From f3ebe2101711e15c118aee40f0d7d71440387c6d Mon Sep 17 00:00:00 2001
From: flashwave <me@flash.moe>
Date: Wed, 3 Jul 2019 02:00:16 +0200
Subject: [PATCH] Made Mark as read work recursively.

---
 src/Forum/forum.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Forum/forum.php b/src/Forum/forum.php
index 5c85bbd1..1ff51191 100644
--- a/src/Forum/forum.php
+++ b/src/Forum/forum.php
@@ -442,6 +442,15 @@ function forum_mark_read(?int $forumId, int $userId): void {
     }
 
     $entireForum = $forumId === null;
+
+    if(!$entireForum) {
+        $children = forum_get_child_ids($forumId);
+
+        foreach($children as $child) {
+            forum_mark_read($child, $userId);
+        }
+    }
+
     $doMark = db_prepare(sprintf(
         '
             INSERT INTO `msz_forum_topics_track`