Ordering

Hi,

I have a table that shout ordering by country. my Problem is the sorting did not work because I get following json:

{
    "data": [
        {
            "uuid": "9842667f-96c5-454b-aa58-ee689bf5d542",
            "name": "sa",
            "email": "worf@defiant.uss",
            "phone": "+4327 343 43 23 23",
            "website": "http://www.klingon.de",
            "streetAddress": "Kronos 47",
            "streetAddress2": "Moon 13",
            "location": "Kronos",
            "postalCode": "2A45B",
            "state": "Alpha Quadrant",
            "country": {
                "ioc": "USA",
                "iso3166_1_alpha2": "US",
                "iso3166_1_alpha3": "USA",
                "nameEnglish": "United States",
                "nameGerman": "United States of America"
            },
            "DT_RowId": "row_1"
        },
        {
            "uuid": "695463d0-1adf-4a86-9258-c0aac18c3bb5",
            "name": "sdf",
            "email": "troi@enterprise.uss",
            "phone": "+11 111111",
            "website": "http://www.enterprise.com",
            "streetAddress": "Romolus 2x3",
            "streetAddress2": "öäü",
            "location": "Romolus",
            "postalCode": "üöäüää",
            "state": "Delta",
            "country": {
                "ioc": "BEL",
                "iso3166_1_alpha2": "BE",
                "iso3166_1_alpha3": "BEL",
                "nameEnglish": "Belgium",
                "nameGerman": "Belgien"
            },
            "DT_RowId": "row_2"
        },
        {
            "uuid": "2087d7df-a81f-4ffa-ba78-d680580df7f0",
            "name": "Speedfish in the Universe",
            "email": "speedy@speed.com",
            "phone": "+43 664 23 23 23 42",
            "website": "http://www.speed.com",
            "streetAddress": "Hubertusdamm an der Klann 13/3/222",
            "streetAddress2": "",
            "location": "Wien",
            "postalCode": "1231",
            "state": "Wien",
            "country": {
                "ioc": "AUT",
                "iso3166_1_alpha2": "AT",
                "iso3166_1_alpha3": "AUT",
                "nameEnglish": "Austria",
                "nameGerman": "Österreich"
            },
            "DT_RowId": "row_3"
        },
    "draw": "1",
    "recordsTotal": 5,
    "recordsFiltered": 5
}

The Country is send with some additional data.

I have written following js code to show the datatable:

var clist = $('#clublst').DataTable( {
        "ajax": {
            url: 'assets/lib/adm/club_util.php?ct=1',
            type: 'POST'
        },
        "columnDefs": [
            { targets: [ 0, 1, 2, 3, 4, 11 ], visible: true },
            { targets: '_all', visible: false }
        ],
        "columns":[
            { data: "name"},
            { data: "country", width: '5%', render: function(data, type, row){
                var session_lang = '<?php echo $_SESSION["language"] ?>';
                var set_Language = (session_lang == 'de')? data.nameGerman : data.nameEnglish
                return  (data.iso3166_1_alpha2 == '')?
                    '<img title="" src="assets/images/flags/rect/24/em.png" />' :
                    '<img title="' + set_Language + '" src="assets/images/flags/rect/24/' + data.iso3166_1_alpha2 + '.png" />'
            }, className: 'text-center'},
            { data: "email"},
            { data: "phone"},
            { data: "website", render: function(data, type, row){
                return '<a href="' + data + '">' + data + '</a>'
            }},
            { data: "streetAddress"},
            { data: "streetAddress2"},
            { data: "location"},
            { data: "postalCode"},
            { data: "state"},
            { data: "uuid" },
            { data: null, render: function (data, type, row){
                    return '<a href="" class="u-edit btn btn-xs btn-default btn-quick" title="Edit" data-toggle="modal" data-target="#aClub" '
                                + 'data-js-hide-block="successAdmClub;failAdmClub;loadingAdmClub;aClubClose" data-js-show-block="formAdmClub;aClubSave" data-uuid="' + data.uuid +'">'
                                + '<i class="fa fa-pencil" style="padding-right: 0px;"></i></a>'
                }, orderable: false, width: '3%'
            }
        ],
        autoWidth: false,
        select: true,
        initComplete: function () { $('#clublst').removeClass('hidden'); }
    });
});

I know that the sorting did not know with which data the should sort. I have no idea, how can the column define the should sort by ioc code. Have someone a idea?

Andreas