Use {{outlets}} for user activity views so we can swap some out.

app/assets/javascripts/discourse/controllers/user_activity_controller.js

@@ -35,30 +35,17 @@ Discourse.UserActivityRoute = Discourse.Route.extend({
   }
 });
 
-/**
-  A route for showing a user's activity
-
-  @class UserIndexRoute
-  @extends Discourse.Route
-  @namespace Discourse
-  @module Discourse
-**/
 Discourse.UserActivityIndexRoute = Discourse.Route.extend({
-  privateMessageRoute: function() {
-    return (this.get('userActionType') === Discourse.UserAction.TYPES.messages_sent) ||
-           (this.get('userActionType') === Discourse.UserAction.TYPES.messages_received);
-  }.property('userActionType'),
-
   model: function() {
     return this.modelFor('user').findStream(this.get('userActionType'));
   },
 
-  setupController: function(controller, model) {
-    this.controllerFor('userActivity').setProperties({
-      model: this.modelFor('user'),
-      stream: model,
-      privateMessageView: this.get('privateMessageRoute')
-    });
+  renderTemplate: function() {
+    this.render('user_stream', {into: 'user_activity', outlet: 'activity'});
+  },
+
+  setupController: function() {
+    this.controllerFor('user_activity').set('userActionType', this.get('userActionType'));
   }
 });
 
@@ -69,35 +56,11 @@ Object.keys(Discourse.UserAction.TYPES).forEach(function (userAction) {
   });
 });
 
-// Build the private message routes
+// // Build the private message routes
 Discourse.UserPrivateMessagesRoute = Discourse.UserActivityRoute.extend({});
 Discourse.UserPrivateMessagesIndexRoute = Discourse.UserActivityMessagesReceivedRoute;
 Discourse.UserPrivateMessagesSentRoute = Discourse.UserActivityMessagesSentRoute;
 
-
-/**
-  Show the user's default route
-
-  @class UserIndexRoute
-  @extends Discourse.Route
-  @namespace Discourse
-  @module Discourse
-**/
-Discourse.UserIndexRoute = Discourse.Route.extend({
-  renderTemplate: function() {
-    this.render('user_activity', {into: 'user', outlet: 'userOutlet' });
-  },
-
-  model: function() {
-    return this.modelFor('user').findStream();
-  },
-
-  setupController: function(controller, stream) {
-    var userActivity = this.controllerFor('userActivity');
-    userActivity.setProperties({ model: this.modelFor('user'), stream: stream });
-  }
-});
-
 /**
   This controller supports all actions on a user's activity stream
 
@@ -109,6 +72,11 @@ Discourse.UserIndexRoute = Discourse.Route.extend({
 Discourse.UserActivityController = Discourse.ObjectController.extend({
   needs: ['composer'],
 
+  privateMessageView: function() {
+    return (this.get('userActionType') === Discourse.UserAction.TYPES.messages_sent) ||
+           (this.get('userActionType') === Discourse.UserAction.TYPES.messages_received);
+  }.property('userActionType'),
+
   composePrivateMessage: function() {
     return this.get('controllers.composer').open({
       action: Discourse.Composer.PRIVATE_MESSAGE,

app/assets/javascripts/discourse/templates/user/activity.js.handlebars

@@ -58,4 +58,5 @@
 </div>
 
 
-{{userStream stream=stream}}
+{{outlet activity}}
+

app/assets/javascripts/discourse/views/user/activity_filter_view.js

@@ -1,5 +1,5 @@
 /**
-  This view handles rendering of an activity in a user's stream
+  This view handles rendering of an activity in a user's profile
 
   @class ActivityFilterView
   @extends Discourse.View
@@ -10,18 +10,18 @@ Discourse.ActivityFilterView = Discourse.View.extend({
   tagName: 'li',
   classNameBindings: ['active', 'noGlyph'],
 
-  stream: Em.computed.alias('controller.stream'),
+  userActionType: Em.computed.alias('controller.userActionType'),
   shouldRerender: Discourse.View.renderIfChanged('count'),
   noGlyph: Em.computed.empty('icon'),
 
   active: function() {
     var content = this.get('content');
     if (content) {
-      return parseInt(this.get('stream.filter'), 10) === parseInt(Em.get(content, 'action_type'), 10);
+      return parseInt(this.get('userActionType'), 10) === parseInt(Em.get(content, 'action_type'), 10);
     } else {
-      return this.blank('stream.filter');
+      return this.blank('userActionType');
     }
-  }.property('stream.filter', 'content.action_type'),
+  }.property('userActionType', 'content.action_type'),
 
   activityCount: function() {
     return this.get('content.count') || this.get('count');

app/assets/javascripts/discourse/views/user/user_stream_view.js

@@ -10,7 +10,7 @@
 Discourse.UserStreamView = Ember.CollectionView.extend(Discourse.Scrolling, {
   loading: false,
   elementId: 'user-stream',
-  content: Em.computed.alias('controller.stream.content'),
+  content: Em.computed.alias('controller.model.content'),
   itemViewClass: Ember.View.extend({ templateName: 'user/stream_item' }),
 
   scrolled: function(e) {