From 5aa7b5a337fd536d00d84b1f2d0cb681cf8c120c Mon Sep 17 00:00:00 2001
From: sadnub <josh@torchlake.com>
Date: Sun, 10 Apr 2022 22:42:10 -0400
Subject: [PATCH] add custom cache backend for deleting many keys with a
 pattern

---
 api/tacticalrmm/tacticalrmm/cache.py    | 10 ++++++++++
 api/tacticalrmm/tacticalrmm/settings.py |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 api/tacticalrmm/tacticalrmm/cache.py

diff --git a/api/tacticalrmm/tacticalrmm/cache.py b/api/tacticalrmm/tacticalrmm/cache.py
new file mode 100644
index 00000000..fd3d5ef1
--- /dev/null
+++ b/api/tacticalrmm/tacticalrmm/cache.py
@@ -0,0 +1,10 @@
+from django.core.cache.backends.redis import RedisCache
+from typing import Optional
+
+
+class TacticalRedisCache(RedisCache):
+    def delete_many_pattern(self, pattern: str, version: Optional[int] = None) -> None:
+        keys = self._cache.get_client().keys(f":{version if version else 1}:{pattern}")
+
+        if keys:
+            self._cache.delete_many(keys)
diff --git a/api/tacticalrmm/tacticalrmm/settings.py b/api/tacticalrmm/tacticalrmm/settings.py
index 839e8322..0d849634 100644
--- a/api/tacticalrmm/tacticalrmm/settings.py
+++ b/api/tacticalrmm/tacticalrmm/settings.py
@@ -151,7 +151,7 @@ CHANNEL_LAYERS = {
 
 CACHES = {
     "default": {
-        "BACKEND": "django.core.cache.backends.redis.RedisCache",
+        "BACKEND": "tacticalrmm.cache.TacticalRedisCache",
         "LOCATION": f"redis://{REDIS_HOST}:6379",
         "OPTIONS": {
             "parser_class": "redis.connection.HiredisParser",