From ecbdfb97c19c2e5657e7a49f5cb43e827515c150 Mon Sep 17 00:00:00 2001
From: Tom Butcher <thomasbutcher15@gmail.com>
Date: Thu, 20 Aug 2026 19:35:28 +0100
Subject: [PATCH] Add caching for user permissions in Redis

- Introduced utility functions to save user permissions to Redis, enhancing performance by reducing database load.
- Updated user schema to call the new caching function during permission recalculation, ensuring permissions are stored efficiently.
- Improved overall permission management by integrating Redis caching into the existing permission handling workflow.
---
 src/database/permissions.js                    | 11 +++++++++++
 src/database/schemas/management/user.schema.js |  2 ++
 2 files changed, 13 insertions(+)

diff --git a/src/database/permissions.js b/src/database/permissions.js
index 45f30e1..5af91a1 100644
--- a/src/database/permissions.js
+++ b/src/database/permissions.js
@@ -1,4 +1,15 @@
 import mongoose from 'mongoose';
+import { redisServer } from './redis.js';
+
+export const getUserPermissionsCacheKey = (userId) => `permissions:${userId}`;
+
+export const saveUserPermissionsToRedis = async (userId, permissions = {}) => {
+  if (!userId) {
+    return;
+  }
+
+  await redisServer.setKey(getUserPermissionsCacheKey(userId), permissions || {});
+};
 
 export const applyPermissionSettingsList = (settingsList = []) => {
   const permissions = {};
diff --git a/src/database/schemas/management/user.schema.js b/src/database/schemas/management/user.schema.js
index 0112da3..8233075 100644
--- a/src/database/schemas/management/user.schema.js
+++ b/src/database/schemas/management/user.schema.js
@@ -4,6 +4,7 @@ import {
   applyPermissionSettingsList,
   resolvePermissionSettings,
   resolveReferencedDocs,
+  saveUserPermissionsToRedis,
 } from '../../permissions.js';
 
 const { Schema } = mongoose;
@@ -47,6 +48,7 @@ userSchema.statics.recalculate = async function (user, actingUser) {
   if (user && typeof user === 'object' && !user._bsontype) {
     user.permissions = permissions;
   }
+  await saveUserPermissionsToRedis(userId, permissions);
   const { editObject } = await import('../../database.js');
 
   await editObject({