         """
@@ -84,6 +91,7 @@ class OverrideCleanTests(TestCase):
         # by form.full_clean().
         self.assertEqual(form.instance.left, 1)
 
+
 # Regression test for #12960.
 # Make sure the cleaned_data returned from ModelForm.clean() is applied to the
 # model instance.
@@ -95,6 +103,8 @@ class PublicationForm(forms.ModelForm):
 
     class Meta:
         model = Publication
+        fields = '__all__'
+
 
 class ModelFormCleanTest(TestCase):
     def test_model_form_clean_applies_to_model(self):
@@ -103,9 +113,12 @@ class ModelFormCleanTest(TestCase):
         publication = form.save()
         self.assertEqual(publication.title, 'TEST')
 
+
 class FPForm(forms.ModelForm):
     class Meta:
         model = FilePathModel
+        fields = '__all__'
+
 
 class FilePathFieldTests(TestCase):
     def test_file_path_field_blank(self):
@@ -133,7 +146,8 @@ class ManyToManyCallableInitialTests(TestCase):
         book3 = Publication.objects.create(title="Third Book", date_published=date(2009,1,1))
 
         # Create a ModelForm, instantiate it, and check that the output is as expected
-        ModelForm = modelform_factory(Article, formfield_callback=formfield_for_dbfield)
+        ModelForm = modelform_factory(Article, fields="__all__",
+                                      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="100" /></li>
 <li><label for="id_publications">Publications:</label> <select multiple="multiple" name="publications" id="id_publications">
@@ -143,9 +157,12 @@ class ManyToManyCallableInitialTests(TestCase):
 </select> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></li>"""
             % (book1.pk, book2.pk, book3.pk))
 
+
 class CFFForm(forms.ModelForm):
     class Meta:
         model = CustomFF
+        fields = '__all__'
+
 
 class CustomFieldSaveTests(TestCase):
     def test_save(self):
@@ -168,9 +185,12 @@ class ModelChoiceIteratorTests(TestCase):
         f = Form()
         self.assertEqual(len(f.fields["publications"].choices), 1)
 
+
 class RealPersonForm(forms.ModelForm):
     class Meta:
         model = RealPerson
+        fields = '__all__'
+
 
 class CustomModelFormSaveMethod(TestCase):
     def test_string_message(self):
@@ -230,9 +250,12 @@ class TestTicket11183(TestCase):
         self.assertTrue(field1 is not ModelChoiceForm.base_fields['person'])
         self.assertTrue(field1.widget.choices.field is field1)
 
+
 class HomepageForm(forms.ModelForm):
     class Meta:
         model = Homepage
+        fields = '__all__'
+
 
 class URLFieldTests(TestCase):
     def test_url_on_modelform(self):
@@ -274,6 +297,7 @@ class FormFieldCallbackTests(TestCase):
             class Meta:
                 model = Person
                 widgets = {'name': widget}
+                fields = "__all__"
 
         Form = modelform_factory(Person, form=BaseForm)
         self.assertTrue(Form.base_fields['name'].widget is widget)
@@ -285,11 +309,11 @@ class FormFieldCallbackTests(TestCase):
         widget = forms.Textarea()
 
         # Without a widget should not set the widget to textarea
-        Form = modelform_factory(Person)
+        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, widgets={'name':widget})
+        Form = modelform_factory(Person, fields="__all__", widgets={'name':widget})
         self.assertEqual(Form.base_fields['name'].widget.__class__, forms.Textarea)
 
     def test_custom_callback(self):
@@ -307,6 +331,7 @@ class FormFieldCallbackTests(TestCase):
             class Meta:
                 model = Person
                 widgets = {'name': widget}
+                fields = "__all__"
 
         _ = modelform_factory(Person, form=BaseForm,
                               formfield_callback=callback)
@@ -317,7 +342,7 @@ class FormFieldCallbackTests(TestCase):
 
     def test_bad_callback(self):
         # A bad callback provided by user still gives an error
-        self.assertRaises(TypeError, modelform_factory, Person,
+        self.assertRaises(TypeError, modelform_factory, Person, fields="__all__",
                           formfield_callback='not a function or callable')
 
