From 213c958ab77346d2014cd4c6b5cfa6e09fd84d59 Mon Sep 17 00:00:00 2001
From: hjm <63528605@qq.com>
Date: Tue, 15 Oct 2019 11:42:33 +0800
Subject: [PATCH] item.member_manager

---
 .../react/src/modules/courses/members/CourseGroupListTable.js   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/react/src/modules/courses/members/CourseGroupListTable.js b/public/react/src/modules/courses/members/CourseGroupListTable.js
index 84edb2fc5..4645cf838 100644
--- a/public/react/src/modules/courses/members/CourseGroupListTable.js
+++ b/public/react/src/modules/courses/members/CourseGroupListTable.js
@@ -198,7 +198,7 @@ function CourseGroupListTable(props) {
     const dataSource = course_groups.map(item => {
         return {
             ...item,
-            subStringOfMember_manager : item.member_manager.length > 92 
+            subStringOfMember_manager : (item.member_manager && item.member_manager.length > 92)
                 ? item.member_manager.substring(0, 92) + '...' : null
         }
     })