diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/lookup/models.py | 11 | ||||
| -rw-r--r-- | tests/lookup/tests.py | 7 |
2 files changed, 18 insertions, 0 deletions
diff --git a/tests/lookup/models.py b/tests/lookup/models.py index 2fa5b87755..1c7ea799a6 100644 --- a/tests/lookup/models.py +++ b/tests/lookup/models.py @@ -43,9 +43,20 @@ class Tag(models.Model): ordering = ('name', ) +class NulledTextField(models.TextField): + pass + + +@NulledTextField.register_lookup +class NulledTransform(models.Transform): + lookup_name = 'nulled' + template = 'NULL' + + class Season(models.Model): year = models.PositiveSmallIntegerField() gt = models.IntegerField(null=True, blank=True) + nulled_text_field = NulledTextField(null=True) def __str__(self): return str(self.year) diff --git a/tests/lookup/tests.py b/tests/lookup/tests.py index 41270cd19f..37e98f43e2 100644 --- a/tests/lookup/tests.py +++ b/tests/lookup/tests.py @@ -839,3 +839,10 @@ class LookupTests(TestCase): '<Article: Article 7>'], ordered=False ) + + def test_exact_none_transform(self): + """Transforms are used for __exact=None.""" + Season.objects.create(year=1, nulled_text_field='not null') + self.assertFalse(Season.objects.filter(nulled_text_field__isnull=True)) + self.assertTrue(Season.objects.filter(nulled_text_field__nulled__isnull=True)) + self.assertTrue(Season.objects.filter(nulled_text_field__nulled__exact=None)) |