设置Angular-UI Select2多指令的初始值

I have a select2 directive for a multiple select of countries with a custom query to grab the data:

我有一个select2指令，用于多个国家/地区的自定义查询以获取数据：

// Directive
<input ng-model="filters.countries" ui-select2="filters.countryOptions"
    data-placeholder="Choose a country...">

// filters.countryOptions
{ 
    multiple: true,
    query: function() { 
        get_list_of_countries(); 
    }
}

// Formatted data from remote source
[
    {id: 'US', text: 'United States'},
    {id: 'CA', text: 'Canada'} ...
]

I'm trying to set the initially selected values in my controller using:

我正在尝试使用以下方法在控制器中设置最初选择的值：

$scope.filters.countries = [{id: 'US', text: 'United States'}];

This does correctly set the model, however this is happening before the select2 initialization has occurred. As I step through the remaining initialization code the input temporarily displays [Object] before finally blanking out $scope.filters.countries and the input, but it does not display the placeholder text in the input.

这确实正确地设置了模型，但这是在select2初始化发生之前发生的。当我单步执行剩余的初始化代码时，输​​入会在最终消隐$ scope.filters.countries和输入之前暂时显示[Object]，但它不会在输入中显示占位符文本。

To get around this I'm using the following to reset the models' initial value:

为了解决这个问题，我使用以下方法重置模型的初始值：

$scope.$on('$viewContentLoaded', function() {
    setTimeout(function() {
        $scope.filters.countries = [{id: 'US', text: 'United States'}];
    }, 100);
});

It seems really hackish to be using a setTimeout. Is there a better way that I'm missing?

使用setTimeout似乎真的很苛刻。有没有更好的方法让我失踪？

Update 1

As requested by ProLoser here is a demo and github ticket.

根据ProLoser的要求，这里有一个demo和github票。

Demo: http://plnkr.co/edit/DgpGyegQxVm7zH1dZIJZ?p=preview

演示：http：//plnkr.co/edit/DgpGyegQxVm7zH1dZIJZ？p = preview

GitHub Issue: https://github.com/angular-ui/angular-ui/issues/455

GitHub问题：https：//github.com/angular-ui/angular-ui/issues/455

Following ProLoser's advice I started using select2's initSelection function:

按照ProLoser的建议，我开始使用select2的initSelection函数：

initSelection : function (element, callback) {
  callback($(element).data('$ngModelController').$modelValue);
},

It does the trick but still feels like a workaround.

这样做但仍然感觉像是一种解决方法。

2 个解决方案

#1

As requested by ProLoser here is a demo and github ticket.

根据ProLoser的要求，这里有一个demo和github票。

Demo: http://plnkr.co/edit/DgpGyegQxVm7zH1dZIJZ?p=preview

演示：http：//plnkr.co/edit/DgpGyegQxVm7zH1dZIJZ？p = preview

GitHub Issue: https://github.com/angular-ui/angular-ui/issues/455

GitHub问题：https：//github.com/angular-ui/angular-ui/issues/455

Following ProLoser's advice I started using select2's initSelection function:

按照ProLoser的建议，我开始使用select2的initSelection函数：

initSelection : function (element, callback) {
  callback($(element).data('$ngModelController').$modelValue);
},

It does the trick but still feels like a workaround.

这样做但仍然感觉像是一种解决方法。

#2

Have you tried initialising your options as:

您是否尝试将选项初始化为：

<option selected value="0">Name</option>