class MigrationSubscriber in Simplenews 8

Create a simplenews field on relevant content types.

Since simplenews configuration on a node is stored as a field, it has to be added explicitly during a migration. This listener checks if the node type is a simplenews content type and adds the field.

Hierarchy

• class \Drupal\simplenews\EventSubscriber\MigrationSubscriber implements \Symfony\Component\EventDispatcher\EventSubscriberInterface

1 string reference to 'MigrationSubscriber'

simplenews.services.yml in ./simplenews.services.yml

simplenews.services.yml

1 service uses MigrationSubscriber

simplenews.migration_subscriber in ./simplenews.services.yml

Drupal\simplenews\EventSubscriber\MigrationSubscriber

File

src/EventSubscriber/MigrationSubscriber.php, line 19

Namespace

Drupal\simplenews\EventSubscriber

class MigrationSubscriber implements EventSubscriberInterface {

  /**
   * The entity field manager.
   *
   * @var \Drupal\Core\Entity\EntityFieldManagerInterface
   */
  protected $entityFieldManager;

  /**
   * Constructs a new migration subscriber.
   *
   * @param \Drupal\Core\Entity\EntityFieldManagerInterface $entityFieldManager
   *   The entity field manager service.
   */
  public function __construct(EntityFieldManagerInterface $entityFieldManager) {
    $this->entityFieldManager = $entityFieldManager;
  }

  /**
   * Create simplenews field if applicable.
   *
   * @param \Drupal\migrate\Event\MigratePostRowSaveEvent $event
   *   The event object.
   */
  public function onMigrationPostRowSave(MigratePostRowSaveEvent $event) {
    if (!$event
      ->getRow()
      ->getSourceProperty('simplenews_content_type')) {
      return;
    }
    $node_type = reset($event
      ->getDestinationIdValues());
    $fields = $this->entityFieldManager
      ->getFieldDefinitions('node', $node_type);
    if (isset($fields['simplenews_issue'])) {
      return;
    }

    // If checked and the field does not exist yet, create it.
    $field_storage = FieldStorageConfig::loadByName('node', 'simplenews_issue');
    $field = FieldConfig::create([
      'field_storage' => $field_storage,
      'label' => t('Issue'),
      'bundle' => $node_type,
      'translatable' => TRUE,
    ]);
    $field
      ->save();

    // Set the default widget.
    entity_get_form_display('node', $node_type, 'default')
      ->setComponent($field
      ->getName())
      ->save();
  }

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    $return = [];
    if (class_exists('\\Drupal\\migrate\\Event\\MigrateEvents')) {
      $return[MigrateEvents::POST_ROW_SAVE][] = 'onMigrationPostRowSave';
    }
    return $return;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
MigrationSubscriber::$entityFieldManager	protected	property	The entity field manager.
MigrationSubscriber::getSubscribedEvents	public static	function	Returns an array of event names this subscriber wants to listen to.
MigrationSubscriber::onMigrationPostRowSave	public	function	Create simplenews field if applicable.
MigrationSubscriber::__construct	public	function	Constructs a new migration subscriber.