Can hook beforeUpdate/afterUpdate modify the value?

Question

I have model call "point", I want to update field "updated" on point in every action update. So, I make hook boforeUpdate to modify updated with new Date(). In result callback is true, and updated fied is a new datetime. But not updated on db, the field still old datetime. My code:

var app = require('../../../server.js'),
point = app.models.point;

point.beforeUpdate = function(next) {
  var app = this;
  app.updated = new Date();
  next();
}

What method do you call to update the instance? save, updateAttributes? — Raymond Feng, Jul 07 '14 at 21:14
I use "Postman" (chrome-extension) to PUT point/:id and create beforeUpdate hook in my point model. — allfix, Jul 08 '14 at 08:47

score 1 · Answer 1 · answered Nov 20 '14 at 09:17

beforeUpdate callback takes two parameters: a callback (which is next in your example) and an object (your point instance)

var app = require('../../../server.js'),
point = app.models.point;

point.beforeUpdate = function(next, pt) {
  pt.updated = new Date();
  next();
}

Assuming that your code lies in app/models/point.js it can be simplified to:

module.exports = function(Point) {
  Point.beforeUpdate = function(next, point) {
    point.updated = new Date();
    next();
  }
};

Can hook beforeUpdate/afterUpdate modify the value?

1 Answers1