解析AfterSave触发器进入循环

Question

我的后处理程序遇到麻烦。因此，当新用户登录时，它将检查tProfile和sProfile字段是否为空，如果保存，则为用户保存acl，然后使用nodemailer nmp软件包向用户发送电子邮件。但是在保存用户后，服务器会在循环发送电子邮件后继续发送电子邮件，大约发送了64封电子邮件，在此之后Google阻止了登录尝试，我们将不胜感激。我的云代码在下面给出

Parse.Cloud.afterSave(Parse.User, (request) => {
        const user = request.object;
        const t = user.get('tProfile');
        const s = user.get('sProfile');
        if (!t && !s) {
        user.setACL(new Parse.ACL(user));
        user.save(null,{ useMasterKey: true });
        sendWelcomeEmail(user.getUsername(),user.get('type'));
        return;
        }else{
            console.log("Condition Working");
            return;
        }
    });

const sendWelcomeEmail = (userName,type) => {
        var nodemailer = require('nodemailer');
        var transporter = nodemailer.createTransport({
          service: 'gmail',
          auth: {
            user: '[email protected]',
            pass: 'oyhlyk****ocvhaa'
          }
        });
        var mailOptions = {
          from: '[email protected]',
          to: userName,
          subject: 'Welcome to TutorBear',
          text: 'Dear '+type+', thankyou for signing up with us. If you have any questions please contact us at: 01726409161'
        };
        transporter.sendMail(mailOptions,(error, info)=>{
          if (error) {
            console.log(error);
          } else {
           console.log('Email sent: ' + info.response);
          }
        });
    }

Answer 1

如果您尝试在afterSave中保存相同的类对象，它将是递归函数。

您可以使用beforeSave触发器

Parse.Cloud.beforeSave(Parse.User,async(req)=>{
  let userObject = req.object;
  if(userObject.isNew()){
    //Your Logic
  }
});