Микрофреймворк Silex. Берем в дорогу только необходимое

Transcript

1. Silex Берем только необходимое Дубина Владимир Speroteck Twitter: vovikha Gmail: vovikha@gmail.com
2. Background Experience  7 Years with PHP  5 Years with Zend Framework  3 Years with Magento  3 Years as Team Lead Interests  Virtual environment. (Vagrant, LXC Containers, Chef)  Continuous Integration. (Jenkins, Behat, Functional testing)  Agile. (Code review, Tests, Pair programming)  Building Software. (Phing, Composer)
3. Insights  We produce less new code for sale  Mostly integration issues  Less Code – Less Bugs
4. Complexity
5. Complexity
6. Frameworks and Libraries “A library is essentially a set of functions that you can call, these days usually organized into classes.” “A framework embodies some abstract design, with more behavior built in. In order to use it you need to insert your behavior into various places in the framework either by subclassing or by plugging in your own classes. The framework's code then calls your code at these points.” Martin Fowler http://martinfowler.com/bliki/InversionOfContr ol.html
7. Frameworks by Igor Wiedler Conventions  Codding standard  Directory layout  Community Libraries  Solved problems  Reusable code Wiring  Base Config  Library glue  Bootstrap
8. Micro Frameworks Conventions  Codding standard  Directory layout  Community Libraries  Solved problems  Reusable code Wiring  Base Config  Library glue  Bootstrap
9. Micro frameworks “Use Silex if you are comfortable with making all of your own architecture decisions and full stack Symfony2 if not.” Dustin Whittle
10. Silex overview
11. Silex overview
12. Silex overview
13. Silex is largest micro framework in the world  16831 NCLOC in 280 classes  4018 NCLOC for “Hello World” application Dependencies  pimple/pimple  psr/log  symfony/debug  symfony/event-dispatcher  symfony/http-kernel  symfony/http-foundation  symfony/routing
14. Glorified Router <?php ... $app = new \Silex\Application(); $app->get('/hello/{name}', function($name) use ($app) { return 'Hello ' . $name; }); $app->run();
15. Dependency Injection Container Pimple - simple Dependency Injection Container for PHP 5.3 50 lines of code!
16. Pimple. Lazy loading. <?php require_once 'vendor/autoload.php'; class Service { public function __construct() { echo __CLASS__; } } $c = new \Pimple(); $c['service'] = function () { return new Service(); }; $service = $c['service'];
17. Pimple. Lazy loading.
18. Pimple. Dependency Injection. <?php $container['session_storage_class'] = 'SessionStorage'; $container['session_storage'] = function ($c) { return new $c['session_storage_class']($c['cookie_name']); }; $container['session_storage']();
19. Pimple. Singletons <?php $app['service'] = $app->share(function () { return new Service(); }); // Pimple. Share services. public static function share($callable) { return function ($c) use ($callable) { static $object; if (null === $object) { $object = $callable($c) } return $object; } }
20. Restful application with Silex Requirements:  QA can create/view/edit/delete Project  QA can create/view/edit/delete User Stories for Project  QA can create/view/edit/delete Test Cases for User Story
21. Codding horror
22. Init Application # Init Repository $ git init # Add Some documentation $ echo Reqman 'Application' > README.md $ composer init # Answer questions and define Reqman application # Require Silex micro framework $ composer require silex/silex # Init Endpoint $ mkdir web && cd touch api.php
23. Endpoint <?php // web/api.php require_once __DIR__.'/../vendor/autoload.php'; $app = new \Silex\Application(); $app['debug'] = true; // Turn on errors $app->get('/', function() use($app) { return "Home Page"; }); $app->run();
24. Restful Routes <?php // web/api.php ... $app->get("/project", function() use ($app) { return $app->json( array( array(‘name’ => ‘Project1’) ) ); }); $app->run(); // /api.php/project/ => [{‘name’ => ‘Project1’}]
25. Restful Routes $app->get(‘/project’, function () { ... }); // View all $app->get(‘/project/{id}’, function () { ... }); // View one $app->post(‘/project’, function (Request $request) { ... }); // Create one $app->put(‘/project/{id}’, function (Request $request) { ... }); // Update one $app->delete(‘/project/{id}’, function (Request $request) { ... }); // Delete one
