NullVoxPopuli · October 26, 2018 15:09
diff --git a/a-teeny-component.component.js b/a-teeny-component.component.js
 import Ember from 'ember';

 export default Ember.Component.extend({
  // this component only received args from the caller
  // but it does track its own local info property
  
  info: '', // initial form field value
 });
diff --git a/a-teeny-component.template.hbs b/a-teeny-component.template.hbs
 <div class='border'>
 	<span>a-teeny-component -- local info: {{this.info}}</span>
 	{{input value=this.info placeholder='this info is two-way bound locally to the component'}}

 	<button onclick={{action @sendTheForm this.info}}>submit</button>
 </div>

diff --git a/controllers.application.js b/controllers.application.js
 import Ember from 'ember';
 import { computed } from '@ember/object';

 export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  info: '',
  aComplexInfo: {
    nestedData: ''
  },
  
  dataDisplay: computed('aComplexInfo.nestedData', function() {
    return JSON.stringify(this.aComplexInfo);
  }),
  
  actions: {
  	sendTheForm(info) {
      console.log('sendTheForm received', info);
    	this.set('info', info);
    },
    
    updateNestedData(nestedData) {
      console.log('updateNestedData received', nestedData);
      this.set('aComplexInfo.nestedData', nestedData);
    }
  }
 });
diff --git a/helpers.stringify.js b/helpers.stringify.js
 import Ember from 'ember';

 export function stringify(params/*, hash*/) {
  return JSON.stringify(params[0]);
 }

 export default Ember.Helper.helper(stringify);
diff --git a/my-component.component.js b/my-component.component.js
 import Ember from 'ember';

 export default Ember.Component.extend({
  // this component only receives args from the caller
 });
diff --git a/my-component.template.hbs b/my-component.template.hbs
 <div class='border'>

 	<span>my-component - type something into the form below and click submit</span>
  
 	<ATeenyComponent @sendTheForm={{this.sendTheForm}} />
  
 </div>
diff --git a/nested-data-form.component.js b/nested-data-form.component.js
 import Ember from 'ember';

 export default Ember.Component.extend({
  text: ''
 });
diff --git a/nested-data-form.template.hbs b/nested-data-form.template.hbs
 <div class='border'>
 	<span>nested-data-form</span>
 	{{input value=this.text}}

 	<button onclick={{action @onSubmit this.text}}>submit</button>
  
  <br><br>
  Two way bound: <br>
  {{input [email protected]}}
 </div> 

diff --git a/styles.app.css b/styles.app.css
 body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
 }

 .border {
  border: 1px solid;
  padding: 10px;
 }
 span {
  display: block;
  padding-bottom: 10px; 
 }

 input[type='text'] {
  width: 100%; 
 }

 button {
  margin-top: 5px; 
 }
diff --git a/templates.application.hbs b/templates.application.hbs
 <h1>Welcome to {{appName}}</h1>


 Controller's Info: {{this.info}}
 <br><br>
 <MyComponent @sendTheForm={{action 'sendTheForm'}} />

 <br><br>
 Controller's Data: {{this.dataDisplay}}
 <NestedDataForm 
  @data={{this.aComplexInfo}}
 	@onSubmit={{action 'updateNestedData'}} 
 />
diff --git a/twiddle.json b/twiddle.json
 {
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": true,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
 }
	import Ember from 'ember';

	export default Ember.Component.extend({
	// this component only received args from the caller
	// but it does track its own local info property

	info: '', // initial form field value
	});
	<div class='border'>
	<span>a-teeny-component -- local info: {{this.info}}</span>
	{{input value=this.info placeholder='this info is two-way bound locally to the component'}}

	<button onclick={{action @sendTheForm this.info}}>submit</button>
	</div>
	import Ember from 'ember';
	import { computed } from '@ember/object';

	export default Ember.Controller.extend({
	appName: 'Ember Twiddle',

	info: '',
	aComplexInfo: {
	nestedData: ''
	},

	dataDisplay: computed('aComplexInfo.nestedData', function() {
	return JSON.stringify(this.aComplexInfo);
	}),

	actions: {
	sendTheForm(info) {
	console.log('sendTheForm received', info);
	this.set('info', info);
	},

	updateNestedData(nestedData) {
	console.log('updateNestedData received', nestedData);
	this.set('aComplexInfo.nestedData', nestedData);
	}
	}
	});
	import Ember from 'ember';

	export function stringify(params/, hash/) {
	return JSON.stringify(params[0]);
	}

	export default Ember.Helper.helper(stringify);
	import Ember from 'ember';

	export default Ember.Component.extend({
	// this component only receives args from the caller
	});
	<div class='border'>

	<span>my-component - type something into the form below and click submit</span>

	<ATeenyComponent @sendTheForm={{this.sendTheForm}} />

	</div>
	import Ember from 'ember';

	export default Ember.Component.extend({
	text: ''
	});
	<div class='border'>
	<span>nested-data-form</span>
	{{input value=this.text}}

	<button onclick={{action @onSubmit this.text}}>submit</button>

	<br><br>
	Two way bound: <br>
	{{input [email protected]}}
	</div>
	body {
	margin: 12px 16px;
	font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
	font-size: 12pt;
	}

	.border {
	border: 1px solid;
	padding: 10px;
	}
	span {
	display: block;
	padding-bottom: 10px;
	}

	input[type='text'] {
	width: 100%;
	}

	button {
	margin-top: 5px;
	}
	<h1>Welcome to {{appName}}</h1>


	Controller's Info: {{this.info}}
	<br><br>
	<MyComponent @sendTheForm={{action 'sendTheForm'}} />

	<br><br>
	Controller's Data: {{this.dataDisplay}}
	<NestedDataForm
	@data={{this.aComplexInfo}}
	@onSubmit={{action 'updateNestedData'}}
	/>