Ticket #8795: django-8795.diff

django/forms/models.py

@@ -210 +210 @@
 
     def validate_unique(self):
         from django.db.models.fields import FieldDoesNotExist
-        unique_checks = list(self.instance._meta.unique_together[:])
+        unique_checks = [check for check in self.instance._meta.unique_together[:] if len([x for x in check if x in self.fields.keys()]) == len(check)]
         form_errors = []
         
         # Make sure the unique checks apply to actual fields on the ModelForm

tests/modeltests/model_forms/models.py

@@ -1192 +1192 @@
 >>> form._errors
 {'__all__': [u'Price with this Price and Quantity already exists.']}
 
+>>> class PriceForm(ModelForm):
+...     class Meta:
+...         model = Price
+...         exclude = ('quantity',)
+>>> form = PriceForm({'price': '6.00'})
+>>> form.is_valid()
+True
+
 # Choices on CharField and IntegerField
 >>> class ArticleForm(ModelForm):
 ...     class Meta: