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packages/app/src/server/routes/apiv3/personal-setting.js

@@ -486,6 +486,8 @@ module.exports = (crowi) => {
     try {
       const query = { userId: req.user.id };
       const update = req.body;
+      // Insert if document does not exist, and return new values
+      // See: https://mongoosejs.com/docs/api.html#model_Model.findOneAndUpdate
       const options = { upsert: true, new: true };
       const response = await EditorSettings.findOneAndUpdate(query, update, options);
       return res.apiv3(response);