Speed up your developments with Symfony2

Speed Up YourDevelopmentswith Symfony2

Hugo Hamon
Trainings Manager
hhamon on Twitter
International speaker

Builtaroundstandalone and decoupled components…

… and a full-stackframeworkbased on those components

Application bundles
Third party bundles
The Symfony2 stack
Bridges
Third party libraries
Core Bundles
Standalone Components

« A Bundleis a directory that has a well-defined structure and can host anythingfrom classes to controllers and web resources. »

Whatmakes Symfony2 unique?

Symfony2 follows standards
& best practices
RFC2616
PHPUnit
Jinja Templates
Design Patterns

Symfonyisnoweasier
to install and configure
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 configuration

Web configuration
Configure the databaseaccessparameters

Start to use Symfony2and happy coding

Want to giveit a try?

Symfony2 Philosophy
« Basically, Symfony2 asksyou to convert a Requestinto a Response »

Request Handling
classDefaultControllerextends Controller
{
/**
* @Route("/hello/{name}")
*/
public functionindexAction($name)
{
// ... do things
returnnewResponse(sprintf('Hello %s!', $name));
}
}

RequestHandling
{
/**
* @Route("/hello/{name}")
*/
public functionindexAction($name)
{
// ... do things
return $this->render(
'SensioHelloBundle:Default:index.html.twig',
array('name'=> $name)
);
}
}

RequestHandling
{
/**
* @Route("/schedule")
*@Template()
*/
public functionindexAction()
{
$title='ConferencesSchedule';
returnarray('title'=> $title);
}
}
Template vars

ViewRendering
{%extends"SensioConferenceBundle::layout.html.twig"%}
{%blockcontent%}
<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
Twigis a modern templateengine for PHP
Fast
Concise and richsyntax
Automatic output escaping
Modern features
Extensible
Flexible

Template inheritance
{%extends"SensioConferenceBundle::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%}
index.html.twig

{%extends"::base.html.twig"%}
{%blockbody%}
<imgsrc="/images/logo.gif" alt="Confoo 2011"/>
{%blockcontent%}{%endblock%}
{%endblock%}
layout.html.twig

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=utf-8" />
<title>
{%blocktitle%}Welcome!{%endblock%}
</title>
<link rel="shortcut icon"
href="{{asset('favicon.ico') }}" />
</head>
<body>
{%blockbody%}{%endblock%}
</body>
</html>
base.html.twig

base.html.twig
layout.html.twig
index.html.twig

Smart URIs

Smart URIs
Native routingmechanism
Bidirectional
Parametersconstraints support

{
/**
* @Route(
* "/{year}/talk/{month}/{day}/{slug}",
* requirements={
* "year"="d{4}",
* "month"="d{2}",
* "day"="d{2}"
* }
* )
* @Template()
*/
public functionshowAction($slug, $day, $month, $year)
{
// ...
}
}

Doctrine ParameterConverter
Convertsrequestsparameters to a Doctrine entity.
{
/**
* @Route("/talk/{id}")
* @ParamConverter("talk", class="SensioConferenceBundle:Talk")
* @Template()
*/
public functionshowAction(Talk $talk)
{
returnarray('talk'=> $talk);
}
}

Easy
Debugging
http://www.flickr.com/photos/artelaphe/

The Web DebugToolbar
Memory
Queries
Recorded logs
Timers
Currentenvironment
Currentresponse
Symfony2 version
PHP environment

The Profiler Application

Exception Stack Trace

Recorded Logs

http://www.flickr.com/photos/chanceprojects/

Doctrine2 Support
Database Abstraction Layer on top of PDO
Object Relational Mapper
Migrations support
Object Document Mapper (MongoDB)
Object XML Mapper (XML databases)

Data Mapper Implementation
/**
* @ORMEntity()
*/
class Talk
{
/**
* @ORMId()
* @ORMGeneratedValue()
* @ORMColumn(type="integer")
*/
private$id;
/** @ORMColumn(length=80) */
private $title;
/** @ORMColumn(type="text") */
private $synopsis;
/** @ORMColumn(type="datetime") */
private $schedule;
/** @ORMManyToMany(targetEntity="Speaker", mappedBy="talks") */
private $speakers;
}

