问题描述
我有一个Google Web应用程序,显示一个HTML仪表板,其中包含通过AJAX提取的数据.电子表格使用Google表单填充,我希望每10秒钟左右更新一次数据(模拟选举结果),以便投票通过,以便老师可以看到实时结果.
I have a Google web app displaying an HTML dashboard with data pulled in via AJAX. The Spreadsheet is populated using a Google Form and I'd like the data (mock election results) to be updated every 10 seconds or so as votes come in so teachers can see live results.
这是应用程序的相关部分:
Here's the relevant portion of the app:
code.gs
function getData() {
var sheet = ss.getSheets()[3];
var data = sheet.getDataRange().getValues();
Logger.log(data);
return JSON.stringify(data);
}
function doGet() {
return HtmlService
.createTemplateFromFile("index")
.evaluate();
}
HTML模板
function popularVote(data) {
var getDivs = document.getElementsByClassName("percent");
var data = JSON.parse(data);
for(var j=0;j<getDivs.length;j++) {
getDivs[j].textContent = ((data[j][1]/data[j][2]) * 100).toFixed(1) + "%";
}
}
google.script.run.withSuccessHandler(popularVote).getData();
<div class="card" id="popular">
<div class="cand" id="cand1">
<h2>Candidate:</h2><span class="percent">Loading...</span>
</div>
<div class="cand" id="cand2">
<h2>Candidate:</h2><span class="percent">Loading...</span>
</div>
<div class="cand" id="cand3">
<h2>Candidate:</h2><span class="percent">Loading...</span>
</div>
</div>
我不知道是什么实际上可以提取数据.成功处理程序是否正在轮询服务器?还是客户端脚本?我应该在哪里包含 Utilities.sleep
或类似的文件?
What I can't figure it out is what actually pulls the data. Is the the success handler polling the server? Or is it the client-side script? Where should I include Utilities.sleep
or similar?
推荐答案
似乎这一行从电子表格中获取数据:
It seems like this line is getting the data from the spreadsheet:
google.script.run.withSuccessHandler(popularVote).getData();
您可以尝试将此行包装在setInterval中,以便每十秒钟调用一次:
You could try wrapping this line in setInterval so that it is called every ten seconds:
setInterval(function(){
google.script.run.withSuccessHandler(popularVote).getData();
}, 10000);
setInterval可能也有等效的Google Apps脚本.
There also may be a Google Apps Script equivalent for setInterval.
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