check-double-save

adapters.application.js

import DS from 'ember-data';

export default DS.JSONAPIAdapter.extend({
	        createRecord(...params) {
            alert('createRecord');
            
            return Ember.RSVP.Promise.resolve({
            	data: {
            		type: 'tournament',
              	id: Date.now(),
                attributes: {
                	title: 'updated world' + (new Date)
                }
            	}
            })
        }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  
  actions: {
  	saveTournament(tournament) {
      alert('save');
    	tournament.save();
    }
  }
});

initializers.model-save-extend.js

import Model from 'ember-data/model';
import Ember from 'ember';

const { inject, computed, isEmpty, RSVP: { Promise } } = Ember;

export function initialize(/* application */) {
    Model.reopen({
      save() {
      	alert('redefined save');
        
        if (this.get('validations.isInvalid')) {
            return Promise.reject('Falid to save');
        }
        
        return this._super();
      }
    });
}

export default {
    name: 'model-save-extend',
    initialize
};

models.tournament.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";
import { validator, buildValidations } from 'ember-cp-validations';


const Validations = buildValidations({
  title: validator('presence', true),
});

export default Model.extend(Validations, {
  
  title: attr('string')
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
  	return this.store.createRecord('tournament', { title: 'hello world' });
  }
});

templates.application.hbs

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

<h2>Tournament</h2>
{{model.title}}
<hr>
is valid: {{model.validations.isValid}}
<br>
<button {{action 'saveTournament' model}} type='button'>save tournament</button>

twiddle.json

{
  "version": "0.11.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.11.0",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.11.0",
    "ember-testing": "2.11.0"
  },
  "addons": {
  	"ember-cp-validations": "3.2.3"
  }
}