schema.pre('save') not triggered by MyModel.update()

example.js:

var mongoose = require('mongoose')
  , Schema = mongoose.Schema

mongoose.connect('mongodb://localhost/test')

var Thing = new Schema({
  title : String,
  content : String
})

Thing.pre('save', function(next){
  console.log("saving: %s (%s)", this.title, this.content)
  next()
})

var MyThing = mongoose.model('Thing', Thing)

var example = new MyThing({
  title : 'foo',
  content : 'bar'
})

example.save(function(err){
  MyThing.update({title:'foo'},{content:'baz'}, function(err, rs){
    console.log(rs)
  })  
})

Output:

$ node example.js 
saving: foo (bar)
1

The pre is triggered by the initial save, but not the update.

[r3wt]

This is fucking bullshit. we can’t do anything async in setters. idiots.

[aheckmann]

This is not a bug. pre save is a hook that fires on instances when their save method is called, not on the model when update is called.

Model.update let’s you send atomic $set operations directly to mongodb.