You want to do something when your record got saved/validations failed.
Usage
user.observeSaveOnce(success: function(){
// go to next page
}, error: function(){
// show validation errors
})
Code
# your model.js
observeSaveOnce: function(options) {
function callback() {
var outcome = 'success';
if (this.get('isDirty')) {
if (this.get('isValid')) return; // not submitted yet
outcome = 'error';
}
(options[outcome] || Ember.K).call(this);
this.removeObserver('isDirty', callback);
this.removeObserver('isValid', callback);
}
this.addObserver('isDirty', callback);
this.addObserver('isValid', callback);
}
Michael Grosser, the Blog 
Hey, great but how would you then proceed to do client side (hook form to a DS.Model) validation?
Sorry, no idea, never needed it 🙂
Hmm, how about, how do you handle client side validation of your records … a gist would be appreciated?
Sorry, lost the code when I switched projects, I think we read the response and showed the text, not sure…
Hmm, thanks … anyway, I get that validation is being worked on in the release. Can’t wait.