From 51cc9cd13e309b5e21e53675d4def2057f33a4bf Mon Sep 17 00:00:00 2001
From: travis00001 <78240096+travis00001@users.noreply.github.com>
Date: Sat, 6 Feb 2021 15:35:50 -0500
Subject: [PATCH] Support selecting Redis database ID (#3208)

---
 system/src/Grav/Common/Cache.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/system/src/Grav/Common/Cache.php b/system/src/Grav/Common/Cache.php
index dea370ff6..24f1d4010 100644
--- a/system/src/Grav/Common/Cache.php
+++ b/system/src/Grav/Common/Cache.php
@@ -296,6 +296,7 @@ class Cache extends Getters
                     $redis = new \Redis();
                     $socket = $this->config->get('system.cache.redis.socket', false);
                     $password = $this->config->get('system.cache.redis.password', false);
+                    $databaseId = $this->config->get('system.cache.redis.database', 0);
 
                     if ($socket) {
                         $redis->connect($socket);
@@ -310,6 +311,11 @@ class Cache extends Getters
                     if ($password && !$redis->auth($password)) {
                         throw new \RedisException('Redis authentication failed');
                     }
+                    
+                    // Select alternate ( !=0 ) database ID if set
+                    if ($databaseId && !$redis->select($databaseId)) {
+                        throw new \RedisException('Could not select alternate Redis database ID');
+                    }
 
                     $driver = new DoctrineCache\RedisCache();
                     $driver->setRedis($redis);