New Twiddle

adapters.application.js

import JSONAPIAdapter from 'ember-data/adapters/json-api';

export default JSONAPIAdapter.extend({
	coalesceFindRequests: true,
  
  groupRecordsForFindMany(store, snapshots) {
    console.log('groupRecordsForFindMany', snapshots.mapBy('include'), snapshots);
  	return this._super(...arguments);
  },
  
  buildQuery(snapshot) {
    console.log('buildQuery', snapshot.include, snapshot);
  	return this._super(...arguments);
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

models.my-model.js

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

export default Model.extend({
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  load(id) {
  	return this.store.findRecord('my-model', id, {
      include: 'someRelationship'
    });
  },
  
  model() {
   	return this.load(1) // has an include parameter
      .finally(() => {
      	const ids = [1, 2];
      	return Ember.RSVP.Promise.all(
          ids.map(id => this.load(id)) // has no include parameter
        );
    	});
  }
});

templates.application.hbs

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