A dive into Symfony 4
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Symfony 4 introduced several major changes including a new directory structure without bundles, use of environment variables instead of parameters.yaml, and Symfony Flex for defining application dependencies and configuration. It also improved the developer experience with features like automatic wiring and a bundle for generating common application code.
![return [
SymfonyBundleFrameworkBundleFrameworkBundle::class => ['all' => true],
SymfonyBundleWebServerBundleWebServerBundle::class => ['dev' => true],
SymfonyBundleMakerBundleMakerBundle::class => ['dev' => true],
SymfonyBundleDebugBundleDebugBundle::class => ['dev' => true, 'test' => true],
SymfonyBundleSecurityBundleSecurityBundle::class => ['all' => true],
];](https://image.slidesharecdn.com/adiveintosf4-181023075109/85/A-dive-into-Symfony-4-27-320.jpg)
![index.php
if (!isset($_SERVER['APP_ENV'])) {
if (!class_exists(Dotenv::class)) {
throw new RuntimeException('APP_ENV environment variable is not defined.’);
}
(new Dotenv())->load(__DIR__.'/../.env');
}
$env = $_SERVER['APP_ENV'] ?? 'dev';
$debug = (bool) ($_SERVER['APP_DEBUG'] ?? ('prod' !== $env));](https://image.slidesharecdn.com/adiveintosf4-181023075109/85/A-dive-into-Symfony-4-35-320.jpg)
![Flex
{
"bundles": {
"SymfonyBundleFrameworkBundleFrameworkBundle": ["all"]
},
"copy-from-recipe": {
"config/": "%CONFIG_DIR%/",
"public/": "%PUBLIC_DIR%/",
"src/": "%SRC_DIR%/"
},
"composer-scripts": {
"make cache-warmup": "script",
"assets:install --symlink --relative %PUBLIC_DIR%": "symfony-cmd"
},
"env": {
"APP_ENV": "dev",
"APP_DEBUG": "1",
"APP_SECRET": "%generate(secret)%"
},
"gitignore": [
".env",
"/public/bundles/",
"/var/",
"/vendor/"
]
}
https://medium.com/@fabpot/symfony-4-automate-your-workflow-fbbf609b5a1d](https://image.slidesharecdn.com/adiveintosf4-181023075109/85/A-dive-into-Symfony-4-41-320.jpg)
A dive into Symfony 4
- 1. A dive into Symfony 4
- 2. A long time ago... Symfony 2 was born
- 5. How did it go?
- 6. Bene... ma non benissimo :-(
- 7. Bene... ma non benissimo :-(
- 8. Distributions Initial idea: one distribution per app type • Standard Distribution • Rest Distribution • Cms Distribution • ...
- 9. Distributions In Reality: distributions never took off, everybody uses Standard Distribution and removes stuff manually
- 10. Bundles Initial Idea: organise reusable code in bundles
- 11. Bundles Have you ever seen this organisation? ShopBundle CmsBundle AdminBundle ...
- 12. Bundles Have you ever seen this organisation? ShopBundle CmsBundle AdminBundle Common|General| ... | Bundle
- 13. Bundles Vendor code is reusable Your App code is not
- 14. Bundles Installing/Removing a Bundle is mostly a manual operation # composer require/remove <bundle> # add/remove to AppKernel.php # add/remove configurations
- 15. DX initiative Symfony has a steep learning curve compared to other frameworks The Developer eXperience initiative aims to create a better onboarding and framework usage experience
- 16. DX initiative Symfony has a steep learning curve compared to other frameworks The Developer eXperience initiative aims to create a better user experience
- 17. Symfony 4 was born...
- 19. New Directory Structure The idea behind that is to have a more intuitive structure
- 21. New Directory Structure bin config public src var vendor
- 22. New Directory Structure bin config public src var vendor index.php ... favicon.ico robots.txt bundles
- 23. New Directory Structure bin config public src var vendor cache/ log/ session/
- 24. New Directory Structure bin config public src var vendor Kernel.php Entity Repository Command Controller ...
- 25. No Bundles!
- 26. New Directory Structure bin config public src var vendor bundles.php routes.yaml services.yaml doctrine.yaml security.yaml ... packages/ dev/ routes.yaml test/ routes.yaml prod/ routes.yaml
- 27. return [ SymfonyBundleFrameworkBundleFrameworkBundle::class => ['all' => true], SymfonyBundleWebServerBundleWebServerBundle::class => ['dev' => true], SymfonyBundleMakerBundleMakerBundle::class => ['dev' => true], SymfonyBundleDebugBundleDebugBundle::class => ['dev' => true, 'test' => true], SymfonyBundleSecurityBundleSecurityBundle::class => ['all' => true], ];
- 28. New Directory Structure assets bin data config public src templates tests translations var vendor
- 31. Environment Variables Symfony already has them eg. SYMFONY__ENV
- 32. Environment Variables Now resolved at runtime! You can change them without touching the app https://www.12factor.net/config
- 33. Environment Variables doctrine: dbal: driver: 'pdo_sqlite' server_version: '3.15' charset: utf8mb4 url: ‘%env(resolve:DATABASE_URL)%' https://symfony.com/blog/new-in-symfony-3-4-advanced-environment-variables
- 34. .env ###> symfony/framework-bundle ### APP_ENV=dev APP_SECRET=2a0f335581bd72b6077840e29d73ba36 TRUSTED_PROXIES=127.0.0.1,127.0.0.2 TRUSTED_HOSTS=localhost,example.com,127.0.0.1 ###< symfony/framework-bundle ###
- 35. index.php if (!isset($_SERVER['APP_ENV'])) { if (!class_exists(Dotenv::class)) { throw new RuntimeException('APP_ENV environment variable is not defined.’); } (new Dotenv())->load(__DIR__.'/../.env'); } $env = $_SERVER['APP_ENV'] ?? 'dev'; $debug = (bool) ($_SERVER['APP_DEBUG'] ?? ('prod' !== $env));
- 36. Symfony Flex
- 37. Flex A new way to create and evolve a Symfony application Composition over inheritance Start small and add what you need
- 38. Flex Integrates into composer workflow Automates bundles installation and configuration
- 39. Flex
- 40. Flex
- 41. Flex { "bundles": { "SymfonyBundleFrameworkBundleFrameworkBundle": ["all"] }, "copy-from-recipe": { "config/": "%CONFIG_DIR%/", "public/": "%PUBLIC_DIR%/", "src/": "%SRC_DIR%/" }, "composer-scripts": { "make cache-warmup": "script", "assets:install --symlink --relative %PUBLIC_DIR%": "symfony-cmd" }, "env": { "APP_ENV": "dev", "APP_DEBUG": "1", "APP_SECRET": "%generate(secret)%" }, "gitignore": [ ".env", "/public/bundles/", "/var/", "/vendor/" ] } https://medium.com/@fabpot/symfony-4-automate-your-workflow-fbbf609b5a1d
- 42. symfony.sh
- 44. alias orm, twig, security, form, validation, ...
- 45. So long Standard Edition...
- 49. Other Bits...
- 50. From Sf 3.* to Sf 4 Symfony 3.4 is Symfony 4 with and additional compat layer Migration path: upgrade to 3.4, remove deprecations, update to 4 https://symfony.com/doc/current/setup/flex.html#upgrade-to-flex
- 51. Autowiring Wait 5 minutes... :-P
- 59. Thank you! Michele Orselli _orso_ micheleorselli / ideatosrl [email protected] https://joind.in/talk/2a90f