Rails Backbone 应用程序什么都不显示 - 包括错误 - Rails Backbone App Showing Nothing -- Including Errors 小贝子编程网

我一直在Rails上通过thoughtbot的Learn Backbone.js工作，我甚至无法让开始的测试应用程序工作，但我在控制台中也没有收到Javascript错误。

这是我的任务索引.haml 文件

- content_for :javascript do
  - javascript_tag do
    ExampleApp.initialize({ tasks: <%== @tasks.to_json %> });

我的初始值设定项文件：

var ExampleApp = {
  Models: {},
  Collections: {},
  Views: {},
  Routers: {},
  initialize: function() {
    var tasks = new ExampleApp.Collections.Tasks(data.tasks);
    new ExampleApp.Routers.Tasks({ tasks: tasks });
    Backbone.history.start();
  }
};

模型/任务.js

var Task = Backbone.Model.extend({});

集合/任务.js

var Tasks = Backbone.Collection.extend({
    model: Task,
    url: '/tasks'
});

路由器/任务.js

ExampleApp.Routers.Tasks = Backbone.Router.extend({
    routes: {
        "": "index"
    },
    index: function() {
        alert('test');
        // var view = new ExampleApp.Views.TaskIndex({ collection: ExampleApp.tasks });
        // $('body').html(view.render().$el);
    }
});

这是证明我正在调用所有文件的证据（我认为）：

<script src="/assets/jquery.js?body=1" type="text/javascript"></script>
<script src="/assets/jquery_ujs.js?body=1" type="text/javascript"></script>
<script src="/assets/jquery-ui.js?body=1" type="text/javascript"></script>
<script src="/assets/underscore.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone-support/support.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone-support/composite_view.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone-support/swapping_router.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone-support.js?body=1" type="text/javascript"></script>
<script src="/assets/example_app.js?body=1" type="text/javascript"></script>
<script src="/assets/easing.js?body=1" type="text/javascript"></script>
<script src="/assets/modernizr.js?body=1" type="text/javascript"></script>
<script src="/assets/models/task.js?body=1" type="text/javascript"></script>
<script src="/assets/collections/tasks.js?body=1" type="text/javascript"></script>
<script src="/assets/views/task_view.js?body=1" type="text/javascript"></script>
<script src="/assets/views/tasks.js?body=1" type="text/javascript"></script>
<script src="/assets/views/tasks_index.js?body=1" type="text/javascript"></script>
<script src="/assets/routers/tasks.js?body=1" type="text/javascript"></script>
<script src="/assets/tasks/index.js?body=1" type="text/javascript"></script>
<script src="/assets/tasks/task.js?body=1" type="text/javascript"></script>
<script src="/assets/application.js?body=1" type="text/javascript"></script>

有什么想法吗？我对Rails和Backbone都很陌生，所以我不太确定错误在哪里，控制台也没有帮助我。谢谢！

查看源代码时是否看到ExampleApp.initialize代码？

您需要在布局中的某个位置有一个<%= yield :javascript %>才能使此示例正常工作。

遵循以下结构以获得骨干工作。

<!DOCTYPE html>
<html>
<head>
  <title>Blog2</title>
  <%= stylesheet_link_tag    "application" %>
  <%= javascript_include_tag "application" %>
  <%= csrf_meta_tags %>
</head>
<body>
<%= yield %>
</body>
</html>

Rails Backbone 应用程序什么都不显示 - 包括错误

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