Django刷新页面(如果其他用户更改数据) [英] Django refresh page if change data by other user

问题描述

我有一个测试django应用程序.

I have a test django app.

在一页中，测试向所有用户显示相同的问题.

In one page the test show the same question to all users.

我希望当用户正确回答时，向其他活动用户的浏览器发送信号以刷新到下一个问题.

I'd like that when a user answers correctly, send a signal to other active user's browser to refresh to the next question.

我一直在学习有关django中的信号的知识，我正在与他们一起工作，但是现在我不知道如何将刷新信号"发送到客户端浏览器.

I have been learning about signals in django I learning work with them but I don't now how send the "refresh signal" to client browser.

我认为它可以与JavaScript代码一起使用，该代码检查某个值(实际问题)是否发生更改，并且更改是否会重新加载页面，但我不知道该语言，因此我发现所迷惑的信息.

I think that it can do with a javascript code that check if a certain value (actual question) change and if change reload the page but I don't know this language and the information that I find was confused.

有人可以帮助我吗?

非常感谢.

推荐答案

尚无从服务器向浏览器发送事件的方法.但是您可以让您的网页定期轮询服务器(例如每5秒轮询一次).

There is no existing way to send a event from server to browser. But you can get your web page polling your server periodically (say every 5 seconds).

javascript/jquery中的代码可能如下所示

The code in javascript/jquery could be like the following

setInterval(function(){
    $.post("your_ajax_handler_url/is_answerd", userId, function(xhr){
       if(xhr.responseText == "answered"){
          location.reload(true);
       }  
    }
 }, 5000);

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