WebformSubmissionHandler.php in Acquia Content Hub 8.2

Namespace

Drupal\acquia_contenthub\EventSubscriber\Cdf

File

src/EventSubscriber/Cdf/WebformSubmissionHandler.php

<?php

namespace Drupal\acquia_contenthub\EventSubscriber\Cdf;

use Drupal\acquia_contenthub\AcquiaContentHubEvents;
use Drupal\acquia_contenthub\Event\SerializeAdditionalMetadataEvent;
use Drupal\acquia_contenthub\Event\UnserializeAdditionalMetadataEvent;
use Drupal\webform\WebformSubmissionInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**
 * The Webform submission entity handler.
 *
 * @see \Drupal\acquia_contenthub\Event\SerializeAdditionalMetadataEvent
 * @see \Drupal\acquia_contenthub\Event\UnserializeAdditionalMetadataEvent
 */
class WebformSubmissionHandler implements EventSubscriberInterface {

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    $events[AcquiaContentHubEvents::SERIALIZE_ADDITIONAL_METADATA][] = [
      'onSerializeWebformElements',
      100,
    ];
    $events[AcquiaContentHubEvents::UNSERIALIZE_ADDITIONAL_METADATA][] = [
      'onUnserializeWebformElements',
      100,
    ];
    return $events;
  }

  /**
   * Serialize webform elements for webform submission entity.
   *
   * @param \Drupal\acquia_contenthub\Event\SerializeAdditionalMetadataEvent $event
   *   Serialize event for additional metadata.
   */
  public function onSerializeWebformElements(SerializeAdditionalMetadataEvent $event) {
    $entity = $event
      ->getEntity();

    // Bail early if this isn't a webform submission entity.
    if (!$entity instanceof WebformSubmissionInterface) {
      return;
    }
    $cdf = $event
      ->getCdf();
    $metadata = $cdf
      ->getMetadata();

    // Get webform elements data.
    $webform_elements = $entity
      ->getData();
    if ($webform_elements) {
      $metadata['additional_data']['webform_elements'] = base64_encode(json_encode($webform_elements));
      $cdf
        ->setMetadata($metadata);
      $event
        ->setCdf($cdf);
    }
    $event
      ->stopPropagation();
  }

  /**
   * Unserialize webform elements from webform submission CDF.
   *
   * @param \Drupal\acquia_contenthub\Event\UnserializeAdditionalMetadataEvent $event
   *   Unserialize event for additional metadata.
   */
  public function onUnserializeWebformElements(UnserializeAdditionalMetadataEvent $event) {
    $cdf = $event
      ->getCdf();

    // Bail early if this isn't a webform submission entity.
    if ($cdf
      ->getAttribute('entity_type')
      ->getValue()['und'] !== 'webform_submission') {
      return;
    }

    /** @var \Drupal\webform\WebformSubmissionInterface $entity */
    $entity = $event
      ->getEntity();
    $metadata = $cdf
      ->getMetadata();

    // Get webform elements data.
    $webform_elements = json_decode(base64_decode($metadata['additional_data']['webform_elements']), TRUE);
    if (is_array($webform_elements)) {
      $entity
        ->setData($webform_elements);
      $event
        ->setEntity($entity);
    }
    $event
      ->stopPropagation();
  }

}

Classes

Name	Description
WebformSubmissionHandler	The Webform submission entity handler.