Fixed #24295 -- Allowed ModelForm meta to specify form field classes.

Thanks Carl Meyer and Markus Holtermann for the reviews.

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/model_formsets/tests.py b/tests/model_formsets/tests.py
index 2d0380195b..217a1a1049 100644
--- a/tests/model_formsets/tests.py
+++ b/tests/model_formsets/tests.py
@@ -1431,3 +1431,21 @@ class TestModelFormsetOverridesTroughFormMeta(TestCase):
         form = BookFormSet.form(data={'title': 'Foo ' * 30, 'author': author.id})
         form.full_clean()
         self.assertEqual(form.errors, {'title': ['Title too long!!']})
+
+    def test_modelformset_factory_field_class_overrides(self):
+        author = Author.objects.create(pk=1, name='Charles Baudelaire')
+        BookFormSet = modelformset_factory(Book, fields="__all__", field_classes={
+            'title': forms.SlugField,
+        })
+        form = BookFormSet.form(data={'title': 'Foo ' * 30, 'author': author.id})
+        self.assertIs(Book._meta.get_field('title').__class__, models.CharField)
+        self.assertIsInstance(form.fields['title'], forms.SlugField)
+
+    def test_inlineformset_factory_field_class_overrides(self):
+        author = Author.objects.create(pk=1, name='Charles Baudelaire')
+        BookFormSet = inlineformset_factory(Author, Book, fields="__all__", field_classes={
+            'title': forms.SlugField,
+        })
+        form = BookFormSet.form(data={'title': 'Foo ' * 30, 'author': author.id})
+        self.assertIs(Book._meta.get_field('title').__class__, models.CharField)
+        self.assertIsInstance(form.fields['title'], forms.SlugField)