Apigility + Doctrine + ManyToMany

insert.json

{
  "scopes": [1, 2, 4, 5, 6, 7]
}

module.config.php

<?php

return array(
    'service_manager' => array(
        'invokables' => array(
            'mynamespace.v1.extract.scopes' => 'MyNamespace\\V1\\Rest\\OauthScopes\\OauthScopesStrategy',
        ),
    ),
    'doctrine-hydrator' => array(
        'MyNamespace\\V1\\Rest\\Usuario\\UsuarioHydrator' => array(
            'entity_class' => 'MyNamespace\\V1\\Entity\\Usuario',
            'object_manager' => 'doctrine.entitymanager.orm_default',
            'by_value' => true,
            'strategies' => array(
                'scopes' => 'mynamespace.v1.extract.scopes',
            ),
            'use_generated_hydrator' => true,
        ),
    )
);

OauthScopes.php

<?php

namespace MyNamespace\V1\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * OauthScopes
 *
 * @ORM\Table(name="oauth_scopes")
 * @ORM\Entity
 */
class OauthScopes
{

    /**
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     * @ORM\Column(type="integer")
     */
    protected $id;

    /**
     * @var string
     *
     * @ORM\Column(name="scope", type="string", length=2000, nullable=false)
     */
    protected $scope;

    /**
     * @var string
     *
     * @ORM\Column(name="client_id", type="string", length=80, nullable=false)
     */
    protected $clientId;

    /**
     * @var string
     *
     * @ORM\Column(name="type", type="string", length=255, nullable=false)
     */
    protected $type = 'supported';

    /**
     * @var integer
     *
     * @ORM\Column(name="is_default", type="smallint", nullable=true)
     */
    protected $isDefault;

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

    public function setId($id)
    {
        $this->id = $id;
        return $this;
    }

    public function getScope()
    {
        return $this->scope;
    }

    public function getClientId()
    {
        return $this->clientId;
    }

    public function getType()
    {
        return $this->type;
    }

    public function getIsDefault()
    {
        return $this->isDefault;
    }

    public function setScope($scope)
    {
        $this->scope = $scope;
        return $this;
    }

    public function setClientId($clientId)
    {
        $this->clientId = $clientId;
        return $this;
    }

    public function setType($type)
    {
        $this->type = $type;
        return $this;
    }

    public function setIsDefault($isDefault)
    {
        $this->isDefault = $isDefault;
        return $this;
    }
}

OauthScopesStrategy.php

<?php

namespace MyNamespace\V1\Rest\OauthScopes;

use DoctrineModule\Stdlib\Hydrator\Strategy\AbstractCollectionStrategy;
use DoctrineModule\Stdlib\Hydrator\DoctrineObject;
use DoctrineModule\Persistence\ObjectManagerAwareInterface;
use Doctrine\Common\Persistence\ObjectManager;

class OauthScopesStrategy extends AbstractCollectionStrategy implements ObjectManagerAwareInterface
{

    /**
     *
     * @var \Doctrine\ORM\EntityManager
     */
    protected $objectManager;

    public function extract($value)
    {
        $hydrator = new DoctrineObject($this->getObjectManager());
        $results = [];
        if (is_array($value)) {
            foreach ($value as $item) {
                $results[] = $hydrator->extract($item);
            }
        }
        return $results;
    }

    public function hydrate($value)
    {
        $object = $this->getObject();
        if(method_exists($object, 'setScopes')){
            $object->setScopes($value);
        }
        return $value;
    }

    public function getObjectManager()
    {
        return $this->objectManager;
    }

    public function setObjectManager(ObjectManager $objectManager)
    {
        $this->objectManager = $objectManager;
        return $this;
    }
}

Usuario.php

<?php

namespace MyNamespace\V1\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/** 
 * @ORM\Entity 
 */
class Usuario
{

    /**
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     * @ORM\Column(type="integer")
     */
    protected $id;

    /**
     * @ORM\ManyToMany(targetEntity="OauthScopes")
     * @var OauthScopes
     */
    protected $scopes;

    public function __construct()
    {
        $this->scopes = new ArrayCollection();
    }

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

    public function setId($id)
    {
        $this->id = $id;
        return $this;
    }

    public function addScope(OauthScopes $scope)
    {
        $this->scopes[] = $scope;
        return $this;
    }

    /**
     * 
     * @return OauthScopes
     */
    public function getScopes()
    {
        return $this->scopes->getValues();
    }

    public function setScopes($scopes)
    {
        $this->scopes = $scopes;
        return $this;
    }
}