Question

我想基于参数为视图使用自定义控制器。控制器不在路线链中，所以我不认为我可以使用＆＃34;需要＆＃34;。这就是我尝试过的，但对我来说效果不佳！

App.MyBasicsView = Ember.View.extend({
    //TRY 1: failed 
    initialize: function () {
        var someParam = get some param from default controller;//failed controller is not set at this instance
        //based on someParam initialize a controller and set this to the view
    }.on('init')

    //TRY 2 : no errors but the template doesn't render
    setController: function(){
        var container = this.get("controller.container"),
        model = this.get("controller.model"),
        controller = MY-CUSTOM-CONTROLLER.create({'container': container, 'model': model});
        this.set('controller', controller);
    }.observes('controller.someParam')

...
}

Answer 1

在这种情况下，最好使用Ember.Component而不是Ember.View并从模板传递模型

例如：

someParam是控制器中的属性

{{my-basics myBasicProperty=someParam}}

Answer 2

好的，我们最终在路线中使用了rederTemplate挂钩：

renderTemplate: function (controller, model) {
    var questionType = some-type,
        controllerName = (questionType.classify())+"BasicsController",
        template = 'views.questions.basics.' + questionType + "-question",
        typeBasedController = controller;

    //if cannot resolve the template then use the default template
    template = (this.container.resolve('template:' + template)) ? template : 'views.questions.basics.default-question';
    var factory = this.container.lookupFactory('controller:' + controllerName);
    if (factory) {
        typeBasedController = factory.create({'model': model });
    }

    this.render(template, {
        'controller': typeBasedController
    });
}

它基本上让我们使用控制器和我们想要的视图。现在在最新的ember版本中，使用像这样的帮助器更简单：

{{#with model controller="myDesiredController}}
.......
{{/with}}

是否可以将视图的控制器切换为其他内容

2 个答案: