Chapters

28 Chapters | 2:24:59 |

01

Give me Clean URL Strings (slugs!)

5:39
02

DoctrineExtensions: Sluggable

4:59
03

Refactoring Carefully

3:41
04

ManyToMany Relationship

5:18
05

Inserting into a ManyToMany

5:27
06

Fetching Items from a ManyToMany Collection

3:45
07

ManyToMany: The Inverse Side of the Relationship

6:45
08

Removing a ManyToMany Item

5:16
09

Hooking up the Scientist Removal JavaScript

2:50
10

ManyToMany & Fixtures

3:30
11

Joining Across a ManyToMany + EXTRA_LAZY Fetch

5:34
12

EntityType Checkboxes with ManyToMany

5:39
13

Saving the Inverse Side of a ManyToMany

4:03
14

Form by_reference + Adder and Remover

4:40
15

Synchronizing Owning & Inverse Sides

4:03
16

ManyToMany with Extra Fields

8:20
17

Join Entity App Refactoring

2:40
18

Using the new OneToMany Collections

5:46
19

Embedded Form: CollectionType

6:36
20

Collection Delete & allow_delete

4:49
21

Deleting an Item from a Collection: orphanRemoval

5:14
22

CollectionType: Adding New with the Prototype

7:07
23

Adding to a Collection: Cascade Persist

6:04
24

Embedded Form Validation with @Valid

5:05
25

Customizing the Collection Form Prototype

5:56
26

Form Events: A readonly Embedded Field

4:46
27

Collection Filtering: The Easy Way

6:05
28

Criteria System: Champion Collection Filtering

5:24

> Symfony 3 > Doctrine Collections: ManyToMany, Forms & other Complex Relations

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08.

Removing a ManyToMany Item

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16 Comments

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kubaf 7 years ago edited

If you're fetching User and Genus, why not to make use of param converter, that will handle NotFoundException and fetching from DB ?


/**
 * @Route("/genus/{slug}/remove-user/{user_id}", name="genus_scientist_remove")
 * @ParamConverter("scientist", class="AppBundle:User", options={"id" = "user_id"})
 * @Method("DELETE")
 *
 * @return Response
 */
public function removeGenusScientistAction(Genus $genus, User $scientist)
{
    $genus->removeGenusScientist($scientist);

    $em = $this->getDoctrine()->getManager();
    $em->persist($genus);
    $em->flush();

    return new Response(null, 204);
}

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MolloKhan SFCASTS kubaf 7 years ago edited

Hey kubaf

You are totally right, we can be lazier and let the ParamConverter to do the job for us, but from a teaching perspective, it is more complicated to explain what's going on behind the scenes

Have a nice day!

2 |

adrianbadarau 7 years ago

How could we use route=>model binding to get Doctrine Entity versions and not just ids?

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weaverryan SFCASTS adrianbadarau 7 years ago edited

Yo adrianbadarau!

I'm not sure what you mean - can you give an example of your setup and what you'd like to accomplish?

Cheers!

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adrianbadarau weaverryan 7 years ago

I wanted to do something like public ' function removeScientistAction(Genus $genus, User $user) '

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adrianbadarau weaverryan 7 years ago

But it's ok, I managed to do it with @ParamConverter

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weaverryan SFCASTS adrianbadarau 7 years ago

You did it exactly right then :). Cheers!

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Jose Beteta Garcia 7 years ago

Persist is not necessary to remove an existing element from the collection.

Following the docs.

* NOTE: The persist operation always considers entities that are not yet known to
* this EntityManager as NEW. Do not pass detached entities to the persist operation.

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Victor SFCASTS Jose Beteta Garcia 7 years ago

Hey Jose,

Yes, you're right, it's unnecessary to call persist() if entity is already in the DB. Thank for this tip!

Cheers!

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Jose Beteta Victor 7 years ago

You're welcome :)

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eCosinus 7 years ago

Hi, how to you get code completion and color syntaxing on javascript in your twig template ? Thanks
By the way this lesson about doctrine relationship is amazing

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weaverryan SFCASTS eCosinus 7 years ago edited

Ah, thanks eCosinus! I'm using PhpStorm, and I believe it naturally gives you highlighting and code completion on your JavaScript inside Twig. Do you see something different in PhpStorm for you? It should see the <script> tag, and know that there is JavaScript inside.

Cheers!

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eCosinus weaverryan 7 years ago

Hi, I m using phpstorm too with the symfony plugin, completion works well in twig template and php files except for javascript tags <script> in template files. I have no completion netiher color highlighting

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Victor SFCASTS eCosinus 7 years ago edited

Hey eCosinus ,

Do you use the latest PhpStorm version? It'w weird, if it works well for templates, it should work inside javascript tags too. I'm wondering, what is name of your template where you don't have autocompletion? Is it something like "my-script.js.twig"? Have you wrapped your code with the "<script></script>" tag *inside* this template?

Cheers!

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eCosinus Victor 7 years ago

Hi, I m using
phpStorm 2016.1.2
Build #PS-145.1616, built on May 24, 2016
JRE: 1.8.0_76-release-b198 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o

I' ve tried to unisntall and reinstall it from stratch It's still not working.

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Victor SFCASTS eCosinus 7 years ago

Hm, I'd recommend you to update your PhpStorm to the latest version - as I understand your version isn't the latest one. Probably it helps. If not - try to reset your PhpStorm settings. Actually, they migrate from version to version, so even upgraded PhpStorm will still use your previous settings. So I suppose you need to delete your "Project Settings" and "IDE Settings" - see the https://www.jetbrains.com/h... . Make its backup if you need it.

Btw, could you take a screenshot of opened file in PhpStorm where you doesn't have autocompletion? It helps to understand your case better.

Cheers!

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This course is built on Symfony 3, but most of the concepts apply just fine to newer versions of Symfony.

Symfony 3

What PHP libraries does this tutorial use?

// composer.json
{
    "require": {
        "php": "^7.1.3",
        "symfony/symfony": "3.4.*", // v3.4.49
        "doctrine/orm": "^2.5", // 2.7.5
        "doctrine/doctrine-bundle": "^1.6", // 1.12.13
        "doctrine/doctrine-cache-bundle": "^1.2", // 1.4.0
        "symfony/swiftmailer-bundle": "^2.3", // v2.6.7
        "symfony/monolog-bundle": "^2.8", // v2.12.1
        "symfony/polyfill-apcu": "^1.0", // v1.23.0
        "sensio/distribution-bundle": "^5.0", // v5.0.25
        "sensio/framework-extra-bundle": "^3.0.2", // v3.0.29
        "incenteev/composer-parameter-handler": "^2.0", // v2.1.4
        "composer/package-versions-deprecated": "^1.11", // 1.11.99.4
        "knplabs/knp-markdown-bundle": "^1.4", // 1.9.0
        "doctrine/doctrine-migrations-bundle": "^1.1", // v1.3.2
        "stof/doctrine-extensions-bundle": "^1.2" // v1.3.0
    },
    "require-dev": {
        "sensio/generator-bundle": "^3.0", // v3.1.7
        "symfony/phpunit-bridge": "^3.0", // v3.4.47
        "nelmio/alice": "^2.1", // v2.3.6
        "doctrine/doctrine-fixtures-bundle": "^2.3" // v2.4.1
    }
}

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