Instance state type

InstanceStateType.php

<?php

namespace AppBundle\Persistence\Types;

use AppBundle\State\Instance\InstancePaused;
use AppBundle\State\Instance\InstanceRemoved;
use AppBundle\State\Instance\InstanceRunning;
use AppBundle\State\Instance\InstanceStates;
use Doctrine\DBAL\Types\Type;
use Doctrine\DBAL\Platforms\AbstractPlatform;

class InstanceStateType extends Type
{
    const INSTANCE_STATE = 'instance_state';

    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
    {
        return "ENUM('" . $this->getCommaSeparatedStates() . "') COMMENT '(DC2Type:" . self::INSTANCE_STATE  . ")'";
    }

    public function convertToPHPValue($value, AbstractPlatform $platform)
    {
        switch ($value) {
            case InstanceStates::STATE_REMOVED:
                return new InstanceRemoved();
            case InstanceStates::STATE_PAUSED:
                return new InstancePaused();
            case InstanceStates::STATE_RUNNING:
                return new InstanceRunning();
        }
    }

    public function convertToDatabaseValue($value, AbstractPlatform $platform)
    {
        return $value->getName();
    }

    public function getName()
    {
        return self::INSTANCE_STATE;
    }

    private function getCommaSeparatedStates()
    {
        return implode("', '", InstanceStates::toArray());
    }
}