Handle Django 5.1 deprecation for get_cache_name

tim-schilling · Nov 20, 2024 · 4af5154 · 4af5154
1 parent baef016
commit 4af5154
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/simple_history/models.py b/simple_history/models.py
@@ -901,9 +901,13 @@ def related_manager_cls(self):
         class HistoricRelationModelManager(related_model._default_manager.__class__):
             def get_queryset(self):
                 try:
-                    return self.instance._prefetched_objects_cache[
+                    # DEV: Remove this when support for Django 4.2 has been dropped
+                    cache_name = (
                         self.field.remote_field.get_cache_name()
-                    ]
+                        if django.VERSION < (5, 0)
+                        else self.field.remote_field.cache_name
+                    )
+                    return self.instance._prefetched_objects_cache[cache_name]
                 except (AttributeError, KeyError):
                     history = getattr(
                         self.instance, SIMPLE_HISTORY_REVERSE_ATTR_NAME, None