From 7b22a29602fa9d157d35c49a9666908e4672886f Mon Sep 17 00:00:00 2001
From: James Russo <jr@halo3.net>
Date: Fri, 17 May 2024 11:35:49 -0400
Subject: [PATCH] fix: use back_populates is backref is not there

---
 sqlalchemy_utils/listeners.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sqlalchemy_utils/listeners.py b/sqlalchemy_utils/listeners.py
index 02e21be0..6d91c18a 100644
--- a/sqlalchemy_utils/listeners.py
+++ b/sqlalchemy_utils/listeners.py
@@ -241,7 +241,7 @@ class Entry(Base):
     parent_class = attr.parent.class_
     target_class = attr.property.mapper.class_
 
-    backref = attr.property.backref
+    backref = attr.property.backref or attr.property.back_populates
     if not backref:
         raise ImproperlyConfigured(
             'The relationship argument given for auto_delete_orphans needs to '