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

Buy Access to Course

21.

Deleting an Item from a Collection: orphanRemoval

|

Autoplay

Keep on Learning!

If you liked what you've learned so far, dive in! Subscribe to get
access to this tutorial plus video, code and script downloads.

Start your All-Access Pass

Buy just this tutorial for $12.00

Previous Chapter

Next Chapter

With a Subscription, click any sentence in the script to jump to that part of the video!

Login Subscribe

Login or register to check out the script

10 Comments

Sort By

Login or Register to join the conversation

Tavo 7 years ago

Which doctrine annotation should I use if I really wanted to assign a $genusScientist to another $genus instead of completely removing it from the database? Thanks.

|

Victor SFCASTS Tavo 7 years ago

Gey Gustavo,

I'm not sure Doctrine has such annotation :) How will Doctrine know to whom assign it? It's only possible to set genus to NULL on deleting. I *think* you can add a listener to listen to preRemove event and implement a custom logic in it to assign it to another Genus.

Cheers!

1 |

Tavo Victor 7 years ago

Thank you very much for your response. What I was referring to wasn't to assign the $genusScientist to another $genus when performing the delete action. I just want to free the $genusScientist so that another $genus can add it from the edit action, for example. When I use OrphanRemoval the $genusScientist is completely removed, so if a different $genus wants to add it, it needs to re-enter all the $ genusScientist information again. I apologize for my English, I'm learning it too.

1 |

Tavo Victor 7 years ago

but you have given me the answer. In the $genusScientist entity, I only have to write *@ORM\JoinColumn(nullable=true) in the field $genus, and that's it! again, thank you very much for your time

|

Hank 8 years ago

I get an error when I added 'by_reference' =>false to the GenusFormType

->add('genusScientists', CollectionType::class, [
'entry_type' => GenusScientistEmbeddedForm::class,
'allow_delete' => true,
'by_reference' =>false
])

CRITICAL - Uncaught PHP Exception Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException: "Neither the property "genusScientists" nor one of the methods "addGenusScientist()"/"removeGenusScientist()", "setGenusScientists()", "genusScientists()", "__set()" or "__call()" exist and have public access in class "AppBundle\Entity\Genus"." at /var/www/aqua_note/vendor/symfony/symfony/src/Symfony/Component/PropertyAccess/PropertyAccessor.php line 614

The genus entity has the method:

public function removeGenusScientist(GenusScientist $genusScientist)
{
if (!$this->genusScientists->contains($genusScientist)) {
return;
}

$this->genusScientists->removeElement($genusScientist);
// Needed to update the owning site of the relationship
$genusScientist->setGenus(null);
}

What could be wrong?

|

MolloKhan SFCASTS Hank 8 years ago edited

Hey Hank!

Do you also have the method "addGenusScientist()"? you need both if you are going the "remove" way, instead of using a setter

Cheers!

|

Hank MolloKhan 8 years ago

Hi Diego, You were right again I made a typo in the addGenusScientist() and typed addGenusScientists() with an extra s at the end. Thanks!

|

MolloKhan SFCASTS Hank 8 years ago

NP!

I'm glad to hear you could fix your problem :)

Cheers!

|

Tony C 8 years ago

This solution to remove a genusScientist from the Genus will only remove ONE genusScientist when the form is submitted, regardless of how many you removed from the form.

|

weaverryan SFCASTS Tony C 8 years ago edited

Hey Tony C!

Are you sure? I just backed up my code to this exact step in the tutorial and tried it - I removed 4 genus scientists of the 7 on a page and saved - all 4 I selected were removed. Are you seeing something different?

Cheers!

|

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
    }
}

Previous Chapter

Next Chapter