使用Google Apps脚本，如何检查电子邮件是否附有pdf，然后转发到另一个电子邮件地址？ [英] Using Google Apps script, how to check if an email has a pdf attached to it, then forward it to another email address?

问题描述

我设法创建了一个将电子邮件转换为pdf的函数，然后将其转发到另一个电子邮件地址（我使用了由Mike Greiling制作的这个伟大的库： https://github.com/pixelcog/gmail-to-pdf ）。

但是现在我想创建另一个函数来检查电子邮件是否已经有附件，然后立即转发它。

这是我的工作函数：

  function saveExpenses（）{
 
 GmailUtils.processStarred（'label：test'，5，function（message）{
 
 //创建消息的PDF 
 var pdf = GmailUtils.messageToPdf（消息）; 
 
 //在文件名前添加日期字符串
 pdf.setName（GmailUtils.formatDate（message，'yyyy / MM / dd  - '）+ pdf.getName（））; 
 
 //将确认电子邮件发送给原始发件人
 var confirmationEmail = message.getFrom（）; 
 
 / /获取要用作电子邮件主题行的文档名称。 
 var subject = pdf.getName（）; 
 
 var body =这是确认已收到此收据; 
 
 //发送一封确认电子邮件给发件人
 GmailApp.sendEmail（confirmationEmail，subject，body，{attachments：[pdf]}）; 
 
返回true; 
 
}）; 
} 
} 
  

解决方案

好的，我找到了解决方案，其实很简单。
我想我没有足够的想法，所以基本上我只是通过函数 getAttachments 获取消息中的所有附件，该函数返回一个<$ c $的数组然后我只是检查数组的长度是否大于0（这意味着电子邮件中有附件）
，如果结果为0，则意味着存在

这是我做的： = message.getAttachments（）;

if（attachment.length> 0）{
//我添加代码来处理附件

} else if（attachment.length == 0）{
//我添加了我在
上面的问题中发布的代码}

I managed to create a function that converts an email to a pdf and then it forwards it to another email address ( I used this great library made by Mike Greiling :https://github.com/pixelcog/gmail-to-pdf).

but now I want to create another function that checks if the email already has an attachment, and then forward it right away.

here's my working function:

function saveExpenses() {

    GmailUtils.processStarred( 'label: test', 5, function(message) {

    // create a pdf of the message
    var pdf = GmailUtils.messageToPdf(message);

    // prefix the pdf filename with a date string
    pdf.setName(GmailUtils.formatDate(message, 'yyyy/MM/dd - ') + pdf.getName());   

     // send confirmation email to the original sender 
     var confirmationEmail = message.getFrom();

     // Get the name of the document to use as an email subject line.
     var subject =  pdf.getName();

     var body = "This is a confirmation that this receipt has been sent";

     // Send a confirmation email to the sender
     GmailApp.sendEmail(confirmationEmail, subject, body,  {attachments: [pdf]});

    return true;

  });
 }
} 

解决方案

Ok, I found the solution, actually it was pretty easy. I guess I didn't think enough, so basically I just get all the attachments from the message with the function getAttachmentswhich returns an array of attachments, I then just check if the length of the array is greater than 0 ( which means there are attachments in the email ) and if the result is 0, it means there are no attachments.

Here is what I did :

var attachment = message.getAttachments();

    if (attachment.length > 0 ) {
          // I add the code to deal with the attachment

    } else if  (attachment.length == 0 ) {
          // I add the code that I posted in the question above
    }

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