javascript - Ember js 在 willTransition 中转换为模型 id

Question

这是我的路由器

App.Router.map(function(){
    this.resource('courses');
    this.resource('course', { path: '/courses/:course_id'}, function(){
    });

});

在我的 CoursesRoute 中我有 -

actions: {
    willTransition: function(transition) {
        // how to access the intended transition or the intended model id
        if(this.get('model.id') == 102) { // here model is not accessible
            transition.abort();
        }

        // Since courses is a ArrayController I get all the courses inside this.get('controller.content')

        // But how do I get the model ID of the selected course.
    }
}

这是在类(class)模板中使用的

{{#link-to 'course' this class='thumbnail course'}}

Answer 1

您应该能够像这样找到上下文模型的 ID:

actions: {
    willTransition: function(transition) {
        var contexts = transition.intent.contexts; // array of all context models
        var contextID = contexts[0].id; // if you only expect one model, this is its ID
        if(contextID == 102) { // now you can use the ID for your condition
            transition.abort();
        }
    }
}