From 71894c34aa4781497ace8f847927ef7e05c8dfaa Mon Sep 17 00:00:00 2001
From: zadam <adam.zivner@gmail.com>
Date: Sat, 3 Oct 2020 20:51:14 +0200
Subject: [PATCH] fix migration so that only really changed notes are updated,
 #1254

---
 db/migrations/0169__convert_h1_to_h2.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/db/migrations/0169__convert_h1_to_h2.js b/db/migrations/0169__convert_h1_to_h2.js
index 14696580e..f1c2cc4bd 100644
--- a/db/migrations/0169__convert_h1_to_h2.js
+++ b/db/migrations/0169__convert_h1_to_h2.js
@@ -3,13 +3,15 @@ const repository = require('../../src/services/repository');
 module.exports = () => {
     for (const note of repository.getEntities("SELECT * FROM notes WHERE type = 'text' AND isProtected = 0")) {
         try {
-            let content = note.getContent();
+            let origContent = note.getContent();
 
-            content = content
+            const newContent = origContent
                 .replace(/<h1/ig, "<h2")
                 .replace(/<\/h1/ig, "</h2");
 
-            note.setContent(content);
+            if (newContent !== origContent) {
+                note.setContent(newContent);
+            }
         }
         catch (e) {
             console.log(`Changing note content for note ${note.noteId} failed with: ${e.message} ${e.stack}`);