From c3a98d8a2008f1dbf885290629b1090a65555905 Mon Sep 17 00:00:00 2001
From: Dono <3781087+Donorhan@users.noreply.github.com>
Date: Mon, 14 Aug 2023 11:28:16 +0200
Subject: [PATCH] 1 - messages: fix error with insertMany

---
 core/modules/messages/server/messages.js | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/core/modules/messages/server/messages.js b/core/modules/messages/server/messages.js
index 3bb83639a..fe908b9ab 100644
--- a/core/modules/messages/server/messages.js
+++ b/core/modules/messages/server/messages.js
@@ -60,14 +60,16 @@ const notifyUsers = message => {
     userIds = Meteor.users.find({ _id: { $ne: createdBy }, 'status.online': true, 'profile.levelId': channel }, { fields: { 'profile._id': 1 } }).fetch().map(item => item._id);
   } else userIds = channel.split(';').filter(userId => userId !== createdBy);
 
-  const notifications = userIds.map(userId => ({
-    _id: Notifications.id(),
-    channelId: channel,
-    userId,
-    createdAt: new Date(),
-    createdBy,
-  }));
-  Notifications.rawCollection().insertMany(notifications);
+  if (userIds.length) {
+    const notifications = userIds.map(userId => ({
+      _id: Notifications.id(),
+      channelId: channel,
+      userId,
+      createdAt: new Date(),
+      createdBy,
+    }));
+    Promise.await(Notifications.rawCollection().insertMany(notifications));
+  }
 
   log('notifyUsers: done', { userIds });
 };