Fixed #6970 -- Raise the original IntegrityError when all required fields aren't specified in get_or_create instead of a misleading DoesNotExist error, thanks deadwisdom.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8398 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/query.py

@@ -332,7 +332,10 @@ class QuerySet(object):
                 return obj, True
             except IntegrityError, e:
                 transaction.savepoint_rollback(sid)
-                return self.get(**kwargs), False
+                try:
+                    return self.get(**kwargs), False
+                except self.model.DoesNotExist:
+                    raise e
 
     def latest(self, field_name=None):
         """