From 3e763c370fe50b594dd012917ea75fd0184bd69f Mon Sep 17 00:00:00 2001
From: David Diamant <david@homelend.com>
Date: Thu, 28 Sep 2023 14:28:23 +0300
Subject: [PATCH 1/2] add historic one to one field

---
 simple_history/models.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/simple_history/models.py b/simple_history/models.py
index 6dc4db9e8..80eb06ba9 100644
--- a/simple_history/models.py
+++ b/simple_history/models.py
@@ -3,6 +3,7 @@
 import uuid
 import warnings
 from functools import partial
+from typing import TypeVar
 
 from django.apps import apps
 from django.conf import settings
@@ -15,7 +16,9 @@
 from django.db.models.fields.related import ForeignKey
 from django.db.models.fields.related_descriptors import (
     ForwardManyToOneDescriptor,
+    ForwardOneToOneDescriptor,
     ReverseManyToOneDescriptor,
+    ReverseOneToOneDescriptor,
     create_reverse_many_to_one_manager,
 )
 from django.db.models.query import QuerySet
@@ -45,6 +48,13 @@
 except ImportError:
     from threading import local as LocalContext
 
+
+# __set__ value type
+_ST = TypeVar("_ST")
+# __get__ return type
+_GT = TypeVar("_GT")
+
+
 registered_models = {}
 
 
@@ -909,6 +919,21 @@ def to_historic(instance):
     return getattr(instance, SIMPLE_HISTORY_REVERSE_ATTR_NAME, None)
 
 
+class HistoricForwardOneToOneDescriptor(ForwardOneToOneDescriptor,
+                                        HistoricForwardManyToOneDescriptor):
+    pass
+
+
+class HistoricReverseOneToOneDescriptor(ReverseOneToOneDescriptor,
+                                        HistoricReverseManyToOneDescriptor):
+    pass
+
+
+class HistoricOneToOneField(models.OneToOneField[_ST, _GT]):
+    forward_related_accessor_class = HistoricForwardOneToOneDescriptor
+    related_accessor_class = HistoricReverseOneToOneDescriptor
+
+
 class HistoricalObjectDescriptor:
     def __init__(self, model, fields_included):
         self.model = model

From 5091489c9a140738a746c12d569bd729468c39ba Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Thu, 28 Sep 2023 11:29:04 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 simple_history/models.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/simple_history/models.py b/simple_history/models.py
index 80eb06ba9..41a6f158e 100644
--- a/simple_history/models.py
+++ b/simple_history/models.py
@@ -919,13 +919,15 @@ def to_historic(instance):
     return getattr(instance, SIMPLE_HISTORY_REVERSE_ATTR_NAME, None)
 
 
-class HistoricForwardOneToOneDescriptor(ForwardOneToOneDescriptor,
-                                        HistoricForwardManyToOneDescriptor):
+class HistoricForwardOneToOneDescriptor(
+    ForwardOneToOneDescriptor, HistoricForwardManyToOneDescriptor
+):
     pass
 
 
-class HistoricReverseOneToOneDescriptor(ReverseOneToOneDescriptor,
-                                        HistoricReverseManyToOneDescriptor):
+class HistoricReverseOneToOneDescriptor(
+    ReverseOneToOneDescriptor, HistoricReverseManyToOneDescriptor
+):
     pass