Validation

Validation Framework
ValidatePOPOs (properties & methods)
Easy configuration with annotations
Easy to customize and extend

namespaceSensioBundleTodoBundleEntity;
classTask
{
private$name;
private $dueDate;
public functiongetName() {
return $this->name;
}
public functionsetName($name) {
$this->name = $name;
}
public functiongetDueDate() {
return $this->dueDate;
}
public functionsetDueDate(DateTime $dueDate=null) {
$this->dueDate= $dueDate;
}
}

namespaceSensioBundleTodoBundleEntity;
useSymfonyComponentValidatorConstraintsasAssert;
classTask
{
/**
* @AssertNotBlank()
* @AssertMinLength(5)
* @AssertMaxLength(30)
*/
private $name;
/**
* @AssertNotBlank()
* @AssertType()
* @AssertMaxLength(30)
*/
private $dueDate;
// ...
}

Forms Management
http://www.flickr.com/photos/miahz/

Forms Management
Transparent layer on top of yourdomainobject
Native CSRF protection
Coupled to the Validation framework
Twigintegration

namespaceSensioBundleTodoBundleForm;
useSymfonyComponentFormAbstractType;
useSymfonyComponentFormFormBuilder;
classTaskTypeextendsAbstractType
{
public functionbuildForm(FormBuilder $builder, array $options)
{
$builder->add('name');
$builder->add('dueDate', 'date');
}
public functiongetName()
{
return'task';
}
}

useSensioBundleTodoBundleEntityTask;
useSensioBundleTodoBundleFormTaskType;
public functionnewAction()
{
$task =newTask();
$task->setName('Write a blog post');
$task->setDueDate(new DateTime('tomorrow'));
$request = $this->getRequest();
$form = $this->createForm(newTaskType(), $task);
if ($request->getMethod() =='POST') {
$form->bindRequest($request);
if ($form->isValid()) {
// save the task to the database...
return $this->redirect($this->generateUrl('success'));
}
}
}

Prototyping
{%extends'SensioTodoBundle::layout.html.twig'%}
{%blockcontent%}
<form action="#" method="post">
{{form_widget(form) }}
<input type="submit" value="Send!" />
</form>
{%endblock%}

FunctionalTesting
http://www.flickr.com/photos/kenstein/

FunctionalTesting
Simulating an end-user browsing
Crawling API for links & forms
Testinginternalobjects
Testing the response

FunctionalTesting
classDefaultControllerTestextendsWebTestCase
{
public functiontestIndex()
{
$client =static::createClient();
$crawler = $client->request('GET', '/schedule');
$this->assertTrue(
$crawler->filter('html:contains("Fabien")')->count() >0
);
$response = $client->getResponse();
$this->assertTrue($response->headers->has('expires'));
}
}

HTTP Compliance (RFC2616)

Expiration / Validation

Expiration – Expires Header Field
{
/**
* @Template
* @Cache(expires="tomorrow")
*/
{
}
}

Expiration – Cache-Control Header Field
{
/**
* @Template
* @Cache(maxage="20")
*/
{
}
}

Native PHP Reverse Proxy Cache

Varnish / Squid

http://varnish-cache.org

EdgeSideIncludes
<esi:includesrc="http://..." />

EdgeSideIncludes Support
No ESI

EdgeSideIncludes Support
With ESI
<esi:include … />

Interactive
Code Generators

$ phpapp/console generate:bundle

$ phpapp/console generate:doctrine:crud

http://www.flickr.com/photos/bwop/

<?xml version="1.0"?>
<xliff version="1.2"
xmlns="urn:oasis:names:tc:xliff:document:1.2">
<file source-language="en"
datatype="plaintext"
original="file.ext">
<body>
<trans-unit id="1">
<source>Symfony2 isgreat</source>
<target>J'aime Symfony2</target>
</trans-unit>
<trans-unit id="2">
<source>My name is %name%!</source>
<target>Je m'appelle %name% !</target>
</trans-unit>
</body>
</file>
</xliff>

Translating Messages FromTwig
{%setmessage = 'Symfony2 isgreat'%}
{{message|trans}}
{%setmessage = 'Mynameis %name%!'%}
{{message|trans({'%name%': 'Hugo'}, "hello") }}

http://www.flickr.com/photos/cstein96/

Roadmap for 2.1?
http://www.flickr.com/photos/mkrigsman/

Thank You!

http://symfony-friends.blogspot.com	71
http://paper.li	23
http://www.sfexception.com	15
http://www.techgig.com	11
http://symfony-gu.ru	10
http://symfony-friends.blogspot.be	8
http://twitter.com	7
http://symfony-friends.blogspot.fr	3
http://guru-dev.com	2
https://twitter.com	2

Speed up your developments with Symfony2

by Hugo Hamon

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