Integration with a Symfony Workflow component

[fre5h]

Symfony Workflow component appeared in version 3.2. It is the implementation of the state machine. As ENUM fields in database often used for keeping some readable statuses, so it would be nice to add state machine over these types in PHP.
I am not sure if this integration is possible. But want to investigate.

[kubaceg]

It will be really nice feature :) 👍

[kubaceg]

Ok It's possible. In workflow configuration You must indicate Your custom marking store:

marking_store:
    service: App\Service\MarkingStore

And here is code of this class

<?php
/**
 * @author Jakub Cegiełka <kuba.ceg@gmail.com>
 */

namespace App\Service;

use App\Entity\Offer\OfferStatus;
use Symfony\Component\PropertyAccess\PropertyAccess;
use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
use Symfony\Component\Workflow\Marking;
use Symfony\Component\Workflow\MarkingStore\MarkingStoreInterface;

class MarkingStore implements MarkingStoreInterface
{
    private $property;
    private $propertyAccessor;

    /**
     * @param string                         $property
     * @param PropertyAccessorInterface|null $propertyAccessor
     */
    public function __construct($property = 'status', PropertyAccessorInterface $propertyAccessor = null)
    {
        $this->property = $property;
        $this->propertyAccessor = $propertyAccessor ?: PropertyAccess::createPropertyAccessor();
    }

    /**
     * {@inheritdoc}
     */
    public function getMarking($subject)
    {
        $placeName = $this->propertyAccessor->getValue($subject, $this->property);
        $placeName = OfferStatus::getReadableValue($placeName);

        if (!$placeName) {
            return new Marking();
        }

        return new Marking(array($placeName => 1));
    }

    /**
     * {@inheritdoc}
     */
    public function setMarking($subject, Marking $marking)
    {
        $value = key($marking->getPlaces());
        $placeValue = OfferStatus::getChoices()[$value];

        $this->propertyAccessor->setValue($subject, $this->property, $placeValue);
    }
}

As You see in constructor I've indicated column name with our enum type (property arg). If there (in wolkflow component) will be possibility to select column with our field this service can be automated. At this moment it's not possible.