 
@@ -362,6 +387,8 @@ class InvalidFieldAndFactory(TestCase):
 class DocumentForm(forms.ModelForm):
     class Meta:
         model = Document
+        fields = '__all__'
+
 
 class FileFieldTests(unittest.TestCase):
     def test_clean_false(self):
@@ -425,6 +452,7 @@ class FileFieldTests(unittest.TestCase):
         self.assertTrue('something.txt' in rendered)
         self.assertTrue('myfile-clear' in rendered)
 
+
 class EditionForm(forms.ModelForm):
     author = forms.ModelChoiceField(queryset=Person.objects.all())
     publication = forms.ModelChoiceField(queryset=Publication.objects.all())
@@ -433,6 +461,8 @@ class EditionForm(forms.ModelForm):
 
     class Meta:
         model = Edition
+        fields = '__all__'
+
 
 class UniqueErrorsTests(TestCase):
     def setUp(self):
@@ -473,7 +503,7 @@ class EmptyFieldsTestCase(TestCase):
 
     def test_empty_fields_to_construct_instance(self):
         "No fields should be set on a model instance if construct_instance receives fields=()"
-        form = modelform_factory(Person)({'name': 'John Doe'})
+        form = modelform_factory(Person, fields="__all__")({'name': 'John Doe'})
         self.assertTrue(form.is_valid())
         instance = construct_instance(form, Person(), fields=())
         self.assertEqual(instance.name, '')
@@ -485,10 +515,25 @@ class CustomMetaclass(ModelFormMetaclass):
         new.base_fields = {}
         return new
 
+
 class CustomMetaclassForm(six.with_metaclass(CustomMetaclass, forms.ModelForm)):
     pass
 
+
 class CustomMetaclassTestCase(TestCase):
     def test_modelform_factory_metaclass(self):
-        new_cls = modelform_factory(Person, form=CustomMetaclassForm)
+        new_cls = modelform_factory(Person, fields="__all__", form=CustomMetaclassForm)
         self.assertEqual(new_cls.base_fields, {})
+
+
+class TestTicket19733(TestCase):
+    def test_modelform_factory_without_fields(self):
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always", PendingDeprecationWarning)
+            # This should become an error once deprecation cycle is complete.
+            form = modelform_factory(Person)
+        self.assertEqual(w[0].category, PendingDeprecationWarning)
+
+    def test_modelform_factory_with_all_fields(self):
+        form = modelform_factory(Person, fields="__all__")
+        self.assertEqual(form.base_fields.keys(), ["name"])
diff --git a/tests/model_formsets/tests.py b/tests/model_formsets/tests.py
index 8d0c017a61..8cfdf53995 100644
--- a/tests/model_formsets/tests.py
+++ b/tests/model_formsets/tests.py
@@ -21,7 +21,7 @@ from .models import (Author, BetterAuthor, Book, BookWithCustomPK,
 
 class DeletionTests(TestCase):
     def test_deletion(self):
-        PoetFormSet = modelformset_factory(Poet, can_delete=True)
+        PoetFormSet = modelformset_factory(Poet, fields="__all__", can_delete=True)
         poet = Poet.objects.create(name='test')
         data = {
             'form-TOTAL_FORMS': '1',
@@ -41,7 +41,7 @@ class DeletionTests(TestCase):
         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)
+        PoetFormSet = modelformset_factory(Poet, fields="__all__", can_delete=True)
         poet = Poet.objects.create(name='test')
         # One existing untouched and two new unvalid forms
         data = {
@@ -75,7 +75,7 @@ class DeletionTests(TestCase):
         Make sure that a change form that is filled out, but marked for deletion
         doesn't cause validation errors.
         """
-        PoetFormSet = modelformset_factory(Poet, can_delete=True)
+        PoetFormSet = modelformset_factory(Poet, fields="__all__", can_delete=True)
         poet = Poet.objects.create(name='test')
         data = {
             'form-TOTAL_FORMS': '1',
@@ -100,7 +100,7 @@ class DeletionTests(TestCase):
 class ModelFormsetTest(TestCase):
     def test_simple_save(self):
         qs = Author.objects.all()
-        AuthorFormSet = modelformset_factory(Author, extra=3)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", extra=3)
 
         formset = AuthorFormSet(queryset=qs)
         self.assertEqual(len(formset.forms), 3)
@@ -138,7 +138,7 @@ class ModelFormsetTest(TestCase):
         # we'll use it to display them in alphabetical order by name.
 
