Ember template not updating from arraycontroller - ember.js

Question

In my app, a user can enter a description of a friend or upvote a description that is already present. Both methods (createDescription and upvoteDescription) persist in the database. upvoteDescription changes the DOM, but createDescription does not. It may be because I'm passing a parameter in the model, but I can't get around that -- the api needs it.
//descriptions route
App.DescriptionsRoute = Ember.Route.extend({
...
model: function () {
var store = this.get('store'),
friend = this.modelFor('friend');
return store.find('description', {friend_id: friend.id});
}
})
//descriptions controller
App.DescriptionsController = Ember.ArrayController.extend({
...
actions: {
createDescription: function () {
var name = this.get('name'),
friend_id = this.get('controllers.friend').get('id'),
store = this.get('store'),
description = store.createRecord('description', {
name: name,
friend_id: friend_id
});
description.save();
},
upvoteDescription: function (description) {
var count = description.get('count');
description.set('count', count + 1);
description.save();
}
}
});
//descriptions template
{{input value=name action="createDescription" type="text"}}
{{#each controller}}
<div {{bind-attr data-name=name data-count=count }} {{action upvoteDescription this}}>
<div>{{name}}</div>
<span>{{count}}</span>
</div>
{{/each}}

Answer 1

find (by query) doesn't actively make sure it has the records that match the query, so you'll have to manually inject it into the results.
createDescription: function () {
var name = this.get('name'),
friend_id = this.get('controllers.friend').get('id'),
store = this.get('store'),
description = store.createRecord('description', {
name: name,
friend_id: friend_id
});
description.save();
this.pushObject(description);
},
or you can use a live record array (filter/all)
model: function () {
var store = this.get('store'),
friend = this.modelFor('friend');
store.find('description', {friend_id: friend.id});
return store.filter('description', function(record){
return record.get('friend_id') == friend.id;
});
}