AngularJS - Empty <option> - Other solutions not working

Question

I'm trying to get rid of this empty <option> in my <select>. I've read a number of other questions about this, but none of them seem to be helping me. Can anybody help me get rid of the empty <option> in this fiddle? Thanks.

http://jsfiddle.net/4CYkd/

js

function testCtrl($scope) {
    $scope.data = {};
    $scope.data.club = {'1':{name:'club name!'}};
    $scope.data.admin = [{related_id:'1',related_table:'club'}]

    //$scope.admin_idx = 0;
}​

html

<div ng-controller="testCtrl">
<select ng-model="admin_idx">
    <option ng-repeat="admin in data.admin" value="{{$index}}">
        {{data[admin.related_table][admin.related_id].name}}</option>
</select>

Answer 1

http://docs.angularjs.org/api/ng.directive:select

http://jsfiddle.net/4CYkd/1/

<select ng-model="admin_idx"
        ng-options="$index as data[admin.related_table][admin.related_id].name for admin in data.admin">
</select>

hope this helps