Fixes uniqueTagManagers() when the set of tags for a UUID is empty

Fixes #23.
hlapp · Feb 14, 2017 · 20af98d · 20af98d
1 parent d752c5c
commit 20af98d
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/plugins/polling-updater.js b/plugins/polling-updater.js
@@ -235,12 +235,14 @@ PollingTagUpdater.prototype.apiClient = function() {
  * @returns {WirelessTagManager[]}
  */
 PollingTagUpdater.prototype.uniqueTagManagers = function() {
-    let mgrs = Object.keys(this.tagsByUUID).map((uuid) => {
+    let mgrByMAC = new Map();
+    Object.keys(this.tagsByUUID).forEach((uuid) => {
         let tags = Array.from(this.tagsByUUID[uuid]);
-        return tags.length > 0 ? tags[0].wirelessTagManager : undefined;
+        if (tags.length > 0) {
+            let mgr = tags[0].wirelessTagManager;
+            mgrByMAC.set(mgr.mac, mgr);
+        }
     });
-    let mgrByMAC = new Map();
-    mgrs.forEach( (mgr) => mgrByMAC.set(mgr.mac, mgr) );
     return Array.from(mgrByMAC.values());
 };