jQuery AJAX 到 Rails 3，在 Rails 中如何获取通过数据传递的变量?

问题描述

Rails 3 应用程序....我有以下正在运行的 jQuery:

Rails 3 app.... I have the following jQuery which is working:

$.ajax({
    url: '/navigations/sidenav',
    data: "urlpath=" + urlpath,
    success: function(e){
        $("#sideNav-container").slideDown("slow");
    }
});

urlpath 可以是诸如/"或/projects"或/authors"之类的路径.

urlpath can be paths like '/' or '/projects' or '/authors' stuff like that.

我的问题是如何在控制器中获取 urlpath 变量，以便我可以在我的视图中使用它来确定返回给用户的 sidenav?

My question is how do I grab that urlpath variable in the controller so I can use it in my view to determine what sidenav to return to the user?

谢谢

推荐答案

将 urlpath 以散列形式传入data"键.像这样:

Pass in the urlpath in a hash for the "data" key. Like so:

$.ajax({
    url: '/navigations/sidenav',
    data:{"urlpath":urlpath},
    success: function(e){
        $("#sideNav-container").slideDown("slow");
    }
});

这将在 params 对象中传递 urlpath，您可以从控制器访问该对象.所以你可以简单地做

This will then pass urlpath in the params object, that you can access from your controller. So you can simply do

params[:urlpath]

你可以得到你传入的urlpath.:)

and you can get the urlpath you passed in. :)

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