Chapters

29 Chapters | 1:34:37 |

01

Introduction

1:00
02

ManyToOne Doctrine Relationships

4:40
03

Sharing Data between Fixture Classes

1:49
04

Restricting Edit Access to Owners

1:53
05

Using a shortcut Base Controller Class

2:30
06

Using PHPDoc for Auto-Completion

1:26
07

OneToMany: The Inverse Side of a Relationship

5:37
08

Doctrine Extensions: Sluggable and Timestampable

4:30
09

Using the slug in the Event URL

2:04
10

Adding createdAt and updatedAt Timestampable Fields

1:41
11

Creating a Custom orderBy Query

2:11
12

ManyToMany Relationship

2:37
13

Using the ManyToMany so Users can Attend an Event

4:53
14

More with ManyToMany: Avoiding Duplicates

2:51
15

JSON up in your Response

2:50
16

Come on, Set the Content-Type Header!

3:19
17

Adding the AJAX Touch: JavaScript

2:16
18

Customizing Error Pages and How Errors are Handled

6:01
19

Render another Controller in Twig

4:28
20

Creating a Pretty CSV Download

4:19
21

Your Very First Service

4:42
22

Symfony Overlord: The Service Container

4:58
23

Configuration Loading and Type-Hinting

2:01
24

Dependency Inject All the Things

3:14
25

Twig Extensions and Dependency Injection Tags

4:33
26

Doctrine is in your Lifecycle (with Callbacks)

2:08
27

Doctrine Event Listeners

5:59
28

Doctrine Listeners on Update

2:48
29

Keep Going!

1:19

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07.

OneToMany: The Inverse Side of a Relationship

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5 Comments

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Max S. 8 years ago

Hey!
Why exactly do I need to add the inversedBy attribute? It's kind of strange that it works without it if there are no annotations at the inverse side and you have to add it if you add the annotations... Thanks as always!

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Victor SFCASTS Max S. 8 years ago

Hey Max,

You need the "inversedBy" only when you configure "Bidirectional" relationships, otherwise you will get only "Unidirectional" one. OneToMany Bidirectional relationship means that you can get a collection of related entities from a mapped side and a mapped entity from an inversed side (i.e. get a mapped entity from every entity in a collection).

Cheers!

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BilboBangings 8 years ago

Is it possible to get the objects from $user->getEvents() back in a paginated format?

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weaverryan SFCASTS BilboBangings 8 years ago

Hey!

It's a good question - I can see what you're thining! But basically, the answer is no. I think you *technically* could if you made a clever query that joined from User to events and selected only *some* events, but I'm not sure - I've never tried (http://knpuniversity.com/sc.... Doctrine really wants your User object to always be the same - it would be a little weird if sometimes I called $user->getEvents() and got all the events and other times called $user->getEvents() and only got back *some* events.

So, the best way is to create a custom query for all of the events *for* the User. And actually, most(all) of the pagination libraries (like PagerfantaBundle) want you to pass them a QueryBuilder object, not a final array of Event objects.

Cheers!

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Victor SFCASTS 8 years ago

Thanks for "Owning Versus Inverse Side" excellent explanation, Ryan! It was hard to me to use it correctly. For OneToMany and ManyToOne relations Symfony2 plugin with `app/console doctrine:schema:validate` command helps me fine, but for ManyToMany it was still too difficult. But now it has become clearer!

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Symfony 2

What PHP libraries does this tutorial use?

// composer.json
{
    "require": {
        "php": ">=5.3.3",
        "symfony/symfony": "~2.4", // v2.4.2
        "doctrine/orm": "~2.2,>=2.2.3", // v2.4.2
        "doctrine/doctrine-bundle": "~1.2", // v1.2.0
        "twig/extensions": "~1.0", // v1.0.1
        "symfony/assetic-bundle": "~2.3", // v2.3.0
        "symfony/swiftmailer-bundle": "~2.3", // v2.3.5
        "symfony/monolog-bundle": "~2.4", // v2.5.0
        "sensio/distribution-bundle": "~2.3", // v2.3.4
        "sensio/framework-extra-bundle": "~3.0", // v3.0.0
        "sensio/generator-bundle": "~2.3", // v2.3.4
        "incenteev/composer-parameter-handler": "~2.0", // v2.1.0
        "doctrine/doctrine-fixtures-bundle": "~2.2.0", // v2.2.0
        "ircmaxell/password-compat": "~1.0.3", // 1.0.3
        "phpunit/phpunit": "~4.1", // 4.1.0
        "stof/doctrine-extensions-bundle": "~1.1.0" // v1.1.0
    }
}

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