Symfony3

Transcript

1. Symfony3 https://flic.kr/p/hxDowj User Group Cologne
2. Freerich Bäthge CEO SensioLabs Deutschland
3. Do you remember symfony1 ? https://flic.kr/p/9p66VL
4. https://flic.kr/p/qpCKyU The Symfony Revolution
5. https://flic.kr/p/6jBHRV DON’T PANIC!
6. Keep the code as stable as possible for as long as possible
7. But stability does not mean status quo
8. Upgrading is very easy because backward compatibility is kept with older versions
9. Challenge is the maintenance of the backward compatibility layer for obsolete or deprecated features
10. New features in
 2.4, 2.5, 2.6, and 2.7
11. All those versions come with major new features
12. Translation Profiler
15. Twig Profiler
18. The Asset component
19. Management of web assets is now decoupled from the Templating component
20. # Symfony 2.6 # app/config/config.yml
 framework:
 templating:
 assets_version: 'v5'
 assets_version_format: '%%s?version=%%s'
 assets_base_urls:
 http: ['http://cdn.example.com']
 ssl: ['https://secure.example.com']
 packages:
 # ...
21. # Symfony 2.7
 # app/config/config.yml
 framework:
 assets:
 version: 'v5'
 version_format: '%%s?version=%%s'
 base_path: ~
 base_urls: - 'http://cdn.example.com' - 'https://sec.example.com'
 packages:
 # ...
22. {# Symfony 2.6 #}
 {{ asset('logo.png', absolute = true) }}
 
 {# Symfony 2.7 #}
 {{ absolute_url(asset('logo.png')) }}
 
 
 {# Symfony 2.6 #}
 {{ asset('logo.png', version = 'v5') }}
 
 {# Symfony 2.7 (do nothing, version is automatically appended) #}
 {{ asset('logo.png') }}
 
 {# use the asset_version() function if you need to output it manually #}
 {{ asset_version('logo.png') }}
23. Deprecated setDefaultOptions() in favor of configureOptions()
24. // Symfony 2.6
 use Symfony\Component\OptionsResolver\OptionsResolverInterface;
 
 class TaskType extends AbstractType
 {
 // ...
 public function setDefaultOptions(OptionsResolverInterface $resolver)
 {
 $resolver->setDefaults(array(
 'data_class' => 'AppBundle\Entity\Task',
 ));
 }
 }
25. // Symfony 2.7
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 class TaskType extends AbstractType
 {
 // ...
 public function configureOptions(OptionsResolver $resolver)
 {
 $resolver->setDefaults(array(
 'data_class' => 'AppBundle\Entity\Task',
 ));
 }
 }
26. String representation for core users
27. In order to to use type casting such as (string) $user and {{ user }} in Twig templates
28. // src/Symfony/Component/Security/Core/User/User.php
 
 public function __toString()
 {
 return $this->getUsername();
 }
29. Symfony 2.7 introduces a new command called security:encode-password
30. php app/console security:encode-password 'plain_password''AppBundle\Entity\User'
31. Symfony 2.7 add a new getParameter() method in the base controller class
32. use Symfony\Bundle\FrameworkBundle\Controller\Controller;
 
 class DefaultController extends Controller
 {
 public function indexAction()
 {
 // Symfony 2.6
 $value = $this->container->getParameter('param_name');
 
 // Symfony 2.7
 $value = $this->getParameter('param_name');
 }
 }
33. Feedback about the Symfony version status
35. Support for container parameters in route conditions
36. # app/config/routing.yml
 contact:
 path: /contact
 defaults: { _controller: AcmeDemoBundle:Main:contact }
 condition: "request.headers.get('User-Agent') matches '%allowed_user_agents%'"
37. Twig as main Templating Language
38. To be able to support PHP and Twig in Symfony, there is a huge abstraction layer.
39. // Before 2.6 $container->get('templating')->render('index.html.twig'); // Since 2.7 $container->get('twig')->render('index.html.twig');
40. About 30% less memory consumption!
41. Security roles in the web profiler
42. # app/config/security.yml
 security:
 role_hierarchy:
 ROLE_ADMIN: [ ROLE_USER, FEATURE_ALPHA, ROLE_ALLOWED_TO_SWITCH ]
44. VarDumper Component
45. Did you ever tried to debug a Doctine entity ?
46. var_dump($em->getRepository('AppBundle:User)->find($id));
47. // AppKernel.php if (in_array($this->getEnvironment(), array('dev', 'test'))) {
 $bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
 // ...
 }
48. class ReferenceExample
 {
 public $info = "Circular and sibling references are displayed as `#number`.\nHovering them highlights all instances in the same dump.\n";
 }
 $var = new ReferenceExample();
 $var->aCircularReference = $var;
 dump($var);
50. You are also able to display the debug output in the web debug toolbar {% dump variable1, variable2 %}
51. Error page previews
52. # app/config/routing_dev.yml
 _errors:
 resource: "@TwigBundle/Resources/config/routing/ errors.xml"
 prefix: /_error
53. http://localhost/app_dev.php/_error/{statusCode} http://localhost/app_dev.php/_error/{statusCode}.{format}
54. Bootstrap form theme
55. # app/config/config.yml
 twig:
 form:
 resources: ['bootstrap_3_layout.html.twig']
 #resources: ['bootstrap_3_horizontal_layout.html.twig']
56. {% form_theme form 'bootstrap_3_layout.html.twig' %}
57. The security component has changed a lot in 2.6
58. // Symfony 2.5
 $user = $this->get('security.context')->getToken()->getUser();
 // Symfony 2.6 $this->get('security.token_storage')->getToken()->getUser();
59. // Symfony 2.5
 if (false === $this->get('security.context') ->isGranted('ROLE_ADMIN')) { ... }
 // Symfony 2.6
 if (false === $this ->get('security.authorization_checker')- >isGranted('ROLE_ADMIN')) { ... }
60. // Symfony 2.5
 $user = new Acme\UserBundle\Entity\User();
 $factory = $this->container->get('security.encoder_factory');
 $encoder = $factory->getEncoder($user);
 $password = $encoder->encodePassword($plainTextPassword, $user->getSalt());
 
