Google Apps脚本查找功能来电号码 [英] Google Apps Script Find function caller id

问题描述

我有一个Google Apps脚本，可以动态生成按钮并为每个ClickHandler分配一个ClickHandler，然后调用一个函数。
我的问题是，因为每个按钮调用相同的功能，我无法找到一种方法来确定他们实际上打了电话。这是一个代码示例：

I have a Google Apps Script that dynamically generates buttons and assigns for each a ClickHandler which in turn calls a function. My problem is that because every button calls the same function I can't find a way to indentify which of them actually made the call. Here is a code sample:

var handler = app.createServerHandler("buttonAction");
for (i=1,...) {
  app.createButton(...).setId(i).addClickHandler(handler);
}
function buttonAction() {
  //How do I know what button made the call?
}

推荐答案

另一个选择是使用e.parameter.source值来确定触发serverHandler的元素的ID。

Another option is to use the e.parameter.source value to determine the ID of the element that triggered the serverHandler to be called.

以下是一个示例：

Here's an example:

function doGet(e) {
  var app = UiApp.createApplication();
  var handler = app.createServerHandler("buttonAction");

  for (var i = 0; i < 4; i++) {
    app.add(app.createButton('button'+i).setId(i).addClickHandler(handler));
  }
  return app;
}


function buttonAction(e) {
  var app = UiApp.getActiveApplication();
  Logger.log(e.parameter.source);    
}

e.parameter.source将包含元素的ID，您可以然后用来调用app.getElementById（e.parameter.source）...

e.parameter.source will contain the ID of the element, which you could then use to call app.getElementById(e.parameter.source) ...

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