Setup a callback after a transaction has committed

Question

I'm trying to achieve something that I guess has a simple answer but somehow I can't find it reading the source code of ember-data.

I would like to trigger an action after a particular set of modifications have been committed to the datastore. This my current code:

var transaction = App.store.transaction();
user = App.get('currentUser');
transaction.add(user);
user.set('name', "Michael Jackson");
transaction.commit();
App.navigate('dashboard');

My first attempt was to add an observer over this user's isDirty property, but a) it doesn't seem idiomatic and more importantly b) I would have to remove manually that observer at the end - that's prone to errors if some exception raises in between and doesn't get removed, for instance.

Any ideas? How would you do this?

Answer 1

You can use didCreate and didUpdate on the model. I'm assuming you have a user model so something like:

MyApp.User = DS.Model.extend({
  first: DS.attr('string'),
  page: DS.attr('string'),
  didUpdate: function() {
    //Do something
  },
  didCreate: function() {
    //do something
  }
});