Question

我有一个随机生成的字符串，我将其设置为数据库表中属性的值。在成功更新我的记录后，我发送一封包含数据库记录中使用的相同令牌的电子邮件。不幸的是，我的then语句中的token参数不包含令牌，而是替换为值1.为什么会发生这种情况并且它是否与promises功能如何工作有关？

这是我的代码中显示的示例控制台日志和SQL更新：

This is the token: 78a4543cdd4cfd9d8c7fbad89aed9f902e07c372
Executing (default): UPDATE `user` SET `reset_password_token`='78a4543cdd4cfd9d8c7fbad89aed9f902e07c372',`reset_password_expires`='2016-04-02 14:46:13',`updatedAt`='2016-04-02 13:46:13' WHERE `email` = 'tester@gmail.com'
Then this token: 1

POST方式：

.post(function(req, res){
        async.waterfall([
        function(done){
            crypto.randomBytes(20, function(err, buf){
                var resetToken = buf.toString('hex');
                done(err, resetToken);
            });
        }, (function(token, done){


            console.log('This is the token: ' + token);


            models.User.update({
                resetPasswordToken: token,
                resetPasswordExpires: Date.now() + 3600000
            }, {
            where: { email: req.body.email }

            }).then(function(token, user, done){


            console.log('Then this token: ' + token);


            var transporter = nodemailer.createTransport(sgTransport(options));

            var mailOptions = {
                from: '"Test Email" <test@mywebsite.com',
                to: 'tester@gmail.com',
                subject: 'Password Rest Confirmation',
                text: 'You are receiving this because you (or someone else) have requested the reset of the password for your account.\n\n' +
                        'Please click on the following link, or paste this into your browser to complete the process:\n\n' +
                        'http://' + req.headers.host + '/reset/' + token + '\n\n' +
                        'If you did not request this, please ignore this email and your password will remain unchanged.\n'
            };

            transporter.sendMail(mailOptions, function(error, info){
                if(error){
                    return console.log(error);
                }
                console.log('Message sent: ' + info.response);

            });
                res.redirect('/');
                //res.redirect('/password-reset-confirmation') Make a confirmation page with information or just send a flash message
            })
        })], function(error){
        if(error){
            console.log(error);
        }
    })  
    });

Answer 1

token收到值1，因为 update()操作会返回受影响的记录数。在这种情况下，更新了一条记录。

JavaScript承诺不在Chain中传递正确的值

1 个答案: