From a73a4255c2f25698b18d8c6eb296bfbef2b0b6e6 Mon Sep 17 00:00:00 2001
From: Matthias <matthias.mair@oewf.org>
Date: Wed, 1 Dec 2021 20:36:15 +0100
Subject: [PATCH] helper to get all inheriting classes

---
 InvenTree/InvenTree/helpers.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/InvenTree/InvenTree/helpers.py b/InvenTree/InvenTree/helpers.py
index 6765180e1a..2e34c8f7d8 100644
--- a/InvenTree/InvenTree/helpers.py
+++ b/InvenTree/InvenTree/helpers.py
@@ -736,3 +736,18 @@ def get_objectreference(obj, type_ref: str = 'content_type', object_ref: str = '
         'model': str(model_cls._meta.verbose_name),
         **ret
     }
+
+
+def inheritors(cls):
+    """
+    Return all classes that are subclasses from the supplied cls
+    """
+    subcls = set()
+    work = [cls]
+    while work:
+        parent = work.pop()
+        for child in parent.__subclasses__():
+            if child not in subcls:
+                subcls.add(child)
+                work.append(child)
+    return subcls