Model.save override all

app.js

import Ember from 'ember';
import Resolver from 'ember-resolver';
import loadInitializers from 'ember-load-initializers';
import config from './config/environment';
import Model from "ember-data/model";

Model.reopen({
  save(){
  	alert(`Override saving ${this.get('nome')}`);
   	return this._super(...arguments); 
  }
});

var App = Ember.Application.extend({
	modulePrefix: config.modulePrefix,
	podModulePrefix: config.podModulePrefix,
	Resolver: Resolver
});

loadInitializers(App, config.modulePrefix);

export default App;

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  actions: {
    save(){
     	this.get('model').save(); 
    }
  }
});

models.pessoa.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  nome: attr()
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model(){
   	return this.get('store').createRecord('pessoa', {nome: 'João'}); 
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}


{{input value=model.nome}}

<button {{action 'save'}}>Save</button>
<br>
<br>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}