javascript 对 Rails 中的控制器动作进行 ajax 调用
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17344045/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
making an ajax call to controller action in rails
提问by nicosantangelo
I am trying to make an ajax call to my controller
我正在尝试对我的控制器进行 ajax 调用
class PatientRecordController < ApplicationController
def export
....
end
end
In my javascript file i have
在我的 javascript 文件中，我有
$(document).ready(function(){
freezeTopRow($('#dataTable'));
$("#export").click(function(){
$.ajax({url: "patient_record/export", type: "POST"});
});
});
when i inspect element and debug and when i click the export tag on my page. i hit the function however it never gets to the controller
当我检查元素和调试时以及当我单击页面上的导出标记时。我点击了这个功能，但它永远不会到达控制器
Also I have 2 controllers and 2 views. In my other controller and view I do the same thing and it works
我还有 2 个控制器和 2 个视图。在我的另一个控制器和视图中，我做同样的事情并且它有效
回答by nicosantangelo
Have you checked that you routes.rbhave something like:
你有没有检查过你routes.rb有类似的东西：
post 'patient_record/export'
Maybe Rails doesn't know the route so the ajax isn't working (if you can get to the action from your browser it means that you have only a GETset, you can check that changing the type of the request in the ajax call)
也许 Rails 不知道路由，所以 ajax 不起作用（如果您可以从浏览器获取操作，则意味着您只有一个GET集合，您可以检查更改 ajax 调用中的请求类型）
回答by pjmorse
You also need a route for the exportaction in your config/routes.rbfile, something like
您还需要文件中export操作的路由config/routes.rb，例如
resources :patient_records do
member do
post :export
end
end
You can check to see if this already exists by running rake routes | grep 'export'.
您可以通过运行来检查它是否已经存在rake routes | grep 'export'。