         qs = Author.objects.order_by('name')
-        AuthorFormSet = modelformset_factory(Author, extra=1, can_delete=False)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", extra=1, can_delete=False)
 
         formset = AuthorFormSet(queryset=qs)
         self.assertEqual(len(formset.forms), 3)
@@ -176,7 +176,7 @@ class ModelFormsetTest(TestCase):
         # marked for deletion, make sure we don't save that form.
 
         qs = Author.objects.order_by('name')
-        AuthorFormSet = modelformset_factory(Author, extra=1, can_delete=True)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", extra=1, can_delete=True)
 
         formset = AuthorFormSet(queryset=qs)
         self.assertEqual(len(formset.forms), 4)
@@ -256,7 +256,7 @@ class ModelFormsetTest(TestCase):
 
         author4 = Author.objects.create(name='John Steinbeck')
 
-        AuthorMeetingFormSet = modelformset_factory(AuthorMeeting, extra=1, can_delete=True)
+        AuthorMeetingFormSet = modelformset_factory(AuthorMeeting, fields="__all__", extra=1, can_delete=True)
         data = {
             'form-TOTAL_FORMS': '2', # the number of forms rendered
             'form-INITIAL_FORMS': '1', # the number of forms with initial data
@@ -294,22 +294,22 @@ class ModelFormsetTest(TestCase):
 
         qs = Author.objects.order_by('name')
 
-        AuthorFormSet = modelformset_factory(Author, max_num=None, extra=3)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", max_num=None, extra=3)
         formset = AuthorFormSet(queryset=qs)
         self.assertEqual(len(formset.forms), 6)
         self.assertEqual(len(formset.extra_forms), 3)
 
-        AuthorFormSet = modelformset_factory(Author, max_num=4, extra=3)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", max_num=4, extra=3)
         formset = AuthorFormSet(queryset=qs)
         self.assertEqual(len(formset.forms), 4)
         self.assertEqual(len(formset.extra_forms), 1)
 
-        AuthorFormSet = modelformset_factory(Author, max_num=0, extra=3)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", max_num=0, extra=3)
         formset = AuthorFormSet(queryset=qs)
         self.assertEqual(len(formset.forms), 3)
         self.assertEqual(len(formset.extra_forms), 0)
 
-        AuthorFormSet = modelformset_factory(Author, max_num=None)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", max_num=None)
         formset = AuthorFormSet(queryset=qs)
         self.assertQuerysetEqual(formset.get_queryset(), [
             '<Author: Charles Baudelaire>',
@@ -317,7 +317,7 @@ class ModelFormsetTest(TestCase):
             '<Author: Walt Whitman>',
         ])
 
-        AuthorFormSet = modelformset_factory(Author, max_num=0)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", max_num=0)
         formset = AuthorFormSet(queryset=qs)
         self.assertQuerysetEqual(formset.get_queryset(), [
             '<Author: Charles Baudelaire>',
@@ -325,7 +325,7 @@ class ModelFormsetTest(TestCase):
             '<Author: Walt Whitman>',
         ])
 
-        AuthorFormSet = modelformset_factory(Author, max_num=4)
+        AuthorFormSet = modelformset_factory(Author, fields="__all__", max_num=4)
         formset = AuthorFormSet(queryset=qs)
         self.assertQuerysetEqual(formset.get_queryset(), [
             '<Author: Charles Baudelaire>',
@@ -343,7 +343,7 @@ class ModelFormsetTest(TestCase):
                     author.save()
                 return author
 
-        PoetFormSet = modelformset_factory(Poet, form=PoetForm)
+        PoetFormSet = modelformset_factory(Poet, fields="__all__", form=PoetForm)
 
         data = {
             'form-TOTAL_FORMS': '3', # the number of forms rendered
@@ -387,7 +387,7 @@ class ModelFormsetTest(TestCase):
         self.assertFalse("subtitle" in formset.forms[0].fields)
 
     def test_model_inheritance(self):
-        BetterAuthorFormSet = modelformset_factory(BetterAuthor)
+        BetterAuthorFormSet = modelformset_factory(BetterAuthor, fields="__all__")
         formset = BetterAuthorFormSet()
         self.assertEqual(len(formset.forms), 1)
         self.assertHTMLEqual(formset.forms[0].as_p(),
@@ -440,7 +440,7 @@ class ModelFormsetTest(TestCase):
         # We can also create a formset that is tied to a parent model. This is
         # how the admin system's edit inline functionality works.
 
