EmberJS - Sorting data prior to showing

I have a set of json data I get from server, what I need is to sort them before I show to screen.

Data Example:

{
    "statuses": [
        {
            "id": 1,
            "title":"Post title 1",
            "date":"2014-12-20T11:30:48+0000",
            "sticky":true,
            "comments":[]
        },
        {
            "id": 2,
            "title":"Post title 2",
            "date":"2014-12-25T11:30:48+0000",
            "sticky":false,
            "comments":[]
        },
        {
            "id": 3,
            "title":"Post title 3",
            "date":"2014-12-15T11:30:48+0000",
            "sticky":true,
            "comments":[]
        },
        {
            "id": 4,
            "title":"Post title 4",
            "date":"2014-12-10T11:30:48+0000",
            "sticky":false,
            "comments":[]
        }
    ]
}

I need to

1. Show sticky statuses first sticky: true sort by date descending.


2. After then show normal statuses sticky: false sort by date descending

So far I was just able to list them in given data order. You can see the example here http://ift.tt/1CGz9xS