From 1cfc7038e46d287f1afe4b710ba4cae409da842d Mon Sep 17 00:00:00 2001
From: Wahyu Ramadhan <ssjrama@gmail.com>
Date: Thu, 20 Jul 2023 08:53:08 +0700
Subject: [PATCH] Fix lag

---
 edit-mode/function/restActivityLink.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/edit-mode/function/restActivityLink.js b/edit-mode/function/restActivityLink.js
index eddfb0c..7a1115c 100644
--- a/edit-mode/function/restActivityLink.js
+++ b/edit-mode/function/restActivityLink.js
@@ -162,10 +162,14 @@ var dp = gantt.createDataProcessor(function(entity, action, data, id) {
                     }
                 });
             }
-            data['duration'] = gantt.calculateDuration({
-                start_date: new Date(data['start_date']),
-                end_date: new Date(data['end_date'])
-            });
+            let newStart = new Date(data['start_date']);
+            let newEnd = new Date(data['end_date']);
+            if (data['start_date'] && data['end_date']) {
+                data['duration'] = gantt.calculateDuration({
+                    start_date: newStart,
+                    end_date: newEnd
+                });   
+            }
             data['geom'] = geom.find(obj => obj.activity_id == id)?.geom;
             return gantt.ajax.put({
                 headers: {