-        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=3)
+        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=3, fields="__all__")
         author = Author.objects.create(name='Charles Baudelaire')
 
         formset = AuthorBooksFormSet(instance=author)
@@ -474,7 +474,7 @@ class ModelFormsetTest(TestCase):
         # another one. This time though, an edit form will be available for
         # every existing book.
 
-        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2)
+        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2, fields="__all__")
         author = Author.objects.get(name='Charles Baudelaire')
 
         formset = AuthorBooksFormSet(instance=author)
@@ -514,7 +514,7 @@ class ModelFormsetTest(TestCase):
     def test_inline_formsets_save_as_new(self):
         # The save_as_new parameter lets you re-associate the data to a new
         # instance.  This is used in the admin for save_as functionality.
-        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2)
+        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2, fields="__all__")
         author = Author.objects.create(name='Charles Baudelaire')
 
         data = {
@@ -553,7 +553,7 @@ class ModelFormsetTest(TestCase):
         # primary key that is not the fk to the parent object.
         self.maxDiff = 1024
 
-        AuthorBooksFormSet2 = inlineformset_factory(Author, BookWithCustomPK, can_delete=False, extra=1)
+        AuthorBooksFormSet2 = inlineformset_factory(Author, BookWithCustomPK, can_delete=False, extra=1, fields="__all__")
         author = Author.objects.create(pk=1, name='Charles Baudelaire')
 
         formset = AuthorBooksFormSet2(instance=author)
@@ -585,7 +585,7 @@ class ModelFormsetTest(TestCase):
         # Test inline formsets where the inline-edited object uses multi-table
         # inheritance, thus has a non AutoField yet auto-created primary key.
 
-        AuthorBooksFormSet3 = inlineformset_factory(Author, AlternateBook, can_delete=False, extra=1)
+        AuthorBooksFormSet3 = inlineformset_factory(Author, AlternateBook, can_delete=False, extra=1, fields="__all__")
         author = Author.objects.create(pk=1, name='Charles Baudelaire')
 
         formset = AuthorBooksFormSet3(instance=author)
@@ -616,7 +616,7 @@ class ModelFormsetTest(TestCase):
         # Test inline formsets where the inline-edited object has a
         # unique_together constraint with a nullable member
 
-        AuthorBooksFormSet4 = inlineformset_factory(Author, BookWithOptionalAltEditor, can_delete=False, extra=2)
+        AuthorBooksFormSet4 = inlineformset_factory(Author, BookWithOptionalAltEditor, can_delete=False, extra=2, fields="__all__")
         author = Author.objects.create(pk=1, name='Charles Baudelaire')
 
         data = {
@@ -640,7 +640,7 @@ class ModelFormsetTest(TestCase):
         self.assertEqual(book2.title, 'Les Fleurs du Mal')
 
     def test_inline_formsets_with_custom_save_method(self):
-        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2)
+        AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2, fields="__all__")
         author = Author.objects.create(pk=1, name='Charles Baudelaire')
         book1 = Book.objects.create(pk=1, author=author, title='Les Paradis Artificiels')
         book2 = Book.objects.create(pk=2, author=author, title='Les Fleurs du Mal')
@@ -655,7 +655,7 @@ class ModelFormsetTest(TestCase):
                     poem.save()
                 return poem
 
-        PoemFormSet = inlineformset_factory(Poet, Poem, form=PoemForm)
+        PoemFormSet = inlineformset_factory(Poet, Poem, form=PoemForm, fields="__all__")
 
         data = {
             'poem_set-TOTAL_FORMS': '3', # the number of forms rendered
@@ -732,7 +732,7 @@ class ModelFormsetTest(TestCase):
     def test_custom_pk(self):
         # We need to ensure that it is displayed
 
