From d048268f4d4c0a742f25bcc9dd0b567f6136aafe Mon Sep 17 00:00:00 2001
From: zenggang <zenggang@easycorp.ltd>
Date: Fri, 18 Mar 2022 06:20:44 +0000
Subject: [PATCH] * Finish task#51106

---
 module/tree/model.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/module/tree/model.php b/module/tree/model.php
index bde165aa6e..a67643938f 100644
--- a/module/tree/model.php
+++ b/module/tree/model.php
@@ -124,7 +124,15 @@ class treeModel extends model
     public function getOptionMenu($rootID, $type = 'story', $startModule = 0, $branch = 0)
     {
         if(empty($branch)) $branch = 0;
-        if(defined('TUTORIAL')) return $this->loadModel('tutorial')->getModulePairs();
+        if(defined('TUTORIAL'))
+        {
+            $modulePairs = $this->loadModel('tutorial')->getModulePairs();
+            if(!is_array($branch)) return $modulePairs;
+
+            $modules = array();
+            foreach($branch as $b) $modules[$b] = $modulePairs;
+            return $modules;
+        }
 
         /* If type of $branch is array, get modules of these branches. */
         if(gettype($branch) == 'array')