Step 6.11: Add chat name filter

src/filters/chat-name.filter.js

@@ -0,0 +1,17 @@
+import { _ } from 'meteor/underscore';
+import { Meteor } from 'meteor/meteor';
+import { Filter } from 'angular-ecmascript/module-helpers';
+
+export default class ChatNameFilter extends Filter {
+  static $name = 'chatName'
+
+  filter(chat) {
+    if (!chat) return;
+
+    let otherId = _.without(chat.userIds, Meteor.userId())[0];
+    let otherUser = Meteor.users.findOne(otherId);
+    let hasName = otherUser && otherUser.profile && otherUser.profile.name;
+
+    return hasName ? otherUser.profile.name : chat.name || 'NO NAME';
+  }
+}