Symfony 4 in action (updated for 4.3)

Transcript

1. Fabien Potencier
   @fabpot
   

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2. Have you ever

   used Symfony?
   1.x? 2.x? 3.x? 4.x?
   

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3. What is Symfony 4?
   A new developer experience
   On a rock solid foundation
   From micro-style to monolith
   

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4. 4
   in action…
   

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6. $ symfony new demo
   # Want to try Symfony 4.3 (dev version)?
   $ symfony new demo --version=dev-master
   

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8. symfony/skeleton
   "require": {
   "php": "^7.1.3",
   "ext-ctype": "*",
   "ext-iconv": "*",
   "symfony/console": "*",
   "symfony/dotenv": "*",
   "symfony/flex": "^1.1",
   "symfony/framework-bundle": "*",
   "symfony/yaml": "*"
   },
   

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9. $ symfony new demo --version=dev-master --debug
   Demo
   

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10. $ symfony new demo --version=dev-master --debug
    Demo
    

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11. $ symfony new demo --version=dev-master --debug
    Demo
    "scripts": {
    "auto-scripts": {
    "cache:clear": "symfony-cmd",
    "assets:install %PUBLIC_DIR%": "symfony-cmd"
    },
    "post-install-cmd": [
    "@auto-scripts"
    ],
    "post-update-cmd": [
    "@auto-scripts"
    ]
    },
    

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12. $ symfony new demo --version=dev-master --debug
    Demo
    

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13. $ tree -I vendor
    $ find . -type f | wc -l
    Symfony 4 is lightweight
    Only 16 files
    vs 31 SE
    3300 total
    vs 8867 SE
    -65%
    

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14. New directory structure
    • Less depth, easier to navigate
    • Non-PHP files in their own directories
    (assets/, templates/)
    • Decoupled from Symfony (assets/, src/,
    templates/, public/)
    

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15. https://github.com/symfony/recipes/

    tree/master/

    symfony/framework-bundle/4.2
    Demo
    

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16. Recipes repositories
    https://github.com/symfony/recipes
    
    Curated recipes by Symfony core team
    
    https://github.com/symfony/recipes-contrib
    
    Open to all contributions
    370+ recipes
    

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17. $ composer show | wc -l
    Demo
    Only 25 deps
    vs 38 + 50 = 88 SE
    

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18. Symfony 2+/3+
    Monolog Bundle
    SwiftMailer Bundle
    Polyfill Util
    Polyfill PHP 7.0
    Polyfill PHP 5.6
    Polyfill Mbstring
    Polyfill Intl ICU
    Polyfill APCu
    PHPUnit Bridge
    Debug Bundle
    Framework Bundle
    Security Bundle
    Twig Bundle
    WebProfiler Bundle
    WebServer Bundle
    Doctrine Bridge
    Monolog Bridge
    Twig Bridge
    Monolog
    Doctrine (11)
    SecurityChecker
    Generator Bundle
    ParamHandler
    FrameworkExtra Bundle
    Distribution Bundle
    Asset
    BrowserKit
    Cache
    ClassLoader
    Config
    Console
    CssSelector
    Debug
    DependencyInjection
    DomCrawler
    Dotenv
    EventDispatcher
    ExpressionLanguage
    Filesystem
    Finder
    Form
    HttpFoundation
    HttpKernel
    Inflector
    Intl
    Ldap
    OptionsResolver
    Process
    PropertyAccess
    PropertyInfo
    Routing
    Security
    Serializer
    Stopwatch
    Templating
    Translation
    Validator
    VarDumper
    WebLink
    Workflow
    Yaml
    4 bridges
    15 librairies
    11 bundles
    42 components
    SwiftMailer
    

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19. Symfony 4+
    Polyfill Mbstring
    Framework Bundle
    Cache
    Config
    Debug
    DependencyInjection
    Dotenv
    EventDispatcher
    Filesystem
    Finder
    HttpFoundation
    HttpKernel
    Routing
    Yaml
    0 bridges
    1 library
    1 bundle
    13 components
    Flex
    

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20. $ symfony server:start -d
    $ symfony server:log
    Demo
    

