Chapters

23 Chapters | 2:22:24 |

01

Installing Doctrine

7:54
02

make:docker:database

5:24
03

docker-compose & Exposed Ports

4:46
04

docker-compose Env Vars & Symfony

4:59
05

doctrine:database:create & server_version

4:49
06

Entity Class

7:57
07

Migrations

5:34
08

Persisting to the Database

8:42
09

Fetching Data & The Repository

5:28
10

Entity objects in Twig

4:55
11

"5 Minutes Ago" Strings

3:15
12

Custom Repository Class

8:10
13

DQL & The Query Builder

6:49
14

Reusing Query Logic & Param Converters

3:35
15

Automatic Controller Queries: Param Converter

3:28
16

Smarter Entity Methods

7:57
17

Request Object & POST Data

8:08
18

Update Query & Rich vs Anemic Models

7:58
19

Data Fixtures

5:18
20

Foundry: Fixture Model Factories

5:56
21

Foundry Tricks

7:28
22

Sluggable: Doctrine Extensions

5:57
23

Timestampable & Failed Migrations

8:01

> Symfony 5 > Doctrine, Symfony & the Database

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15.

Automatic Controller Queries: Param Converter

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7 Comments

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Hugo N. 5 years ago

Completely bluffed by this Param Converter possibilities. Is it not more demanding though, performance-wise, than to do a simple query on the slug ? I don't really know what's behind, but I am curious :)

1 |

Victor SFCASTS Hugo N. 5 years ago

Hey Hugo,

ParamConverter do the same thing as you why do it manually: takes the slug, get the repository, and find the entity by slug throwing an 404 exception if not found. As a result, when you use this param converter feature - you write less code, and so your controller remains more clean and easy to read. No any performance impact in theory, but you always can do some performance tests to know for sure ;)

Cheers!

1 |

Joel R. 3 years ago

Since the lessons for Symfony 6 hasn't got this far yet, I've been working through this batch using my Symfony 6 installation. Not too many issues with it but I notice @5:10, points 3 and 4 don't appear to be true anymore. Any idea why?

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Jewel F. 5 years ago

I can't autowire

Question

entity. Shows error I have added below. Please help.. I am stucked

Cannot autowire argument $question of "App\Controller\QuestionController::show()": it references class "App\Entity\Question" but no such service exists.

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MolloKhan SFCASTS Jewel F. 5 years ago edited

Hey Jewel F.

You may be missing some configuration in your route. Check this post about how to use the param converter annotations https://symfony.com/doc/cur...

Cheers!

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Facundo ariel P. 5 years ago edited

I've found the ParamConverter to be a good solution when instead of typehinting with the entity class itslef, an interface is used as a type hint. So I wrote a param converter that follows the doctrine.orm.resolve_target_entities value.

Is there any other better way to do this?

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Victor SFCASTS Facundo ariel P. 5 years ago

Hey facundo,

Do your entities implement interfaces? :) Do you have a few entities that should have the same method signatures in it? If so, yes, it makes sense to use interfaces, but then how would you know which exactly entity to query if a few entities are implementing the same interface? :)

But every your entity implements a separate unique interface - then it's overkill, and you use interfaces incorrectly :)

It's difficult to imagine your setup for me, so difficult to advice something. But still, typehinting real entity class names is probably the best solution here, simple and robust.

Cheers!

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This tutorial also works great for Symfony 6!

Symfony 5 Doctrine 2

What PHP libraries does this tutorial use?

// composer.json
{
    "require": {
        "php": "^7.4.1",
        "ext-ctype": "*",
        "ext-iconv": "*",
        "composer/package-versions-deprecated": "^1.11", // 1.11.99
        "doctrine/doctrine-bundle": "^2.1", // 2.1.1
        "doctrine/doctrine-migrations-bundle": "^3.0", // 3.0.2
        "doctrine/orm": "^2.7", // 2.8.2
        "knplabs/knp-markdown-bundle": "^1.8", // 1.9.0
        "knplabs/knp-time-bundle": "^1.11", // v1.16.0
        "sensio/framework-extra-bundle": "^6.0", // v6.2.1
        "sentry/sentry-symfony": "^4.0", // 4.0.3
        "stof/doctrine-extensions-bundle": "^1.4", // v1.5.0
        "symfony/asset": "5.1.*", // v5.1.2
        "symfony/console": "5.1.*", // v5.1.2
        "symfony/dotenv": "5.1.*", // v5.1.2
        "symfony/flex": "^1.3.1", // v1.21.6
        "symfony/framework-bundle": "5.1.*", // v5.1.2
        "symfony/monolog-bundle": "^3.0", // v3.5.0
        "symfony/stopwatch": "5.1.*", // v5.1.2
        "symfony/twig-bundle": "5.1.*", // v5.1.2
        "symfony/webpack-encore-bundle": "^1.7", // v1.8.0
        "symfony/yaml": "5.1.*", // v5.1.2
        "twig/extra-bundle": "^2.12|^3.0", // v3.0.4
        "twig/twig": "^2.12|^3.0" // v3.0.4
    },
    "require-dev": {
        "doctrine/doctrine-fixtures-bundle": "^3.3", // 3.4.0
        "symfony/debug-bundle": "5.1.*", // v5.1.2
        "symfony/maker-bundle": "^1.15", // v1.23.0
        "symfony/var-dumper": "5.1.*", // v5.1.2
        "symfony/web-profiler-bundle": "5.1.*", // v5.1.2
        "zenstruck/foundry": "^1.1" // v1.5.0
    }
}

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