From 7dc2d3e1266810b98758faeaf3bd4dcab04330ce Mon Sep 17 00:00:00 2001
From: Jan-Hendrik Willms <tleilax+studip@gmail.com>
Date: Tue, 10 Feb 2026 17:21:42 +0100
Subject: allow forum in institutes as well, fixes #6189

Closes #6189

Merge request studip/studip!4687
---
 db/migrations/6.1.18_fix_forum_configurations.php | 33 +++++++++++++++++++++++
 lib/modules/CoreForum.php                         | 26 +++++++++++-------
 2 files changed, 49 insertions(+), 10 deletions(-)
 create mode 100644 db/migrations/6.1.18_fix_forum_configurations.php

diff --git a/db/migrations/6.1.18_fix_forum_configurations.php b/db/migrations/6.1.18_fix_forum_configurations.php
new file mode 100644
index 0000000..aa921fa
--- /dev/null
+++ b/db/migrations/6.1.18_fix_forum_configurations.php
@@ -0,0 +1,33 @@
+<?php
+/**
+ * @see https://gitlab.studip.de/studip/studip/-/issues/6189
+ */
+final class FixForumConfigurations extends Migration
+{
+    public function description()
+    {
+        return 'Fixes new forum configurations to be applied to ranges and not only to courses';
+    }
+
+    protected function up()
+    {
+        $query = "UPDATE `config`
+                  SET `range` = 'range'
+                  WHERE `field` IN (
+                      'FORUM_MODERATION_PERMISSION',
+                      'FORUM_HIDE_CATEGORIES_NAVIGATION'
+                  )";
+        DBManager::get()->exec($query);
+    }
+
+    protected function down()
+    {
+        $query = "UPDATE `config`
+                  SET `range` = 'course'
+                  WHERE `field` IN (
+                      'FORUM_MODERATION_PERMISSION',
+                      'FORUM_HIDE_CATEGORIES_NAVIGATION'
+                  )";
+        DBManager::get()->exec($query);
+    }
+}
diff --git a/lib/modules/CoreForum.php b/lib/modules/CoreForum.php
index 253edcf..450c864 100644
--- a/lib/modules/CoreForum.php
+++ b/lib/modules/CoreForum.php
@@ -25,7 +25,7 @@ class CoreForum extends CorePlugin implements StudipModuleExtended
             new Navigation(_('Themenübersicht'), 'dispatch.php/course/forum/topics')
         );
 
-        if (!CourseConfig::get($course_id)->FORUM_HIDE_CATEGORIES_NAVIGATION) {
+        if (!RangeConfig::get($course_id)->getValue('FORUM_HIDE_CATEGORIES_NAVIGATION')) {
             $navigation->addSubNavigation(
                 'categories',
                 new Navigation(_('Kategorien'), 'dispatch.php/course/forum/categories')
@@ -86,16 +86,22 @@ class CoreForum extends CorePlugin implements StudipModuleExtended
         return null;
     }
 
-    public static function isAdmin($course_id): bool
+    public static function isAdmin($range_id): bool
     {
-        return $GLOBALS['perm']->have_perm('root') || $GLOBALS['perm']->have_studip_perm('dozent', $course_id);
+        return $GLOBALS['perm']->have_perm('root')
+            || $GLOBALS['perm']->have_studip_perm('dozent', $range_id);
     }
 
-    public static function isModerator($course_id): bool
+    public static function isModerator($range_id): bool
     {
-        return self::isAdmin($course_id) ||
-            CourseConfig::get($course_id)->FORUM_MODERATION_PERMISSION === $GLOBALS['perm']->get_studip_perm($course_id) ||
-            CourseConfig::get($course_id)->FORUM_MODERATION_PERMISSION === 'all';
+        if (self::isAdmin($range_id)) {
+            return true;
+        }
+
+        $moderation_permission = RangeConfig::get($range_id)->getValue('FORUM_MODERATION_PERMISSION');
+
+        return $moderation_permission === 'all'
+            || $GLOBALS['perm']->have_studip_perm($moderation_permission, $range_id);
     }
 
 
@@ -123,9 +129,9 @@ class CoreForum extends CorePlugin implements StudipModuleExtended
         ];
     }
 
-    public static function deleteCourseContents($course_id): void
+    public static function deleteCourseContents($range_id): void
     {
-        \Forum\Category::deleteBySQL("range_id = ?", [$course_id]);
-        \Forum\Topic::deleteBySQL("range_id = ?", [$course_id]);
+        \Forum\Category::deleteBySQL("range_id = ?", [$range_id]);
+        \Forum\Topic::deleteBySQL("range_id = ?", [$range_id]);
     }
 }
-- 
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