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21. Demo
    

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22. $ ./bin/console
    Demo
    15 commands
    vs 57 SE
    

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23. $ git init
    $ git add .
    $ git commit -a -m"init"
    Demo
    

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24. $ composer req maker
    Demo
    

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25. Aliases
    • Shortcuts for common packages (log, behat,
    phpunit, …)
    • Optimized for Symfony Components (no need
    to use the symfony/ prefix, just workflow, dom-crawler, …)
    • Opinionated choices (admin, api, orm, mailer, test,
    …)
    

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26. Packs
    • Bundle several dependencies into a
    consistent set (debug, profiler, api, test, …)
    $ composer req debug
    

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27. Discover Aliases and Packs
    https://flex.symfony.com/
    

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28. $ composer req maker
    $ git diff config/bundles.php
    Symfony Maker Bundle
    

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29. $ ./bin/console list make
    Symfony Maker Bundle
    

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30. $ ./bin/console make:controller
    Symfony Maker Bundle
    

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31. $ composer req annot
    Symfony Maker Bundle
    

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32. $ ./bin/console make:controller DefaultController
    Symfony Maker Bundle
    

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33. $ vim src/Controller/DefaultController.php
    Symfony Maker Bundle
    src/ is about YOUR code
    

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34. Symfony 4 helps you

    grow your app

    with ease
    

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35. $ composer req twig
    Adding Twig
    

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36. Never define

    your service again*
    

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37. Adding a Twig Extension
    Where do I store
    the Twig extension
    class?
    Which file do I
    need to change to
    register it?
    Which tag do I need
    to use?
    How do I declare a
    tag in YAML?
    Which interface/class
    do I need to implement/
    extend? It’s too complex. What
    about doing it the dirty
    way and do it in the
    controller instead?
    hmm, ok
    

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38. $ ./bin/console make:twig-extension
    Adding a Twig Extension
    Add your logic in the
    generated class…
    DONE!
    

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39. Full Automation works for…
    • Twig extensions
    • Event listeners
    • Doctrine repositories
    • Commands
    • Voters
    • Registration form system
    • …
    

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40. Beyond “Hello World”
    • Defining some models via Doctrine
    • Adding an API for my model
    • Managing data with an admin
    

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41. $ composer req orm admin api
    Full stack really quick
    

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42. $ composer req orm admin api
    Full stack really quick
    

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43. $ ./bin/console make:entity Product --api-resource
    Full stack really quick
    

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44. $ vim config/packages/easy_admin.yaml
    Full stack really quick
    

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45. $ vim .env
    DATABASE_URL="sqlite:///%kernel.project_dir%/var/
    data.db"
    $ ./bin/console doctrine:database:create
    $ ./bin/console doctrine:schema:update --force
    Full stack really quick
    

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46. It works!
    One line config change
    One annotation added
    

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48. Typical features
    to the next level
    

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49. I want to send emails

    from my controller
    

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50. $ composer req symfony/mailer
    Symfony Maker Bundle
    use Symfony\Component\Mailer\MailerInterface;
    public function index(MailerInterface $mailer)
    {
    $mailer->send(
    (new Email())
    ->from('fabien@symfony.com')
    ->to('fabien@symfony.com')
    ->subject('Some subject')
    ->text('Some text...')
    );
    MAILER_DSN=smtp://localhost
    

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51. I want to send rich emails

    from my controller
    

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52. Symfony Maker Bundle
    use Symfony\Component\Mailer\MailerInterface;
    public function index(MailerInterface $mailer)
    {
    $mailer->send(
    (new TemplatedEmail())
    ->from('fabien@symfony.com')
    ->to('fabien@symfony.com')
    ->subject('Some subject')
    ->htmlTemplate('@emails/welcome.html.twig')
    ->context([
    'city' => 'Tunis'
    ])
    );
    MAILER_DSN=smtp://localhost
    

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53. I want to send rich and responsive emails

    from my controller
    

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54. $ composer req twig/inky-extension
    Symfony Maker Bundle
    MAILER_DSN=smtp://localhost
    {% apply inky|inline_css(source("@zurb/stylesheets/main.css")) %}
    