 // Symfony 2.6
 $user = new Acme\UserBundle\Entity\User();
 $encoder = $this->container->get('security.password_encoder');
 $password = $encoder->encodePassword($user, $plainTextPassword);
61. The login action before 2.6
62. // Symfony 2.5
 public function loginAction(Request $request)
 {
 $session = $request->getSession();
 
 if ($request->attributes->has(SecurityContextInterface::AUTHENTICATION_ERROR)) {
 $error = $request->attributes->get(
 SecurityContextInterface::AUTHENTICATION_ERROR
 );
 } elseif (null !== $session && $session->has(SecurityContextInterface::AUTHENTICATION_ERROR)) {
 $error = $session->get(SecurityContextInterface::AUTHENTICATION_ERROR);
 $session->remove(SecurityContextInterface::AUTHENTICATION_ERROR);
 } else {
 $error = '';
 }
 
 $lastUsername = (null === $session) ? '' : $session->get(SecurityContextInterface::LAST_USERNAME);
 
 return $this->render(
 'AcmeSecurityBundle:Security:login.html.twig',
 array(
 'last_username' => $lastUsername,
 'error' => $error,
 )
 );
 }
63. The login action using the new login helper
64. // Symfony 2.6 public function loginAction()
 {
 $helper = $this->get('security.authentication_utils');
 
 return $this->render('login.html.twig', array(
 'last_username' => $helper->getLastUsername(),
 'error' => $helper->getLastAuthenticationError(),
 ));
 }
65. AJAX Requests
68. Date Validation Constraints
69. Assume an user has to be older than 18 years in order to register
70. use Symfony\Component\Validator\Constraints as Assert;
 
 class User
 {
 /**
 * @Assert\LessThan("-18 years")
 */
 protected $dateOfBirth;
 }
71. use Symfony\Component\Validator\Constraints as Assert;
 
 class Event
 {
 /**
 * @Assert\Range(
 * min = "first day of January",
 * max = "first day of January next year"
 * )
 */
 protected $startDate;
 }
72. New Controller Shortcuts
73. // Symfony 2.6 return $this->redirectToRoute('homepage');
 return $this->redirectToRoute('product_show', array('id' => 12), 301);
 
 // Previous Symfony versions
 return $this->redirect($this->generateUrl('homepage'));
 return $this->redirect($this->generateUrl('product_show', array('id' => 12)), 301);
74. // Symfony 2.6
 $this->addFlash('info', 'The item was created successfully.');
 
 // Previous Symfony versions
 $this->get('session')->getFlashBag()->add( 'info', 'The item was created successfully.' );
75. // Symfony 2.6
 if ($this->isGranted('ROLE_ADMIN')) {
 // ...
 }
 
 // Previous Symfony versions
 if ($this->get('security.context')- >isGranted('ROLE_ADMIN')) {
 // ...
 }
76. // Symfony 2.6
 $this->denyAccessUnlessGranted( 'ROLE_EDIT', $item, 'You cannot edit this item.' );
 
 // Previous Symfony versions
 if (false === $this->get('security.context')->isGranted('ROLE_EDIT', $item)) {
 throw $this->createAccessDeniedException('You cannot edit this item.');
 }
77. // Symfony 2.6
 $this->isCsrfTokenValid('token_id', 'TOKEN');
 
