Build powerfull and smart web applications with Symfony2

Build smart and powerful web
applications with Symfony2

Built around standalone and
decoupled components…

… and a full-stack framework based
on those components

Application bundles Third party bundles

The Symfony2 stack

Core Bundles Third party libraries

Standalone Components

« A Bundle is a directory that has a well-de ned
structure and can host anything from classes to
controllers and web resources. »

Symfony2 follows standards
& best practices

-  RFC2616
-  PHPUnit
-  Jinja Templates
-  Design Patterns

Symfony is now easier
to install and con gure

http://symfony.com/download

Several distributions available
Download the Standard Edition that hosts the
framework, standard bundles and a default application
architecture.

Easy installation and con guration

Web con guration

Con gure the database access parameters

Start to use Symfony2 and happy coding J

Symfony2 Philosophy

« Basically, Symfony2 asks you to
convert a Request into a Response »

Request handling

class DefaultController extends Controller
{
/**
* @extra:Route("/hello/{name}")
*/
public function indexAction($name)
{
// ... do things

return new Response(sprintf('Hello %s!', $name));
}
}

Request handling

{
/**
* @extra:Route("/hello/{name}")
*/
public function indexAction($name)
{
// ... do things

return $this->render('HelloBundle:Default:index.html.twig',
array('name' => $name));
}
}

Request handling

{
/**
* @extra:Route("/schedule")
* @extra:Template
*/
public function indexAction()
{
$title = 'Confoo 2011 Conferences Schedule';

return array('title' => $title);
}
}

Templating
{% extends "ConfooConferenceBundle::layout.html.twig" %}

{% block content %}

<h1> {{ title }} </h1>

<ul>
<li>Caching on the Edge, by Fabien Potencier</li>
<li>HipHop for PHP, by Scott Mac Vicar</li>
<li>XDebug, by Derick Rethans</li>
<li>...</li>
</ul>

{% endblock %}

TWIG Template Engine
Twig is a modern template engine for PHP

§  Fast
§  Concise and rich syntax
§  Automatic output escaping
§  Modern features
§  Extensible
§  Flexible

Template inheritance
{% extends "ConfooConferenceBundle::layout.html.twig" %}

{% block content %}

<h1> {{ title }} </h1>

<ul>
<li>Caching on the Edge, by Fabien Potencier</li>
<li>HipHop for PHP, by Scott Mac Vicar</li>
<li>XDebug, by Derick Rethans</li>
<li>...</li>
</ul>

{% endblock %}


{% extends "::base.html.twig" %}

{% block body %}

<img src="/images/logo.gif" alt="Confoo 2011"/>

{% block content %}{% endblock %}

{% endblock %}


<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=utf-8" />

<title>{% block title %}Welcome!{% endblock %}</title>

<link rel="shortcut icon" href="{{ asset('favicon.ico') }}" />
</head>
<body>
{% block body %}{% endblock %}
</body>
</html>


base.html.twig
layout.html.twig

index.html.twig

Smart URIs

Typical PHP URIs suck!!!

Smart URIs

Native routing mechanism

Smart URIs
{
/**
* @extra:Route("/{year}/talk/{month}/{day}/{slug}")
* @extra:Template
*/
public function showAction($slug, $day, $month, $year)
{
// Get a talk object from the database
$talk = ...;

return array('talk' => $talk);
}
}

Parameter converter

{
/**
* @extra:Route("/talk/{id}")
* @extra:Template
*/
public function showAction(Talk $talk)
{
return array('talk' => $talk);
}
}

The Web Debug Toolbar

Symfony2 version environment environment
PHP Current Current response RecordedTimers Memory
logs Queries

Doctrine 2 Library

§  Database Abstraction Layer on top of PDO
§  Object Relational Mapper
§  Migrations support
§  Object Document Mapper (MongoDB)
§  Object XML Mapper (XML databases)

De ning entities as POPO
/**
* @orm:Entity
*/
class Talk
{
/**
* @orm:Id
* @orm:GeneratedValue
* @orm:Column(type="integer")
*/
public $id;

/** @orm:Column(length=80, nullable=false) */
public $title;

/** @orm:Column(type="text") */
public $synopsis;

/** @orm:Column(type="datetime") */
public $schedule;

/** @orm:ManyToMany(targetEntity="Speaker", mappedBy="talks") */
public $speakers;
}

Validation

§  Validate POPOs (properties & methods)

§  Easy con guration with annotations

§  Easy to customize and extend

Validating Plain PHP Objects

class ContactRequest
{
/** @validation:NotBlank */
public $message;

/**
* @validation:Email
* @validation:NotBlank
*/
public $sender;
}
}

Forms management

§  Transparent layer on top of your domain object

§  Native CSRF protection

§  Coupled to the Validation framework

§  Twig integration

Designing a basic form class

namespace ConfooContactBundleForm;

use SymfonyComponentFormForm;
use SymfonyComponentFormTextField;
use SymfonyComponentFormTextareaField;
use SymfonyComponentFormCheckboxField;

class ContactForm extends Form
{
protected function configure()
{
$this->add(new TextField('sender')));
$this->add(new TextareaField('message'));
}
}

Processing a form
public function contactAction()
{
$contactRequest = new ContactRequest();

$form = ContactForm::create(...);

$form->bind($this->get('request'), $contactRequest);

if ($form->isValid()) {

// do things with validated data
}

return array('form' => $form);
}

Prototyping the rendering with Twig

{% extends 'ConfooContactBundle::layout.html.twig' %}

{% block content %}

<form action="#" method="post">

{{ form_field(form) }}

<input type="submit" value="Send!" />

</form>

{% endblock %}

Functional testing

Simulating an end-user browsing
scenario and testing the Response

Functional Testing

class DefaultControllerTest extends WebTestCase
{
public function testIndex()
{
$client = $this->createClient();

$crawler = $client->request('GET', '/schedule');

$this->assertTrue(
$crawler->filter('html:contains("Fabien Potencier")')->count() > 0
);

$this->assertTrue($client->getResponse()->headers->has('expires'));
}
}

Expiration with Expires

{
/**
* @extra:Template
* @extra:Cache(expires="tomorrow")
*/
{

}
}

Expiration with Cache-Control

{
/**
* @extra:Template
* @extra:Cache(maxage="20", s-maxage="20")
*/
{

}
}

Native PHP Reverse Proxy Cache

Edge Side Includes

<esi:include src="http://..." />

Security
Authentication & Authorization

Build powerfull and smart web applications with Symfony2

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (20)

Similar to Build powerfull and smart web applications with Symfony2

Similar to Build powerfull and smart web applications with Symfony2 (20)

More from Hugo Hamon

More from Hugo Hamon (8)

Recently uploaded

Recently uploaded (20)

Build powerfull and smart web applications with Symfony2