    
    
    
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55. I want to send rich and responsive emails

    from my controller

    via my provider's API
    

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56. $ composer req symfony/mailgun-mailer
    MAILER_DSN=http://key:domain@mailgun
    Symfony Maker Bundle
    Amazon SES
    Google Gmail
    Mandrill
    Mailgun
    Postmark
    Sendgrid
    

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57. I want to send rich and responsive emails

    from my controller

    via my provider's API

    asynchronously
    

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58. $ composer req messenger
    framework:
    messenger:
    transports:
    email: "doctrine://default"
    routing:
    Symfony\Component\Mailer\Messenger\SendEmailMessage: email
    $ ./bin/console messenger:consume
    Symfony Maker Bundle
    

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59. I want to send rich and responsive emails

    from my controller

    via my provider's API

    asynchronously with AMQP
    

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60. $ composer req messenger
    framework:
    messenger:
    transports:
    email: "amqp://guest:guest@localhost:5672/%2f/messages"
    routing:
    Symfony\Component\Mailer\Messenger\SendEmailMessage: email
    $ ./bin/console messenger:consume
    Symfony Maker Bundle
    

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61. Symfony 4 recap
    • Auto-configuration for any Composer package
    • A Maker bundle to simplify creating files
    • No boilerplate code, just business logic
    • Controllers and commands as services
    • From micro to monolith
    • Meta-packages doing a lot for you out of the box
    Productivity
    boost!
    Better DX
    

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62. Why?
    

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63. Featureful and the most downloaded
    

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64. The most advanced API solution
    https://api-platform.com/
    

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65. The most advanced e-commerce solution
    

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66. Many admin-gen solutions
    https://github.com/EasyCorp/EasyAdminBundle
    

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67. The foundation of the PHP ecosystem
    

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68. $ composer require symfony/console
    Truly independent components
    (new Console\Application('echo', '1.0.0'))
    ->register('echo')
    ->addArgument('foo', Console\Input\InputArgument::OPTIONAL, 'The directory')
    ->addOption('bar', null, Console\Input\InputOption::VALUE_REQUIRED)
    ->setCode(function(Console\Input\InputInterface $input,
    Console\Output\OutputInterface $output) {
    // output arguments and options
    })
    ->getApplication()
    ->setDefaultCommand('echo', true) // Single command application
    ->run();
    

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69. • CssSelector
    • Debug
    • Dotenv
    • Finder
    • Mailer
    • Mime
    • sMessenger
    • Polyfill : APCu, ctype, iconv, intl, mbstring, PHP, …
    • Process
    • VarDumper
    • VarExporter
    • Yaml
    • …
    Truly independent components
    

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70. Predictable releases and support
    https://symfony.com/releases
    •Every month: a patch release
    •Every 6 month: a minor release
    •Every 2 years: a major release
    •On the go: security releases
    

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71. Predictable releases and support
    Release
    end of
    support
    +8 months +14 months +36 months +48 months
    end of security
    support
    end of security
    support
    end of
    support
    Standard Releases
    (3.3, 4.0)
    LTS Releases
    (2.8, 3.4)
    

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72. Predictable releases and support
    3.4
    LTS
    4.2
    Stable
    https://symfony.com/releases
    

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73. Stability and predictability
    • Strict semantic versioning
    • Deprecation/BC policy
    • Responsible security issue management
    https://symfony.com/bc
    https://symfony.com/security
    

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74. The fastest framework around
    x2
    x3
    x4
    http://www.phpbenchmarks.com/
    

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75. Scale from micro to monolith
    13 files
    15 dependencies
    start with
    … and grow as you see fit
    via automation
    

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76. Community oriented
    • Code of conduct

    https://symfony.com/conduct
    • Enforced by the CARE team

    https://symfony.com/care
    • Respectful Review Comments

    https://symfony.com/doc/current/contributing/community/review-comments.html
    Diversity initiative

    https://symfony.com/diversity
    

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77. https://symfony.com/4
    

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78. Thank you!
    

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