Fix issue where new properties were unusable. (#2435)

Author: mrstegeman

static/js/models/gateway-model.js

@@ -50,7 +50,10 @@ class GatewayModel extends Model {
   }
 
   setThing(thingId, description) {
-    if (!this.thingModels.has(thingId)) {
+    if (this.thingModels.has(thingId)) {
+      const thingModel = this.thingModels.get(thingId);
+      thingModel.updateFromDescription(description);
+    } else {
       const thingModel = new ThingModel(description, this.ws);
       thingModel.subscribe(
         Constants.DELETE_THING,

static/js/models/thing-model.js

@@ -15,11 +15,22 @@ const Constants = require('../constants');
 class ThingModel extends Model {
   constructor(description, ws) {
     super();
-    this.title = description.title;
     this.properties = {};
     this.events = [];
     this.connected = false;
 
+    this.updateFromDescription(description);
+
+    this.initWebSocket(ws);
+
+    this.updateEvents();
+
+    return this;
+  }
+
+  updateFromDescription(description) {
+    this.title = description.title;
+
     // Parse base URL of Thing
     if (description.href) {
       this.href = new URL(description.href, App.ORIGIN);
@@ -57,12 +68,6 @@ class ThingModel extends Model {
         this.eventDescriptions[eventName] = event;
       }
     }
-
-    this.initWebSocket(ws);
-
-    this.updateEvents();
-
-    return this;
   }
 
   /**