From 65c0de3618a0c8d9f026c72a161ac126697944ad Mon Sep 17 00:00:00 2001
From: Paul Holden <paulh@moodle.com>
Date: Thu, 7 Sep 2023 16:55:19 +0100
Subject: [PATCH] MDL-78619 communication: add customlink to list of standard
 plugins.

Make management URL nullable to avoid section link error when the
whole subsystem is not enabled.
---
 lib/classes/plugin_manager.php           | 1 +
 lib/classes/plugininfo/communication.php | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/classes/plugin_manager.php b/lib/classes/plugin_manager.php
index f322a21796352..6acdf85c850d3 100644
--- a/lib/classes/plugin_manager.php
+++ b/lib/classes/plugin_manager.php
@@ -1826,6 +1826,7 @@ public static function standard_plugins_list($type) {
             ),
 
             'communication' => [
+                'customlink',
                 'matrix',
             ],
 
diff --git a/lib/classes/plugininfo/communication.php b/lib/classes/plugininfo/communication.php
index 93171be638f9e..3c25e618b7464 100644
--- a/lib/classes/plugininfo/communication.php
+++ b/lib/classes/plugininfo/communication.php
@@ -29,7 +29,11 @@
  */
 class communication extends base {
 
-    public static function get_manage_url(): moodle_url {
+    public static function get_manage_url(): ?moodle_url {
+        if (!\core_communication\api::is_available()) {
+            return null;
+        }
+
         return new moodle_url('/admin/settings.php', ['section' => 'managecommunicationproviders']);
     }