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Silex - Talk is cheap, show me the c̶o̶d̶e̶ pro...
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Jean Pimentel
June 25, 2012
Programming
340
3
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Silex - Talk is cheap, show me the c̶o̶d̶e̶ prototype!
Por que prototipar?
O que são microframeworks?
Silex, microframework PHP.
Como usar o Silex?
Jean Pimentel
June 25, 2012
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Transcript
None
JEAN PIMENTEL Ciência da Computação – UFJF Analista de Sistemas
– Bolt Brasil @jeanpimentel
IDEIAS NÃO VALEM NADA!
Etapas pra produzir sua ideia: 1. Ideia 2. Documentação 3.
Mockups 4. Protótipos 5. Vídeos
POR QUE PROTOTIPAR?
None
"IT'S ONE THING TO TALK ABOUT THEM AND HAVE STORYBOARDS
AND ANOTHER THING TO SEE THEM FOR REAL.“ ROBERT HOEKMAN, JR.
None
POR MELHOR QUE VOCÊ SEJA, SEMPRE COMETERÁ ERROS.
VOCÊ NÃO PRECISA FAZER TUDO, SOMENTE O PRINCIPAL.
TERMINE O PROTÓTIPO EM 1 DIA.
ITERAÇÕES: REESTUDE O PROBLEMA, REPENSE A SOLUÇÃO.
NÃO PERCA TEMPO COM O MELHOR CÓDIGO, ELE É DESCARTÁVEL
E SOFRERÁ MUITAS ALTERAÇÕES.
NÃO PERCA TEMPO COM O MELHOR CÓDIGO, ELE É DESCARTÁVEL
E SOFRERÁ MUITAS ALTERAÇÕES. NÃO PRECISA FUNCIONAR NO IE6, NEM TER UM BOM HTML. PODE ATÉ USAR TABELA.
MICROFRAMEWORK
MICROFRAMEWORK • Esqueleto da aplicação • Controllers (MVC) – Rotas
Ações – Requests Responses • Simples
MICROFRAMEWORK • Ruby Sinatra, Cuba • Python Flask,
Pyramid • PHP Silex, Slim, Flight • Java Napalm
SILEX
SILEX • Não é o Symfony2 • PHP 5.3 •
PSR-0 • PSR-1 (?) • PSR-2 (?) • Conciso, extensível e testável
COMO USAR
1 { 2 "require": { 3 "php": ">=5.3.2", 4 "silex/silex":
"*" 5 } 6 } 1 curl -s http://getcomposer.org/installer | php 2 php composer.phar install composer.json shell
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 8 // SEUS MÉTODOS AQUI 9 10 $app->run(); public/index.php
SERVICE PROVIDERS
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 // SEUS MÉTODOS AQUI 13 14 $app->run();
SERVICES PROVIDERS • Validator • Form • Monolog • Doctrine
• Translation • E você pode fazer o seu. Basta implementar uma interface.
ROUTING
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 $app->get('/posts', function () { 13 $posts = /* Minha query */ 14 15 $output = ''; 16 foreach ($posts as $post) 17 $output .= $post['title'] . '<br />'; 18 19 return $output; 20 }); 21 22 $app->run();
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 $app->get('/posts', function () use ($app) { 13 $posts = /* Minha query */ 14 return $app['twig']->render('blog.twig', array('posts' => $posts)); 15 }); 16 17 $app->run(); 1 {% if posts %} 2 <ul> 3 {% for post in posts %} 4 <li>{{ post.title }}<li> 5 {% endfor %} 6 </ul> 7 {% endif %} UTILIZANDO O TWIG views/blog.twig
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 $app->get('/posts', function () use ($app) { 13 $posts = /* Minha query */ 14 return $app['twig']->render('blog.twig', array('posts' => $posts)); 15 }); 16 17 $app->get('/post/{id}', function ($id) use ($app) { 18 $post = /* Minha query buscando o post */ 19 return $app['twig']->render('post.twig', array('post' => $post)); 20 }) 21 ->assert('id', '\d+'); 22 23 $app->run(); UTILIZANDO PARÂMETROS
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 $app->get('/posts', function () use ($app) { 13 $posts = /* Minha query */ 14 return $app['twig']->render('blog.twig', array('posts' => $posts)); 15 }); 16 17 $app->get('/post/{id}', function ($id) use ($app) { 18 return $app['twig']->render('post.twig', array('post' => $id)); 19 }) 20 ->convert('id', function ($id) { return /* Minha query buscando post */ }); 21 22 $app->run(); CONVERTENDO O PARÂMETRO
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 $postProvider = function ($id) { 13 return /* Minha query buscando post */ 14 }; 15 16 $app->get('/posts', function () use ($app) { 17 $posts = /* Minha query */ 18 return $app['twig']->render('blog.twig', array('posts' => $posts)); 19 }); 20 21 $app->get('/post/{id}', function ($id) use ($app) { 22 return $app['twig']->render('post.twig', array('post' => $id)); 23 }) 24 ->convert('id', $postProvider); 25 26 $app->run(); REUTILIZANDO FUNÇÕES
