2. Installation

2.1. Prerequisites

There are some Sonata dependencies that need to be installed and configured beforehand.

Optional dependencies:

And the persistence bundle (choose one):

Follow also their configuration step; you will find everything you need in their own installation chapter.

Note

If a dependency is already installed somewhere in your project or in another dependency, you won’t need to install it again.

2.2. Enable the Bundle

Add SonataClassificationBundle via composer:

composer require sonata-project/classification-bundle

Next, be sure to enable the bundles in your config/bundles.php file if they are not already enabled:

// config/bundles.php

return [
    // ...
    Sonata\ClassificationBundle\SonataClassificationBundle::class => ['all' => true],
];

3. Configuration

3.1. SonataClassificationBundle Configuration

# config/packages/sonata_classification.yaml

sonata_classification:
    class:
        tag: App\Entity\SonataClassificationTag
        category: App\Entity\SonataClassificationCategory
        collection: App\Entity\SonataClassificationCollection
        context: App\Entity\SonataClassificationContext

3.2. Doctrine ORM Configuration

Add these bundles in the config mapping definition (or enable auto_mapping):

# config/packages/doctrine.yaml

doctrine:
    orm:
        entity_managers:
            default:
                mappings:
                    SonataClassificationBundle: ~

And then create the corresponding entities, src/Entity/SonataClassificationTag:

// src/Entity/SonataClassificationTag.php

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Sonata\ClassificationBundle\Entity\BaseTag;

#[ORM\Entity]
#[ORM\Table(name: 'classification__tag')]
class SonataClassificationTag extends BaseTag
{
    #[ORM\Id]
    #[ORM\Column(type: Types::INTEGER)]
    #[ORM\GeneratedValue]
    protected ?int $id = null;

    public function getId(): ?int
    {
        return $this->id;
    }
}

src/Entity/SonataClassificationCategory:

// src/Entity/SonataClassificationCategory.php

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Sonata\ClassificationBundle\Entity\BaseCategory;

#[ORM\Entity]
#[ORM\Table(name: 'classification__category')]
class SonataClassificationCategory extends BaseCategory
{
    #[ORM\Id]
    #[ORM\Column(type: Types::INTEGER)]
    #[ORM\GeneratedValue]
    protected ?int $id = null;

    public function getId(): ?int
    {
        return $this->id;
    }
}

src/Entity/SonataClassificationCollection:

// src/Entity/SonataClassificationCollection.php

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Sonata\ClassificationBundle\Entity\BaseCollection;

#[ORM\Entity]
#[ORM\Table(name: 'classification__collection')]
class SonataClassificationCollection extends BaseCollection
{
    #[ORM\Id]
    #[ORM\Column(type: Types::INTEGER)]
    #[ORM\GeneratedValue]
    protected ?int $id = null;

    public function getId(): ?int
    {
        return $this->id;
    }
}

and src/Entity/SonataClassificationContext:

// src/Entity/SonataClassificationContext.php

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Sonata\ClassificationBundle\Entity\BaseContext;

#[ORM\Entity]
#[ORM\Table(name: 'classification__context')]
class SonataClassificationContext extends BaseContext
{
    #[ORM\Id]
    #[ORM\Column(type: Types::STRING)]
    protected ?string $id = null;
}

The only thing left is to update your schema:

bin/console doctrine:schema:update --force

3.3. Doctrine MongoDB Configuration

You have to create the corresponding documents, src/Document/SonataClassificationTag:

// src/Document/SonataClassificationTag.php

use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use Sonata\ClassificationBundle\Document\BaseTag;

#[ODM\Document]
class SonataClassificationTag extends BaseTag
{
    #[ODM\Id]
    protected $id;
}

src/Document/SonataClassificationCategory:

// src/Document/SonataClassificationCategory.php

use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use Sonata\ClassificationBundle\Document\BaseCategory;

#[ODM\Document]
class SonataClassificationCategory extends BaseCategory
{
    #[ODM\Id]
    protected $id;
}

src/Document/SonataClassificationCollection:

// src/Document/SonataClassificationCollection.php

use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use Sonata\ClassificationBundle\Document\BaseCollection;

#[ODM\Document]
class SonataClassificationCollection extends BaseCollection
{
    #[ODM\Id]
    protected $id;
}

and src/Document/SonataClassificationContext:

// src/Document/SonataClassificationContext.php

use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use Sonata\ClassificationBundle\Document\BaseContext;

#[ODM\Document]
class SonataClassificationContext extends BaseContext
{
    #[ODM\Id]
    protected $id;
}

And then configure ClassificationBundle to use the newly generated classes:

# config/packages/sonata_classification.yaml

sonata_classification:
    class:
        tag: App\Document\SonataClassificationTag
        category: App\Document\SonataClassificationCategory
        collection: App\Document\SonataClassificationCollection
        context: App\Document\SonataClassificationContext

3.4. Next Steps

At this point, your Symfony installation should be fully functional, without errors showing up from SonataClassificationBundle. If, at this point or during the installation, you come across any errors, don’t panic:

Read the error message carefully. Try to find out exactly which bundle is causing the error. Is it SonataClassificationBundle or one of the dependencies?

Make sure you followed all the instructions correctly, for both SonataClassificationBundle and its dependencies.

Still no luck? Try checking the project’s open issues on GitHub.