HTTP/1.1 200 OK
Date: Fri, 02 Nov 2012 02:14:17 GMT
Cache-Control: private, max-age=90
Set-Cookie: username=anonymous;
Content-Type: text/html; charset=UTF-8
Hello Hugo!
Response
use Symfony\Component\HttpFoundation\Cookie;
use Symfony\Component\HttpFoundation\Response;
$username = new Cookie('username', $name);
$response = new Response('Hello Hugo!');
$response->setMaxAge(90);
$response->headers->setCookie($username);
$response->send();
Slide 15
Slide 15 text
use Symfony\Component\HttpFoundation\Response;
$response = new Response();
$response->setCharset('UTF-8');
$response->setEtag('abcdef');
$response->headers->set('Content-Type', 'application/json');
if ($response->isNotModified($request)) {
$response->send();
}
$response->setContent('{ "name": "John Doe"}');
$response->setStatusCode(200);
$response->setPublic();
$response->setSharedMaxAge(3600);
$response->prepare($request);
$response->send();
Caching
Slide 16
Slide 16 text
Session Management
use Symfony\Component\HttpFoundation\Session;
$storage = new Storage\Handler\NativeSessionStorage();
$session = new Session\Session($storage);
$session->start();
// Saving data into the session
$session->set('cart', array(1, 2, 3));
$cart = $session->get('cart');
$session->save();
Slide 17
Slide 17 text
2.
Routing
Slide 18
Slide 18 text
Bidirectional Router
Slide 19
Slide 19 text
Router in action
Router
R1
R2
R3
R3
R
Route
/hello/hugo
/home
/about
/hello/{name}
Slide 20
Slide 20 text
Configuring Routes with PHP
use Symfony\Component\Routing\RouteCollection;
use Symfony\Component\Routing\Route;
$routes = new RouteCollection();
$routes->add('post', new Route(
'/blog/{id}/{slug}',
array('controller' => 'BlogController::post'),
array('id' => '\d+')
));
Matching a Route
use Symfony\Component\Routing\Matcher\UrlMatcher;
use Symfony\Component\Routing\RequestContext;
$context = new RequestContext($_SERVER['REQUEST_URI']);
$matcher = new UrlMatcher($routes, $context);
$params = $matcher->match('/blog/42/symfony-2');
Slide 23
Slide 23 text
Generating URLs
use Symfony\Component\Routing\RequestContext;
use Symfony\Component\Routing\Generator\UrlGenerator;
// ...
$context = new RequestContext($_SERVER['REQUEST_URI']);
$generator = new UrlGenerator($routes, $context);
echo $generator->generate('post', array(
'id' => '42',
'slug' => 'symfony-components',
'page' => '2',
));
// Generates /blog/42/symfony-components?page=2
Slide 24
Slide 24 text
The all-in-one Router
$locator = new FileLocator(array(__DIR__.'/config'));
$router = new Router(
new YamlFileLoader($locator),
'routing.yml',
array('cache_dir' => __DIR__.'/cache'),
new RequestContext($_SERVER['REQUEST_URI']),
);
$params = $router->match('/blog/42/symfony');
$url = $router->generate('blog');
Slide 25
Slide 25 text
3.
Http Kernel
Slide 26
Slide 26 text
Kernel in action
Kernel
Response
Request
Where the
magic
happens!
Slide 27
Slide 27 text
Kernel in action
// index.php
use Symfony\Component\HttpFoundation\Request;
$request = Request::createFromGlobals();
$request->overrideGlobals();
$kernel = new DrupalKernel(...);
$response = $kernel->handle($request);
$response->prepare($request);
$response->send();
Slide 28
Slide 28 text
The HttpKernelInterface
namespace Symfony\Component\HttpKernel;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
interface HttpKernelInterface
{
const MASTER_REQUEST = 1;
const SUB_REQUEST = 2;
public function handle(
Request $request,
$type = self::MASTER_REQUEST, $catch = true);
}
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
class LegacyKernel implements HttpKernelInterface
{
public function handle(Request $request, ...)
{
$module = $request->query->get('module');
$action = $request->query->get('action');
require_once 'config.php';
if (!controller_exists($module, $action)) {
$html = render_view('error', '404');
return new Response($html, 404);
}
$html = include_controller($module, $action);
return new Response($html, 200);
}
}
Slide 31
Slide 31 text
Wrapping a legacy application
// index.php
use Symfony\Component\HttpFoundation\Request;
$request = Request::createFromGlobals();
$request->overrideGlobals();
$kernel = new LegacyKernel();
$response = $kernel->handle($request);
$response->prepare($request);
$response->send();
Slide 32
Slide 32 text
4.
