两个Date.now（）之间的巨大时间间隔

Question

SITUATION:

I have created a spam time-limit of 1 hour.

When a user posts, the current time Date.now() is saved in user.last .

When he posts again, I get the current time with Date.now() and compare it to user.last .

---

PROBLEM:

The problem is the following:

I post twice in about 1 minute.

The difference of time between the two posts is greater than 1 HOUR according to my the console output of my code.

---

QUESTION:

What have I done wrong ? I did set the env TZ to UTC.

---

CODE:

exports.create = function (req, res) {
  var article = new Article(req.body);
  article.user = req.user;

  console.log("LAST: "+article.user.last.getTime());
  console.log("Date.now(): "+Date.now());

  if (article.user.last.getTime() != null && article.user.last.getTime() != undefined) {
      console.log("DATE DIFFERENCE: "+(Date.now() - article.user.last));
      if ((Date.now() - article.user.last > 1000 * 60 * 60)) {
            article.save(function (err) {
                if (err) {
                  return res.status(422).send({
                    message: errorHandler.getErrorMessage(err)
                  });
                } else {
                    res.json(article);

                    if (article.user) {
                        article.user.last = Date.now();
                        console.log("NEW LAST: "+article.user.last.getTime());
                    } else {
                        res.status(401).send({
                          message: 'User is not signed in'
                        });
                    }
                }
            });
      }
      else {
          return res.status(422).send({
            message: "You need to wait 1 hour between Article creations or if you just created an account."
          });
      }
  }
  else {
      console.log("2");
      article.save(function (err) {
        if (err) {
          return res.status(422).send({
            message: errorHandler.getErrorMessage(err)
          });
        } else {
          res.json(article);

            if (article.user) {
                article.user.last = Date.now();
                console.log("3) LAST: "+article.user.last.getTime());
            } else {
                res.status(401).send({
                  message: 'User is not signed in'
                });
            }
        }
    });
  }
};

---

CONSOLE:

LAST: 1486438249652
Date.now(): 1486515834377
DATE DIFFERENCE: 77584725
NEW LAST: 1486515834394

---

EDIT:

User model

/**
 * User Schema
 */
var UserSchema = new Schema({

  //SOME CODE

  last: {
    type: Date
  },

  //SOME CODE

});

Answer 1

The problem is that the user record isn't actually being saved. Your code saves the Article, and then sets the user's .last property, but at no point is the Mongoose model for the user being saved ( article.user.save() ).

That means .last remains whatever it was when it was first created, and so the logged date difference will increase monotonically.

Here's the important bit:

article.save(function(err) {
  if (err) {
    res.status(422).send({message: errorHandler.getErrorMessage(err)});
  } else {
    if (article.user) {
      article.user.last = Date.now();
      article.user.save(function (err) {
        if (err) res.status(500).send({message: 'Database error'});
        else res.json(article);
      }
    } else {
      res.status(401).send({message: 'User is not signed in'});
    }
  }
});