-        CustomPrimaryKeyFormSet = modelformset_factory(CustomPrimaryKey)
+        CustomPrimaryKeyFormSet = modelformset_factory(CustomPrimaryKey, fields="__all__")
         formset = CustomPrimaryKeyFormSet()
         self.assertEqual(len(formset.forms), 1)
         self.assertHTMLEqual(formset.forms[0].as_p(),
@@ -743,7 +743,7 @@ class ModelFormsetTest(TestCase):
 
         place = Place.objects.create(pk=1, name='Giordanos', city='Chicago')
 
-        FormSet = inlineformset_factory(Place, Owner, extra=2, can_delete=False)
+        FormSet = inlineformset_factory(Place, Owner, extra=2, can_delete=False, fields="__all__")
         formset = FormSet(instance=place)
         self.assertEqual(len(formset.forms), 2)
         self.assertHTMLEqual(formset.forms[0].as_p(),
@@ -799,7 +799,7 @@ class ModelFormsetTest(TestCase):
 
         # Ensure a custom primary key that is a ForeignKey or OneToOneField get rendered for the user to choose.
 
-        FormSet = modelformset_factory(OwnerProfile)
+        FormSet = modelformset_factory(OwnerProfile, fields="__all__")
         formset = FormSet()
         self.assertHTMLEqual(formset.forms[0].as_p(),
             '<p><label for="id_form-0-owner">Owner:</label> <select name="form-0-owner" id="id_form-0-owner">\n'
@@ -811,7 +811,7 @@ class ModelFormsetTest(TestCase):
             % (owner1.auto_id, owner2.auto_id))
 
         owner1 = Owner.objects.get(name='Joe Perry')
-        FormSet = inlineformset_factory(Owner, OwnerProfile, max_num=1, can_delete=False)
+        FormSet = inlineformset_factory(Owner, OwnerProfile, max_num=1, can_delete=False, fields="__all__")
         self.assertEqual(FormSet.max_num, 1)
 
         formset = FormSet(instance=owner1)
@@ -861,7 +861,7 @@ class ModelFormsetTest(TestCase):
 
         place = Place.objects.create(pk=1, name='Giordanos', city='Chicago')
 
-        FormSet = inlineformset_factory(Place, Location, can_delete=False)
+        FormSet = inlineformset_factory(Place, Location, can_delete=False, fields="__all__")
         self.assertEqual(FormSet.max_num, 1)
 
         formset = FormSet(instance=place)
@@ -875,7 +875,7 @@ class ModelFormsetTest(TestCase):
         self.assertEqual(type(_get_foreign_key(MexicanRestaurant, Owner)), models.ForeignKey)
 
     def test_unique_validation(self):
-        FormSet = modelformset_factory(Product, extra=1)
+        FormSet = modelformset_factory(Product, fields="__all__", extra=1)
         data = {
             'form-TOTAL_FORMS': '1',
             'form-INITIAL_FORMS': '0',
@@ -915,19 +915,19 @@ class ModelFormsetTest(TestCase):
             'form-1-quantity': '2',
         }
 
-        FormSet = modelformset_factory(Price, extra=1, max_num=1, validate_max=True)
+        FormSet = modelformset_factory(Price, fields="__all__", extra=1, max_num=1, validate_max=True)
         formset = FormSet(data)
         self.assertFalse(formset.is_valid())
         self.assertEqual(formset.non_form_errors(), ['Please submit 1 or fewer forms.'])
 
         # Now test the same thing without the validate_max flag to ensure
         # default behavior is unchanged
-        FormSet = modelformset_factory(Price, extra=1, max_num=1)
+        FormSet = modelformset_factory(Price, fields="__all__", extra=1, max_num=1)
         formset = FormSet(data)
         self.assertTrue(formset.is_valid())
 
     def test_unique_together_validation(self):
-        FormSet = modelformset_factory(Price, extra=1)
+        FormSet = modelformset_factory(Price, fields="__all__", extra=1)
         data = {
             'form-TOTAL_FORMS': '1',
             'form-INITIAL_FORMS': '0',
@@ -958,7 +958,7 @@ class ModelFormsetTest(TestCase):
         # Also see bug #8882.
 
         repository = Repository.objects.create(name='Test Repo')
-        FormSet = inlineformset_factory(Repository, Revision, extra=1)
+        FormSet = inlineformset_factory(Repository, Revision, extra=1, fields="__all__")
         data = {
             'revision_set-TOTAL_FORMS': '1',
             'revision_set-INITIAL_FORMS': '0',
@@ -1007,7 +1007,7 @@ class ModelFormsetTest(TestCase):
         # Use of callable defaults (see bug #7975).
 
         person = Person.objects.create(name='Ringo')
-        FormSet = inlineformset_factory(Person, Membership, can_delete=False, extra=1)
+        FormSet = inlineformset_factory(Person, Membership, can_delete=False, extra=1, fields="__all__")
         formset = FormSet(instance=person)
 
         # Django will render a hidden field for model fields that have a callable
@@ -1057,11 +1057,12 @@ class ModelFormsetTest(TestCase):
             date_joined = forms.SplitDateTimeField(initial=now)
             class Meta:
                 model = Membership
+                fields = "__all__"
             def __init__(self, **kwargs):
                 super(MembershipForm, self).__init__(**kwargs)
                 self.fields['date_joined'].widget = forms.SplitDateTimeWidget()
 
-        FormSet = inlineformset_factory(Person, Membership, form=MembershipForm, can_delete=False, extra=1)
+        FormSet = inlineformset_factory(Person, Membership, form=MembershipForm, can_delete=False, extra=1, fields="__all__")
         data = {
             'membership_set-TOTAL_FORMS': '1',
             'membership_set-INITIAL_FORMS': '0',
@@ -1081,7 +1082,7 @@ class ModelFormsetTest(TestCase):
         Player(name="Timmy").save()
         Player(name="Bobby", team=team).save()
 
-        PlayerInlineFormSet = inlineformset_factory(Team, Player)
+        PlayerInlineFormSet = inlineformset_factory(Team, Player, fields="__all__")
         formset = PlayerInlineFormSet()
         self.assertQuerysetEqual(formset.get_queryset(), [])
 
@@ -1101,7 +1102,7 @@ class ModelFormsetTest(TestCase):
     def test_model_formset_with_initial_model_instance(self):
         # has_changed should compare model instance and primary key
         # see #18898
-        FormSet = modelformset_factory(Poem)
+        FormSet = modelformset_factory(Poem, fields='__all__')
         john_milton = Poet(name="John Milton")
         john_milton.save()
         data = {
@@ -1117,7 +1118,7 @@ class ModelFormsetTest(TestCase):
     def test_model_formset_with_initial_queryset(self):
         # has_changed should work with queryset and list of pk's
         # see #18898
-        FormSet = modelformset_factory(AuthorMeeting)
+        FormSet = modelformset_factory(AuthorMeeting, fields='__all__')
         author = Author.objects.create(pk=1, name='Charles Baudelaire')
         data = {
             'form-TOTAL_FORMS': 1,
@@ -1131,7 +1132,7 @@ class ModelFormsetTest(TestCase):
         self.assertFalse(formset.extra_forms[0].has_changed())
 
     def test_prevent_duplicates_from_with_the_same_formset(self):
-        FormSet = modelformset_factory(Product, extra=2)
+        FormSet = modelformset_factory(Product, fields="__all__", extra=2)
         data = {
             'form-TOTAL_FORMS': 2,
             'form-INITIAL_FORMS': 0,
@@ -1144,7 +1145,7 @@ class ModelFormsetTest(TestCase):
         self.assertEqual(formset._non_form_errors,
             ['Please correct the duplicate data for slug.'])
 
-        FormSet = modelformset_factory(Price, extra=2)
+        FormSet = modelformset_factory(Price, fields="__all__", extra=2)
         data = {
             'form-TOTAL_FORMS': 2,
             'form-INITIAL_FORMS': 0,
@@ -1172,7 +1173,7 @@ class ModelFormsetTest(TestCase):
         formset = FormSet(data)
         self.assertTrue(formset.is_valid())
 
-        FormSet = inlineformset_factory(Author, Book, extra=0)
+        FormSet = inlineformset_factory(Author, Book, extra=0, fields="__all__")
         author = Author.objects.create(pk=1, name='Charles Baudelaire')
         book1 = Book.objects.create(pk=1, author=author, title='Les Paradis Artificiels')
         book2 = Book.objects.create(pk=2, author=author, title='Les Fleurs du Mal')
@@ -1199,7 +1200,7 @@ class ModelFormsetTest(TestCase):
         self.assertEqual(formset.errors,
             [{}, {'__all__': ['Please correct the duplicate values below.']}])
 
