From ad021f7714c3ba1a3fbeade61f5e8b970aea383c Mon Sep 17 00:00:00 2001
From: Joe Pavitt <joepavitt@flowforge.com>
Date: Fri, 19 Jan 2024 11:29:50 +0000
Subject: [PATCH] UI Chart - Ensure server-side store also replaces if
 "replace" action is chosen

---
 nodes/widgets/ui_chart.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nodes/widgets/ui_chart.js b/nodes/widgets/ui_chart.js
index 895a113b3..668083e77 100644
--- a/nodes/widgets/ui_chart.js
+++ b/nodes/widgets/ui_chart.js
@@ -142,6 +142,10 @@ module.exports = function (RED) {
                     // clear history
                     datastore.save(base, node, [])
                 } else {
+                    if (config.action === 'replace') {
+                        // clear our data store as we are replacing data
+                        datastore.save(base, node, [])
+                    }
                     if (!Array.isArray(msg.payload)) {
                         // quick clone of msg, and store in history
                         datastore.append(base, node, {