Fixed #12582. Model validation on ForeignKeys now respects limit_choices_to. Thanks, Honza Král.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12271 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/validation/models.py

@@ -12,7 +12,7 @@ class ModelToValidate(models.Model):
     name = models.CharField(max_length=100)
     created = models.DateTimeField(default=datetime.now)
     number = models.IntegerField()
-    parent = models.ForeignKey('self', blank=True, null=True)
+    parent = models.ForeignKey('self', blank=True, null=True, limit_choices_to={'number': 10})
     email = models.EmailField(blank=True)
     url = models.URLField(blank=True)
     f_with_custom_validator = models.IntegerField(blank=True, null=True, validators=[validate_answer_to_universe])

tests/modeltests/validation/tests.py

@@ -30,9 +30,16 @@ class BaseModelValidationTests(ValidationTestCase):
 
     def test_correct_FK_value_validates(self):
         parent = ModelToValidate.objects.create(number=10, name='Some Name')
-        mtv=ModelToValidate(number=10, name='Some Name', parent_id=parent.pk)
+        mtv = ModelToValidate(number=10, name='Some Name', parent_id=parent.pk)
         self.assertEqual(None, mtv.full_clean())
 
+    def test_limitted_FK_raises_error(self):
+        # The limit_choices_to on the parent field says that a parent object's
+        # number attribute must be 10, so this should fail validation.
+        parent = ModelToValidate.objects.create(number=11, name='Other Name')
+        mtv = ModelToValidate(number=10, name='Some Name', parent_id=parent.pk)
+        self.assertFailsValidation(mtv.full_clean, ['parent'])
+
     def test_wrong_email_value_raises_error(self):
         mtv = ModelToValidate(number=10, name='Some Name', email='not-an-email')
         self.assertFailsValidation(mtv.full_clean, ['email'])