-        FormSet = modelformset_factory(Post, extra=2)
+        FormSet = modelformset_factory(Post, fields="__all__", extra=2)
         data = {
             'form-TOTAL_FORMS': '2',
             'form-INITIAL_FORMS': '0',
@@ -1265,7 +1266,7 @@ class TestModelFormsetWidgets(TestCase):
         widgets = {
             'name': forms.TextInput(attrs={'class': 'poet'})
         }
-        PoetFormSet = modelformset_factory(Poet, widgets=widgets)
+        PoetFormSet = modelformset_factory(Poet, fields="__all__", widgets=widgets)
         form = PoetFormSet.form()
         self.assertHTMLEqual(
             "%s" % form['name'],
@@ -1276,7 +1277,7 @@ class TestModelFormsetWidgets(TestCase):
         widgets = {
             'title': forms.TextInput(attrs={'class': 'book'})
         }
-        BookFormSet = inlineformset_factory(Author, Book, widgets=widgets)
+        BookFormSet = inlineformset_factory(Author, Book, widgets=widgets, fields="__all__")
         form = BookFormSet.form()
         self.assertHTMLEqual(
             "%s" % form['title'],
diff --git a/tests/model_formsets_regress/tests.py b/tests/model_formsets_regress/tests.py
index fd35eda854..38ebd9d24b 100644
--- a/tests/model_formsets_regress/tests.py
+++ b/tests/model_formsets_regress/tests.py
@@ -13,8 +13,8 @@ from .models import User, UserSite, Restaurant, Manager, Network, Host
 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)
+        Form = modelform_factory(User, fields="__all__")
+        FormSet = inlineformset_factory(User, UserSite, fields="__all__")
 
         # Instantiate the Form and FormSet to prove
         # you can create a form with no data
@@ -89,8 +89,8 @@ class InlineFormsetTests(TestCase):
 
     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)
+        Form = modelform_factory(Restaurant, fields="__all__")
+        FormSet = inlineformset_factory(Restaurant, Manager, fields="__all__")
 
         # Instantiate the Form and FormSet to prove
         # you can create a form with no data
@@ -156,8 +156,8 @@ class InlineFormsetTests(TestCase):
 
     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)
+        Form = modelform_factory(User, fields="__all__")
+        FormSet = inlineformset_factory(User, UserSite, fields="__all__")
 
         # Instantiate the Form and FormSet to prove
         # you can create a formset with an instance of None
@@ -182,7 +182,7 @@ class InlineFormsetTests(TestCase):
         efnet = Network.objects.create(name="EFNet")
         host1 = Host.objects.create(hostname="irc.he.net", network=efnet)
 
-        HostFormSet = inlineformset_factory(Network, Host)
+        HostFormSet = inlineformset_factory(Network, Host, fields="__all__")
 
         # Add a new host, modify previous host, and save-as-new
         data = {
@@ -208,7 +208,7 @@ class InlineFormsetTests(TestCase):
     def test_initial_data(self):
         user = User.objects.create(username="bibi", serial=1)
         UserSite.objects.create(user=user, data=7)
-        FormSet = inlineformset_factory(User, UserSite, extra=2)
+        FormSet = inlineformset_factory(User, UserSite, extra=2, fields="__all__")
 
         formset = FormSet(instance=user, initial=[{'data': 41}, {'data': 42}])
         self.assertEqual(formset.forms[0].initial['data'], 7)
@@ -221,7 +221,7 @@ class FormsetTests(TestCase):
         '''
         Test the type of Formset and Form error attributes
         '''
-        Formset = modelformset_factory(User)
+        Formset = modelformset_factory(User, fields="__all__")
         data = {
             'form-TOTAL_FORMS': '2',
             'form-INITIAL_FORMS': '0',
@@ -244,14 +244,14 @@ class FormsetTests(TestCase):
 
     def test_initial_data(self):
         User.objects.create(username="bibi", serial=1)
-        Formset = modelformset_factory(User, extra=2)
+        Formset = modelformset_factory(User, fields="__all__", extra=2)
         formset = Formset(initial=[{'username': 'apollo11'}, {'username': 'apollo12'}])
         self.assertEqual(formset.forms[0].initial['username'], "bibi")
         self.assertEqual(formset.extra_forms[0].initial['username'], "apollo11")
         self.assertTrue('value="apollo12"' in formset.extra_forms[1].as_p())
 
