查找&使用Google Apps脚本替换文件夹内的文件 [英] Find & replace in files within a folder using Google Apps Script

问题描述

您可以发布一个代码段，找到&请替换文件夹中的所有文件？

我找到了类似的东西，
谷歌脚本 - 查找和替换功能，搜索多个文件

，但一个搜索 Google云端硬盘中的每个文件，而不是在文件夹中。由于我现在只是通过示例学习Google Apps脚本，所以我不能自己做这个小小的步骤。

编辑：进一步替换部分
$ b

DocumentApp.openById 返回一个类型的文档

然而，我找不到 replaceText 方法在文档键入文档：
https： //developers.google.com/apps-script/reference/document/document

好吧，我再深入挖掘，发现另一个例子，
无法通过replaceText（）访问的Google Apps脚本文档 ，这表明应该从 var body = doc.getActiveSection（）调用 replaceText 方法。但是，我无法在 getActiveSection 方法=nofollow noreferrer> Document 键入文档。

请帮忙。 thx

解决方案

第一件事就是抓住你的文件夹，这可以通过几种方式来完成。 >

如果您正在为有限的读者编写脚本，并且只使用特定的文件夹，则可以使用DriveApp.getFolderById（id）。当您导航到文件夹时，可以在您的驱动器Web应用程序的网址中找到该ID：

  https：// drive.google.com/a/yourcompany.com/?tab=mo#folders/0B5eEwPQVn6GOaUt6Vm1GVjZmSTQ 
  

一次你有这个ID，你可以简单地在你引用的答案中使用相同的代码，迭代该文件夹的文件迭代器，例如：

  function myFunction（）{
 var files = DriveApp.getFolderById（0B5eEwPQVn6GOaUt6Vm1GVjZmSTQ）。getFiles（）; 
 while（files.hasNext（））{
 var file = files.next（）; 
 Logger.log（file.getName（））; 
 var doc = DocumentApp.openById（file.getId（））; 
 doc.replaceText（我的搜索字符串或正则表达式，我的替换字符串）; 
 
 Logger.log（完成）
} 
  

如果您只知道文件夹的名称，则可以使用DriveApp.getFoldersByName（name）来返回文件夹迭代器。如果你知道你只有一个这个名字的文件夹，那么你只需要在迭代器中获得第一个也是唯一的元素就可以了：

  function myFunction（）{
 var folders = DriveApp.getFoldersByName（myfoldername）; 
 var myFolder = null; 
 if（folders.hasNext（））
 myFolder = folders.next（）; 
 if（myFolder！== null）{
 // do stuff 
} else {
 //正常退出
} 
 
Could you post a Snippet that does find & replace across all files within a folder please? 

I did find something similar, 
Google Scripts - Find and Replace Function that searches multiple documents

but that one search in every file in Google Drive, not within a folder. Since I'm only learning Google Apps Script by example now, I can't make that tiny step myself.

EDIT: Further on the replacing part. 

The DocumentApp.openById returns a type of Document right?

However, I can't find the replaceText method in the Document type doc:
https://developers.google.com/apps-script/reference/document/document

Fine, I then dig deeper, and found another example, 
Google Apps Script document not accessible by replaceText(), which indicates that the replaceText method should be invoked from var body = doc.getActiveSection(). However, I can't find the getActiveSection method in the Document type doc either. 

Please help. thx
解决方案
The first thing is to get a hold of your folder, this can be done in a few ways.

If you are writing a script for a limited audience, and you are working with only a particular folder you can use DriveApp.getFolderById(id).  The id can be found in the url of your drive web app when you navigate to a folder as such:
https://drive.google.com/a/yourcompany.com/?tab=mo#folders/0B5eEwPQVn6GOaUt6Vm1GVjZmSTQ
Once you have that id, you can simply using the same code in the answer you reference, iterate through the file iterator for that particular folder as such:
function myFunction() {
  var files = DriveApp.getFolderById("0B5eEwPQVn6GOaUt6Vm1GVjZmSTQ").getFiles();
  while (files.hasNext()) {
    var file = files.next();
    Logger.log(file.getName());
    var doc = DocumentApp.openById(file.getId());
   doc.replaceText("My search string or regex", "My replacement string");
 }
 Logger.log("Done")
}
Alternative way of getting the folder if you only know its name are the use of DriveApp.getFoldersByName(name) which returns a folder iterator.  If you know you have only one folder of that name, then you need to simply get the first and only element in the iterator as such:
function myFunction() {
  var folders = DriveApp.getFoldersByName("myfoldername");
  var myFolder = null;
  if (folders.hasNext())
    myFolder = folders.next();
  if (myFolder !== null) {
    // do stuff
  } else {
    // exit gracefully
  }
Further if you have multiple folders with the same name, you would have to iterate through them in a while loop (similar to the file iterator in the code you linked) and find a marker that proves this is the folder you are looking for (i.e. you could have an empty file with a particular name in there)

                        
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