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Conceptos b谩sicos de Symfony, Doctrine Relations y Warp Drive

Add dimensions to your app with database relations! Maybe you have many hive-minded aliens all related to one collective. Resistance to Doctrine relations is futile!

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About this course

What PHP libraries does this tutorial use? 

// composer.json
{
    "require": {
        "php": ">=8.2",
        "ext-ctype": "*",
        "ext-iconv": "*",
        "babdev/pagerfanta-bundle": "^4.5", // v4.5.0
        "doctrine/dbal": "^4", // 4.2.3
        "doctrine/doctrine-bundle": "^2.13", // 2.14.0
        "doctrine/doctrine-migrations-bundle": "^3.3", // 3.4.1
        "doctrine/orm": "^3.3", // 3.3.2
        "knplabs/knp-time-bundle": "^2.2", // v2.4.0
        "pagerfanta/doctrine-orm-adapter": "^4.7", // v4.7.1
        "php-cs-fixer/shim": "^3.46", // v3.73.1
        "phpdocumentor/reflection-docblock": "^5.3", // 5.6.1
        "phpstan/phpdoc-parser": "^2.0", // 2.1.0
        "stof/doctrine-extensions-bundle": "^1.12", // v1.13.0
        "symfony/asset": "7.2.*", // v7.2.0
        "symfony/asset-mapper": "7.2.*", // v7.2.3
        "symfony/console": "7.2.*", // v7.2.1
        "symfony/dotenv": "7.2.*", // v7.2.0
        "symfony/flex": "^2", // v2.5.0
        "symfony/framework-bundle": "7.2.*", // v7.2.4
        "symfony/http-client": "7.2.*", // v7.2.4
        "symfony/monolog-bundle": "^3.0", // v3.10.0
        "symfony/property-access": "7.2.*", // v7.2.3
        "symfony/property-info": "7.2.*", // v7.2.3
        "symfony/runtime": "7.2.*", // v7.2.3
        "symfony/serializer": "7.2.*", // v7.2.4
        "symfony/stimulus-bundle": "^2.13", // v2.23.0
        "symfony/twig-bundle": "7.2.*", // v7.2.0
        "symfony/ux-turbo": "^2.13", // v2.23.0
        "symfony/yaml": "7.2.*", // v7.2.3
        "symfonycasts/tailwind-bundle": "^0.9.0", // v0.9.0
        "twig/extra-bundle": "^2.12|^3.0", // v3.20.0
        "twig/twig": "^2.12|^3.0" // v3.20.0
    },
    "require-dev": {
        "doctrine/doctrine-fixtures-bundle": "^4.0", // 4.0.0
        "symfony/debug-bundle": "7.2.*", // v7.2.0
        "symfony/maker-bundle": "^1.52", // v1.62.1
        "symfony/stopwatch": "7.2.*", // v7.2.4
        "symfony/web-profiler-bundle": "7.2.*", // v7.2.4
        "zenstruck/foundry": "^2.2" // v2.3.8
    }
}

En la parte 1 del Tutorial de Doctrine hicimos cosas muy cool con Doctrine (nos lo hemos ganado 馃崷 imo). Creamos clases de entidad (隆gracias make:entity!), hicimos consultas personalizadas, migraciones, configuramos Docker 隆y mucho m谩s!

Pero... ignoramos una de las partes m谩s importantes de Doctrine: 隆las relaciones / asociaciones! Afortunadamente, crear relaciones de base de datos (ManyToOne, ManyToMany, etc.) nunca ha sido tan f谩cil, y Doctrine se encarga de una gran parte del trabajo por nosotros.

Despega en T menos... 隆empieza ya! 馃殌

  • Generando la famosa relaci贸n (asociaci贸n) ManyToOne
  • Estableciendo la relaci贸n (olvidate de las claves externas, 隆todo gira en torno a los objetos!)
  • Manejar relaciones en las fixtures con Foundry
  • El lado "inverso" de una relaci贸n OneToMany
  • Filtrar una colecci贸n de objetos relacionados con Criteria
  • orphanRemoval (隆no es tan cruel como parece!)
  • Consultas con JOIN
  • Resolver el problema N+1
  • Relaciones ManyToMany
  • ManyToMany con datos adicionales en la tabla de uni贸n

Tu misi贸n: abordar las relaciones Doctrine... sin estrellar la nave. 隆Lo tienes!

Next courses in the Symfony: The Fundamentals section of the Symfony Track!

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10 Comments

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Eugeny avatar Eugeny 10 months ago

Thanks for the work done! For some reason there are no subtitles in parts 23 and 24.

Reply |

Hey @Eugeny

Could you check it again? I do see the subtitles for those chapters. Perhaps you get an error in the browser's console?

Cheers!

1 Reply |

Hello!
Today I see that there are subtitles, a couple of days ago there were none for some reason.

Reply |

Perhaps they weren't ready by that time. Thanks for informing us anyway ;)

Reply |

Today is a good day. The sun is shining, birds are singing and Ryan is back. Life is good :)

Reply |

Amen to that! Love that "Today is a good day." Gratitude for still being here 鉂わ笍

Reply |
Nick avatar Nick 1 year ago

Hey team symfonycasts
Really loving this course. Any ideas when this next part will be released? :)

Reply |

Hey @Nick!

I'm glad you're digging this course! Next part will be released in just the next few weeks!

Kevin

Reply |
Tac-Tacelosky avatar Tac-Tacelosky 1 year ago

I'm really hoping Doctrine ORM 3.4 comes out soon, so we can use Property Hooks. This makes lazy-loading MUCH easier, and will allow us to get rid of lots of boilerplate setters/getters.

Please consider including that functionality with this course. I know not everyone has PHP 8.4, but for those that do it'll be great to learn best practices for how to code. https://www.doctrine-project.org/blog/index.html has more about what's going to be in 3.4, and as they say "The lazy objects RFC in PHP 8.4 changes everything for the better in Doctrine ORM internally". I looks forward to learning the best practices for Doctrine Relations, especially with the context of API Platform and the Symfony Serializer.

Reply |

Hey @Tac-Tacelosky

Thank you for your input! I'll share it with the team

Cheers!

Reply |

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