Computed property in handlebar #if not updating - ember.js

Question

I am trying to use the following template:
<script type="text/x-handlebars" data-template-name="login">
{{#if logged_in}}
Logged in
{{else}}
Not logged in
{{/if}}
</script>
with the model:
App.Login = DS.Model.extend({
access_token: DS.attr('string'),
logged_in: function() {
return (this.get('access_token') != null);
}.property('access_token')
});
to display the user's logged-in state.
The access_token is being set via an async callback in the Route's setupController:
App.LoginRoute = Ember.Route.extend({
setupController: function(controller, model) {
controller.set('content', model);
// call async login method
window.setInterval(function test() {
model.set('access_token', 'MY_ACCESS_TOKEN');
console.log(model.get('access_token'));
}, 5000);
},
model: function() {
return App.Login.find();
}
});
The problem is logged_in never seems to change (even though the model.set line is executed and 'access_token' is updated). Am I doing something wrong or should I be filing a bug?
Full code: http://jsfiddle.net/Q8eHq/

Answer 1

You are setting the model to App.Login.find() which returns an enumerable, not a single object. One way to do it, is to set the model to a single object:
App.LoginRoute = Ember.Route.extend({
model: function() {
return App.Login.find(1);
}
});
Or if you are going to use a dynamic route (e.g. users/login/9):
App.LoginRoute = Ember.Route.extend({
model: function(params) {
return App.Login.find(params.id);
}
});