用额外的视图逻辑属性丰富angularjs-json数据

当我从服务器加载json数据时，我需要在json数据上有额外的仅查看属性。但这是不可能的。

然后我想从这样的工厂创建angularjs模型

'use strict';
angular.module('TGB').factory('TestViewModel', function () {
    function TestViewModel(test) {
        this.id = test.id;
        this.schoolclassCode = test.schoolclassCode;
        this.testType = test.type;
        this.creationDate = test.date;
        this.number = test.number;
        this.isExpanded = false;
    }
    return (TestViewModel);
});

你在哪里创建这些有角度的视图模型？

At the moment I have this method in my Controller , call it there and assign the result to $scope.testViewModels = toTestListViewModel(tests)
function toTestListViewModel(tests)
    {
        var testListViewModel = [];
        for (var i = 0; i < tests.length; i++) {
            var testViewModel = new TestViewModel(tests[i]);
            testListViewModel.push(testViewModel);
        } 
        return testListViewModel;
    }