From 14e2c9e6dd12f930f156cfedce2b984fc08c0def Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Wed, 8 Apr 2026 11:15:25 +0200
Subject: WIP

---
 ishtar_common/utils.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'ishtar_common/utils.py')

diff --git a/ishtar_common/utils.py b/ishtar_common/utils.py
index cb6511d9d..2135af3a6 100644
--- a/ishtar_common/utils.py
+++ b/ishtar_common/utils.py
@@ -2395,6 +2395,22 @@ def get_m2m_values(obj):
     return hist_values
 
 
+def update_cached_hierarchy(obj):
+    updates = {}
+    for attr in obj.CACHED_HIERARCHY:
+        # for each type get all hierarchy then eliminate duplicate
+        cached_attr = f"cached_hierarchy_{attr}"
+        values = list(sorted(
+            set(chain(*[
+                v.get_label_hierarchy() for v in getattr(obj, attr).all()
+            ]))
+        ))
+        if values != getattr(obj, cached_attr):
+            updates[cached_attr] = values
+    if updates:
+        obj.__class__.objects.filter(pk=obj.pk).update(**updates)
+
+
 def manage_m2m(obj, kwargs):
     obj._queue = kwargs.get("queue", settings.CELERY_DEFAULT_QUEUE)
     hist_values = get_m2m_values(obj)
-- 
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