Event Dispatcher
Slide 33
Slide 33 text
No content
Slide 34
Slide 34 text
Real World Example
$order = new Order();
$order->add('Cheeseburger', 3);
$order->add('Caesar Salad', 1);
$order->add('Coffee', 4);
$cashier = new Cashier();
$cashier->dispatch($order);
Slide 35
Slide 35 text
public function dispatch(Order $order)
{
if ($order->has('Cheeseburger')) {
$this->cookCheesburger($order->getQty('Cheeseburger'));
}
if ($order->has('Caesar Salad')) {
$this->cookCaesarSalad($order->getQty('Caesar Salad'));
}
if ($order->has('Coffee')) {
$this->cookCoffee($order->getQty('Coffee'));
}
// ...
}
Slide 36
Slide 36 text
No content
Slide 37
Slide 37 text
public function dispatch(Order $order)
{
// ...
if ($order->has('Pizza')) {
$qty = $order->getQty('Pizza');
$this->cookPizza($qty);
}
// ...
}
Slide 38
Slide 38 text
use Symfony\Component\EventDispatcher\EventDispatcher;
$cashier = new EventDispatcher();
$listeners[] = array(new CheesburgerCooker(), 'onMealCook');
$listeners[] = array(new CaesarSaladCooker(), 'onMealCook');
$listeners[] = array(new CoffeeCooker(), 'onMealCook');
$listeners[] = array(new PizzaCooker(), 'onMealCook');
foreach ($listeners as $listener) {
$cashier->addListener('meal.cook', $listener);
}
Using the Event Dispatcher
Slide 39
Slide 39 text
$cashier = new EventDispatcher();
// ...
$order = new Order();
$order->add('Cheeseburger', 3);
$order->add('Caesar Salad', 1);
$order->add('Coffee', 4);
$order->add('Pizza', 1);
$event = new MealEvent($order);
$cashier->dispatch('meal.cook', $event);
Slide 40
Slide 40 text
use Symfony\Component\EventDispatcher\Event;
class MealEvent extends Event
{
public $order;
public function __construct(Order $order)
{
$this->order = $order;
}
}
Designing an event
Slide 41
Slide 41 text
class PizzaCooker
{
public function onMealCook(MealEvent $event)
{
if (!$event->order->has('Pizza')) {
return;
}
$quantity = $event->order->getQuantity('Pizza');
// ... cook the pizza!!!
}
}
Designing a listener (cooker)
abstract class AbstractCommand extends Command
{
// ...
protected function createDirectory($directory)
{
$filesystem = $this->getFilesystem();
try {
$filesystem->mkdir($directory);
} catch (IOException $e) {
throw new \RuntimeException('...', 0, $e);
}
}
}
Example taken from Propel2
Slide 54
Slide 54 text
7.
Finder
Slide 55
Slide 55 text
No content
Slide 56
Slide 56 text
use Symfony\Component\Finder\Finder;
$finder = new Finder();
$finder
->files()
->in(__DIR__.'/src/Symfony/Bundle/FrameworkBundle')
->exclude('Tests')
->ignoreVCS(true)
->name('/Controller/')
;
foreach ($finder->sortByName() as $file) {
echo $file->getFilename()."\n";
}
Using the Finder Component
Slide 57
Slide 57 text
// Filter by name
$finder->directories()->name('Tests');
$finder->files()->name('*.php');
$finder->files()->name('/\.php$/');
$finder->files()->notName('*.rb');
// Filter by size
$finder->files()->size('< 1.5K');
$finder->files()->size('>= 1K')->size('<= 2K');
// Filter by date
$finder->date('since yesterday');
// Limiting the depth
$finder->depth('== 0');
$finder->depth('< 3');
Slide 58
Slide 58 text
$filter = function (\SplFileInfo $file) {
if (strlen($file) > 10) {
return false;
}
};
$finder->files()->filter($filter);
Custom filters
Slide 59
Slide 59 text
class MagentoFinder extends Symfony\Component\Finder\Finder
{
public function __construct()
{
parent::__construct();
$this
->name('*.php')
->name('*.phtml')
->name('*.xml')
->exclude(array(
'lib',
'shell',
'app/Mage.php',
'app/code/core',
'app/code/community',
'app/design/frontend/default',
'app/design/frontend/enterprise/default',
'app/design/frontend/base',
'app/design/adminhtml/default')
)
;
}
}
#!/usr/bin/env php
$loader = require __DIR__.'/vendor/autoload.php';
$loader->add('Hangman', __DIR__.'/src');
use Symfony\Component\Console\Application;
use Acme\Command\HangmanPlayCommand;
$application = new Application();
$application->add(new HangmanPlayCommand());
$application->run();
The Console Script
Slide 65
Slide 65 text
namespace Acme\Command;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
class HangmanPlayCommand extends Command
{
protected function configure() { ... }
protected function execute(
InputInterface $input,
OutputInterface $output
) { ... }
}
Creating a new Command Class
Slide 66
Slide 66 text
protected function configure()
{
$this
->setName('hangman:play')
->setDescription('Play the famous Hangman game')
->addArgument('name', InputArgument::REQUIRED,
'Your name')
->addOption('length', 'l',
InputOption::VALUE_REQUIRED)
->setHelp('The complete manual ...');
}
Documenting the Command
Slide 67
Slide 67 text
protected function execute($input, $output)
{
$words = new WordList();
$words->load(__DIR__.'/../../../data/words.txt');
$length = $input->getOption('length', 8);
$name = $input->getArgument('name');
$game = new Game($words->getRandomWord($length));
// ...