26. Database $app->register(new \Silex\Provider\DoctrineServiceProvider(), array( 'db.options' => array( 'driver' => 'pdo_mysql', 'dbname' => 'reqman', 'host' => 'localhost', 'user' => 'root', 'password' => '' ), )); /** @var \Doctrine\DBAL\Connection $dbAdapter */ $dbAdapter = $app['db'];
27. Provider Interface Class MyServiceProvider implements ServiceProviderInterface { public function register(Application $app) { $app['service'] = $app->share(function () use ($app) { $service = new Service(); $service->setName($app[’name']); return $service }); } }
28. Organizing Controllers $app->mount( '/project', new \Reqman\ProjectBundle\Controller\ProjectController() ); // Interface for custom controllers interface ControllerProviderInterface { public function connect(Application $app); }
29. Project Controller <?php class ProjectController implements ControllerProviderInterface { public function connect(Application $app) { $controller = $app['controllers_factory']; $controller->get("/", function() use ($app) { $dbAdapter = $app['db']; $sql = "SELECT * FROM `project`"; $result = $dbAdapter->fetchAll($sql); return $app->json($result); }); } }
30. Project Controller <?php class ProjectController implements ControllerProviderInterface { public function connect(Application $app) { $controller = $app['controllers_factory']; $controller->post("/", function(Request $request) use ($app) { $dbAdapter = $app['db']; $params = $request->request->all(); $dbAdapter->insert('project', $params); return $app->json("", 201); }); } }
31. Debug
32. Testing # Add testing framework $ composer require --dev behat/behat # Unfortunately we need much more dependencies "require-dev":{ "symfony/browser-kit" : "2.1.*", "behat/behat": "*", "behat/mink": "*", "behat/mink-extension": "*", "behat/mink-goutte-driver": "*", "behat/mink-selenium2-driver": "*", "behat/mink-browserkit-driver": "*", "behat/common-contexts": "*", "kriswallsmith/buzz": "*", "phpunit/phpunit": "*", "phpunit/dbunit": "*" }
33. Migrations # Add Migration library $ composer require --dev knplabs/migration-service-provider $ composer require --dev knplabs/console-service-provider class ProjectMigration extends AbstractMigration { public function schemaUp(Schema $schema) { $projectTable = $schema->createTable('project'); $projectTable->addColumn('id', 'integer', array( 'unsigned' => true, 'autoincrement' => true )); $projectTable->addColumn('name', 'string'); $projectTable->setPrimaryKey(array('id')); } }
34. Behat for API testing # Add extra contexts to test Restful Api $ composer require --dev behat/common-contexts Feature: Project As a QA I should be able to manage projects Scenario: List of projects When I send a GET request to "/project/" Then the response code should be 200 And response should contain json: """ [ {"id": “1", "name": "project 1”}, {"id": “2", "name": "project 2”} ] """
35. Behat and fixtures # Add own context in behat.yml default: context: class: FeatureContext <?php // Customize context to load data fixtures right before tests class FeatureContext extends BehatContext { /** @BeforeScenario */ public function before($event) { //load data into database } /** @AfterScenario */ public function after($event) { // clean data } ?>
36. Fixtures # PHPUnit_Extensions_Database # PHPUnit_Extensions_Database_DefaultTester $data = new \PHPUnit_Extensions_Database_DataSet_YamlDataSet( dirname(__FILE__) . "fixtures/data.yml"); // fixtures/data.yml project: - id: 1 name: project 1 - id: 2 name: project 2 # Bug with foreign keys in innodb. Solution is to rewrite: # PHPUnit_Extensions_Database_Operation_Truncate
37. Continuous Integration with Travis $ touch .travis.yml $ cat .travis.xml language: php php: - 5.3 env: - DB=mysql before_script: # Install apache and configure host ... # Install packages - composer self-update && composer install –dev # Apply migrations - mysql -e 'create database test_reqman;' - php console.php knp:migration:migrate script: - ./bin/behat
38. Thank you Questions