From a56d0e6f784f3d0e1107f41c8c7a3f2423686c14 Mon Sep 17 00:00:00 2001
From: Rahul Prasad <dev.rahulprasad@gmail.com>
Date: Wed, 21 Sep 2022 12:23:10 +0530
Subject: [PATCH] added fix for OneToOneRel error happening in case of
 Polymorphic model (#429)

---
 CHANGELOG.md            | 1 +
 auditlog/diff.py        | 6 +++++-
 auditlog_tests/tests.py | 1 -
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66afb7e..b84bfc7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 
 - fix: Display `created` timestamp in server timezone ([#404](https://github.com/jazzband/django-auditlog/pull/404))
 - fix: Handle port in `remote_addr` ([#417](https://github.com/jazzband/django-auditlog/pull/417))
+- fix: Handle the error with AttributeError: 'OneToOneRel' error occur during a `PolymorphicModel` has relation with other models  ([#429](https://github.com/jazzband/django-auditlog/pull/429))
 
 ## 2.1.1 (2022-07-27)
 
diff --git a/auditlog/diff.py b/auditlog/diff.py
index 83cd1aa..74bd9a0 100644
--- a/auditlog/diff.py
+++ b/auditlog/diff.py
@@ -70,7 +70,11 @@ def get_field_value(obj, field):
         else:
             value = smart_str(getattr(obj, field.name, None))
     except ObjectDoesNotExist:
-        value = field.default if field.default is not NOT_PROVIDED else None
+        value = (
+            field.default
+            if getattr(field, "default", NOT_PROVIDED) is not NOT_PROVIDED
+            else None
+        )
 
     return value
 
diff --git a/auditlog_tests/tests.py b/auditlog_tests/tests.py
index 5751f4f..0adb710 100644
--- a/auditlog_tests/tests.py
+++ b/auditlog_tests/tests.py
@@ -1145,7 +1145,6 @@ class ChoicesFieldModelTest(TestCase):
         )
 
     def test_changes_display_dict_single_choice(self):
-
         self.assertEqual(
             self.obj.history.latest().changes_display_dict["status"][1],
             "Red",