 // Previous Symfony versions
 use Symfony\Component\Security\Csrf\CsrfToken;
 $this->get('security.csrf.token_manager')->isTokenValid( new CsrfToken('token_id', 'TOKEN') );
78. The Security checker
79. The Security checker uses the composer.lock to determine known security vulnerabilities
80. $ php app/console security:check
81. Expression Language Component
82. use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
 $language = new ExpressionLanguage();
 
 echo $language->evaluate('1 + 1');
 // will echo 2
 
 echo $language->compile('1 + 2');
 // will echo "(1 + 2)"
83. /**
 * @Route("/post/{id}")
 * @Cache(smaxage="15", lastModified="post.getUpdatedAt()")
 */
 public function showAction(Post $post)
 {
 // ...
 }
84. hello:
 path: /hello/{name}
 condition: "context.getMethod() in ['GET', 'HEAD'] and request.headers.get('User-Agent') =~ '/firefox/i'"
85. /**
 * @Assert\Expression("this.getFoo() == 'fo'", message="Not good!" */ class Obj
 {
 public function getFoo()
 {
 return 'foo';
 } ...
86. Great Form Panel in the Web Profiler
88. So much more …
89. Eco- system https://flic.kr/p/r88dnm
90. Fast evolution https://flic.kr/p/6N6NGf
91. MAJOR https://flic.kr/p/cyWcdj VERSIONS ON A REGULAR BASIS
92. A new major version is "just" a milestone where we can clean things up and get rid of the cruft
93. What is Symfony 3.0? https://flic.kr/p/7puWp7
94. All new features from 3.0 were introduced in 2.x versions already
95. The low-level architecture of the framework won't change
96. Symfony 3.0 is more standard
97. • "# app/
 $ "# cache/
 $ "# config/
 $ "# logs/
 $ %# ...
 "# src/
 $ %# ...
 "# vendor/
 $ %# ...
 %# web/
 "# app.php
 %# ... "# app/
 $ "# AppCache.php | "# AppKernel.php | "# config/ | %# ... "# bin/ | "# console.php | %# ... "# src/
 $ %# ... "# var/ | "# cache/ | "# logs/ | %# ... "# web/
 | "# app.php
 | %# ... "# phpunit.xml.dist %# ... Old New
98. Symfony 3.0 fixes some architecture mistakes
99. •use Symfony\Component\HttpFoundation\Request;
 
 class FooService
 {
 public function __construct(Request $request)
 {
 $this->request = $request;
 }
 }
100. use Symfony\Component\HttpFoundation\RequestStack;
 
 class FooService
 {
 public function __construct(RequestStack $requestStack)
 {
 $this->requestStack = $requestStack;
 }
 }
101. Symfony 3.0 is more decoupled and more reusable than ever
102. Symfony 3.0 Schedule https://flic.kr/p/9bUbH3
103. Symfony 2.7, to be released in May 2015, will be the next long term support release
104. 2.7 will be maintained until May 2018 for bug fixes and May 2019 for security ones
105. Symfony 3.0 will be released in November 2015
106. The first 3.x long term release will be 3.2 to be released in May 2017
107. – The Release Process The dual maintenance mode was adopted to make every Symfony user happy. Fast movers, who want to work with the latest and the greatest, use the standard version: a new version is published every six months, and there is a two months period to upgrade. Companies wanting more stability use the LTS versions: a new version is published every two years and there is a year to upgrade.
108. The master branch of the main repository now hosts the Symfony 3.0 code
109. Merge strategy • New features will be merged in 2.7 if they do not break backward compatibility or if they do not impact existing code • New features will only be merged in 3.0 if there is no way to make them work in the 2.7 branch • Bug fixes will still be merged in the oldest and still maintained branch and will be merged back to newer versions on a regular basis, including the master (aka 3.0) branch.
110. People still on Symfony 2.3 have a year (until May 2016) to upgrade to Symfony 2.7
111. PHP 5.5 The minimum PHP version required for Symfony 3.0
112. Break backward compatibility https://flic.kr/p/KEKro
113. Symfony 3.0 breaks backward compatibility because the compatibility layer introduced in all 2.x versions will be removed
114. Deprecation notices framework These notices help you easily upgrade to Symfony 3.0 starting today
115. You can start to make your code "more compatible" with 3.0 TODAY!
116. Read the upgrade guide for Symfony 3.0
117. The need for a Symfony 2.8 version
118. This version will work as any other 2.x versions, we will be able to add new features, deprecated other ones, and provide a good upgrade path to Symfony 3.0
119. Symfony 2.8 will be released in November 2015 at the same time as Symfony 3.0
120. 3.2 being the next LTS release and the first one of the 3.x branch
121. Symfony 2.8 is going to be a LTS release as well to
122. Allow people to still have a year to upgrade from 2.8 to 3.2 when it comes out
123. More about Symfony3
125. Fin