}
Adding the business logic
Slide 68
Slide 68 text
protected function execute($input, $output)
{
// ...
$dialog = $this->getHelperSet()->get('dialog');
$output->writeln('Welcome '.$name.' to the Hangman Game!');
while (!$game->isOver()) {
$letter = $dialog->ask($output, 'Type a letter: ');
$game->tryLetter($letter);
$output->writeLn(implode(' ', $game->getSolution()));
}
if ($game->isWon()) {
$output->writeln('Congratulations!');
} else {
$output->writeln('Game Over!');
}
// ...
}
Slide 69
Slide 69 text
No content
Slide 70
Slide 70 text
Some purposes
Generating les
Deploying les
Dumping con guration
Clearing caches
Generating documentation
Running a web server
Sending batch emails…
Slide 71
Slide 71 text
9.
Translation
Slide 72
Slide 72 text
No content
Slide 73
Slide 73 text
Basic Usage
$selector = new MessageSelector();
$trans = new Translator('fr', $selector);
$trans->setFallbackLocale('en');
$loader = new XliffFileLoader();
$trans->addLoader('xliff', $loader);
$trans->addResource('yaml', '/fr.yml', 'fr');
$trans->trans('Hello %name%', array(
'%name%' => $name
));
Slide 74
Slide 74 text
XLIFF Support
Hello %name%
Bonjour %name%
Slide 75
Slide 75 text
Usage in Behat
class TranslatedLoader implements LoaderInterface
{
private $translator;
// ...
public function load(ContextInterface $context)
{
foreach ($context->getTranslationResources() as $path) {
$extension = pathinfo($path, PATHINFO_EXTENSION);
if ('yml' === $extension) {
$this->translator->addResource(
'yaml', $path, basename($path, '.yml'),
'behat.definitions'
);
}
// ...
}
}
}
Slide 76
Slide 76 text
10.
Dependency Injection
Slide 77
Slide 77 text
What’s dependency injection?
« Dependency Injection is where
components are given their
dependencies through their
constructors, methods, or directly
into elds. »
http://picocontainer.org/injection.html
Slide 78
Slide 78 text
Real World Example
class Database
{
private $dbh;
function __construct(PDO $dbh) {
$this->dbh = $dbh;
}
function execute($query) {
// ...
}
}
Slide 79
Slide 79 text
$container->setParameter('foo', 'bar');
$container->getParameter('dbal.dsn');
$dbal = $container->get('dbal');
The Service Container
Slide 80
Slide 80 text
Real World Example
class Database
{
private $dbh;
function __construct(PDO $dbh) {
$this->dbh = $dbh;
}
function execute($query) {
// ...
}
}
Slide 81
Slide 81 text
Initializing the Container
$container = new ContainerBuilder();
$params = array(
'dbal.dsn' => 'mysql:host=localhost;dbname=demo',
'dbal.user' => 'root',
'dbal.password' => 'secret',
);
foreach ($params as $name => $value) {
$container->setParameter($name, $value);
}
Slide 82
Slide 82 text
Registering a service
$container = new ContainerBuilder();
// ...
$container
->register('dbal.pdo_handler', 'PDO')
->addArgument('%dbal.dsn%')
->addArgument('%dbal.user%')
->addArgument('%dbal.password%')
;
Slide 83
Slide 83 text
Injecting service references
$container = new ContainerBuilder();
// ...
$reference = new Reference('dbal.pdo_handler');
$container
->register('dbal', 'Database')
->addArgument($reference)
;
Slide 84
Slide 84 text
Describing services with XML
mysql:...
root
secret
%dbal.dsn%
%dbal.user%
%dbal.password%
Slide 85
Slide 85 text
Describing services with XML
Slide 86
Slide 86 text
12.
Validator
Slide 87
Slide 87 text
The Validator Component
use Symfony\Component\Validator\Validator;
use Symfony\Component\Validator\Mapping\ClassMetadataFactory;
use Symfony\Component\Validator\Mapping\Loader\StaticMethodLoader;
use Symfony\Component\Validator\ConstraintValidatorFactory;
use Symfony\Component\Validator\Constraints\Email;
$validator = new Validator(
new ClassMetadataFactory(new StaticMethodLoader()),
new ConstraintValidatorFactory()
);
$validator->validateValue('foo@bar.com', new Email());
Slide 88
Slide 88 text
Validating PHP Objects
use Symfony\Component\Validator\Mapping\ClassMetadata;
use Symfony\Component\Validator\Constraints;
class Post
{
public $title;
public $body;
static public function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('title', new Constraints\NotNull());
$metadata->addPropertyConstraint('title', new Constraints\NotBlank());
$metadata->addPropertyConstraint('body', new Constraints\Length(array(
'max' => 10
)));
}
}