2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5 6 $app
= new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 $postProvider = function ($id) { 13 return /* Minha query buscando o post */ 14 }; 15 16 $app->get('/posts', function () use ($app) { 17 $posts = /* Minha query */ 18 return $app['twig']->render('blog.twig', array('posts' => $posts)); 19 }); 20 21 $app->get('/post/{id}', function ($id) use ($app) { 22 return $app['twig']->render('post.twig', array('post' => $id)); 23 }) 24 ->convert('id', $postProvider); 25 26 $app->get('/posts/categoria/{categoria}', function ($id) use ($app) { 27 $posts = /* Minha query por posts com categoria X */ 28 return $app['twig']->render('blog.twig', array('posts' => $posts)); 29 }) 30 ->value('categoria', 'php'); 31 32 $app->run(); PARÂMETROS COM VALOR DEFAULT
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 /* ... */ 13 14 $app->get('/contato', function () use ($app) { 15 return $app['twig']->render('contato.twig') 16 }); 17 18 $app->post('/contato', function (Request $request) use ($app) { 19 $contato = array( 20 'nome' => $request->get('nome'), 21 'email' => $request->get('email'), 22 'assunto' => $request->get('assunto'), 23 'mensagem' => $request->get('mensagem'), 24 ); 25 /* Minha query salvando o contato */ 26 return $app['twig']->render('contato-sucesso.twig') 27 }); 28 29 $app->run(); GET, POST, PUT, DELETE OU MATCH
ROUTE MIDDLEWARES
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 /* ... */ 13 14 $mustBeAnonymous = function (Request $request) use ($app) { 15 if ($app['session']->has('user')) 16 return $app->redirect('/logout'); 17 }; 18 19 $app->get('/signup', function () use ($app) { 20 return $app['twig']->render('signup.twig') 21 }) 22 ->before($mustBeAnonymous); 23 24 $app->run(); BEFORE ROUTE
2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5 6 $app
= new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 /* ... */ 13 14 $app->get('/meu-relatorio', function () use ($app) { 15 return $app['twig']->render('signup.twig') 16 }) 17 ->before(function (Request $request) use ($app) { 18 if (!$app['session']->has('user')) 19 return $app->redirect('/login'); 20 }) 21 ->before(function (Request $request) use ($app) { 22 $app['time.start'] = microtime(true) 23 }) 24 ->after(function (Request $request, Response $response) use ($app) { 25 $duracao = microtime(true) - $app['time.start']; 26 /* Minha função pra gravar em logs */ 27 }); 28 29 $app->run(); AFTER ROUTE
APPLICATION FILTERS
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 $app->before(function (Request $request) use ($app) { 13 // set up 14 $request->getSession()->start(); 15 $app['time.start'] = microtime(true); 16 }); 17 18 $app->after(function (Request $request, Response $response) use ($app) { 19 // tear down 20 $app['time.end'] = microtime(true); 21 }); 22 23 $app->finish(function (Request $request, Response $response) use ($app) { 24 // after response has been sent 25 $duracao = $app['time.end'] - $app['time.start']; 26 /* Minha função pra gravar em logs */ 27 }); 28 29 $app->run(); BEFORE, AFTER, FINISH
ERROR CONTROL
1 <?php 2 3 // COMPOSER 4 require_once __DIR__.'/../vendor/autoload.php'; 5
6 $app = new Silex\Application(); 7 $app->register(new Silex\Provider\SessionServiceProvider()); 8 $app->register(new Silex\Provider\TwigServiceProvider(), array( 9 'twig.path' => __DIR__ . '/../views', 10 )); 11 12 /* ... */ 13 14 $app['debug'] = TRUE; 15 16 $app->error(function (\Exception $e, $code) { 17 /* Tratamento da exception */ 18 }); 19 20 $app->error(function (\LogicException $e, $code) { 21 /* Tratamento da exception */ 22 }); 23 24 $app->run();
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