     def test_extraneous_query_is_not_run(self):
-        Formset = modelformset_factory(Network)
+        Formset = modelformset_factory(Network, fields="__all__")
         data = {'test-TOTAL_FORMS': '1',
                 'test-INITIAL_FORMS': '0',
                 'test-MAX_NUM_FORMS': '',
@@ -268,6 +268,7 @@ class CustomWidget(forms.widgets.TextInput):
 class UserSiteForm(forms.ModelForm):
     class Meta:
         model = UserSite
+        fields = "__all__"
         widgets = {
             'id': CustomWidget,
             'data': CustomWidget,
@@ -292,7 +293,7 @@ class FormfieldCallbackTests(TestCase):
     """
 
     def test_inlineformset_factory_default(self):
-        Formset = inlineformset_factory(User, UserSite, form=UserSiteForm)
+        Formset = inlineformset_factory(User, UserSite, form=UserSiteForm, fields="__all__")
         form = Formset().forms[0]
         self.assertTrue(isinstance(form['id'].field.widget, CustomWidget))
         self.assertTrue(isinstance(form['data'].field.widget, CustomWidget))
@@ -315,7 +316,7 @@ class FormfieldCallbackTests(TestCase):
     def test_inlineformset_custom_callback(self):
         callback = Callback()
         inlineformset_factory(User, UserSite, form=UserSiteForm,
-                              formfield_callback=callback)
+                              formfield_callback=callback, fields="__all__")
         self.assertCallbackCalled(callback)
 
     def test_modelformset_custom_callback(self):
@@ -353,6 +354,7 @@ class FormfieldShouldDeleteFormTests(TestCase):
         """ A model form with a 'should_delete' method """
         class Meta:
             model = User
+            fields = "__all__"
 
         def should_delete(self):
             """ delete form if odd PK """
diff --git a/tests/model_inheritance_regress/tests.py b/tests/model_inheritance_regress/tests.py
index c2c9337485..28635a29a9 100644
--- a/tests/model_inheritance_regress/tests.py
+++ b/tests/model_inheritance_regress/tests.py
@@ -418,6 +418,8 @@ class ModelInheritanceTest(TestCase):
         class ProfileForm(forms.ModelForm):
             class Meta:
                 model = Profile
+                fields = '__all__'
+
         User.objects.create(username="user_only")
         p = Profile.objects.create(username="user_with_profile")
         form = ProfileForm({'username': "user_with_profile", 'extra': "hello"},
diff --git a/tests/modeladmin/tests.py b/tests/modeladmin/tests.py
index bac8d30153..0d933bc1f9 100644
--- a/tests/modeladmin/tests.py
+++ b/tests/modeladmin/tests.py
@@ -229,9 +229,6 @@ class ModelAdminTests(TestCase):
         class AdminBandForm(forms.ModelForm):
             delete = forms.BooleanField()
 
-            class Meta:
-                model = Band
-
         class BandAdmin(ModelAdmin):
             form = AdminBandForm
 
@@ -319,8 +316,7 @@ class ModelAdminTests(TestCase):
             '</select>' % (band2.id, self.band.id))
 
         class AdminConcertForm(forms.ModelForm):
-            class Meta:
-                model = Concert
+            pass
 
             def __init__(self, *args, **kwargs):
                 super(AdminConcertForm, self).__init__(*args, **kwargs)
@@ -685,9 +681,6 @@ class ValidationTests(unittest.TestCase):
         class AdminBandForm(forms.ModelForm):
             delete = forms.BooleanField()
 
-            class Meta:
-                model = Band
-
         class BandAdmin(ModelAdmin):
             form = AdminBandForm
 
diff --git a/tests/timezones/forms.py b/tests/timezones/forms.py
index 3c9c31167e..45fb1d080b 100644
--- a/tests/timezones/forms.py
+++ b/tests/timezones/forms.py
@@ -11,3 +11,4 @@ class EventSplitForm(forms.Form):
 class EventModelForm(forms.ModelForm):
     class Meta:
         model = Event
+        fields = '__all__'