From 0e2b7458d7ac98e312c1a231b9dfe7d0965ea986 Mon Sep 17 00:00:00 2001
From: Justin Reynolds <justinr1234@gmail.com>
Date: Tue, 12 Mar 2019 12:04:59 -0500
Subject: Fix watchers undefined #2252

---
 models/activities.js | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/models/activities.js b/models/activities.js
index 84c45856..1e97895d 100644
--- a/models/activities.js
+++ b/models/activities.js
@@ -113,9 +113,11 @@ if (Meteor.isServer) {
     }
     if (activity.oldBoardId) {
       const oldBoard = activity.oldBoard();
-      watchers = _.union(watchers, oldBoard.watchers || []);
-      params.oldBoard = oldBoard.title;
-      params.oldBoardId = activity.oldBoardId;
+      if (oldBoard) {
+        watchers = _.union(watchers, oldBoard.watchers || []);
+        params.oldBoard = oldBoard.title;
+        params.oldBoardId = activity.oldBoardId;
+      }
     }
     if (activity.memberId) {
       participants = _.union(participants, [activity.memberId]);
@@ -129,15 +131,19 @@ if (Meteor.isServer) {
     }
     if (activity.oldListId) {
       const oldList = activity.oldList();
-      watchers = _.union(watchers, oldList.watchers || []);
-      params.oldList = oldList.title;
-      params.oldListId = activity.oldListId;
+      if (oldList) {
+        watchers = _.union(watchers, oldList.watchers || []);
+        params.oldList = oldList.title;
+        params.oldListId = activity.oldListId;
+      }
     }
     if (activity.oldSwimlaneId) {
       const oldSwimlane = activity.oldSwimlane();
-      watchers = _.union(watchers, oldSwimlane.watchers || []);
-      params.oldSwimlane = oldSwimlane.title;
-      params.oldSwimlaneId = activity.oldSwimlaneId;
+      if (oldSwimlane) {
+        watchers = _.union(watchers, oldSwimlane.watchers || []);
+        params.oldSwimlane = oldSwimlane.title;
+        params.oldSwimlaneId = activity.oldSwimlaneId;
+      }
     }
     if (activity.cardId) {
       const card = activity.card();
-- 
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