/**
  * Builds a row for an entity in the entity listing.
  *
  * @param \Drupal\migrate\Entity\EntityInterface $migration
  *   The entity for which to build the row.
  *
  * @return array
  *   A render array of the table row for displaying the entity.
  *
  * @see Drupal\Core\Entity\EntityListController::render()
  */
 public function buildRow(EntityInterface $migration)
 {
     $row['label'] = $migration->label();
     $row['machine_name'] = $migration->id();
     $row['status'] = $migration->getStatusLabel();
     // Derive the stats
     $source_plugin = $migration->getSourcePlugin();
     $row['total'] = $source_plugin->count();
     $map = $migration->getIdMap();
     $row['imported'] = $map->importedCount();
     // -1 indicates uncountable sources.
     if ($row['total'] == -1) {
         $row['total'] = $this->t('N/A');
         $row['unprocessed'] = $this->t('N/A');
     } else {
         $row['unprocessed'] = $row['total'] - $map->processedCount();
     }
     $migration_group = $migration->getThirdPartySetting('migrate_plus', 'migration_group');
     if (!$migration_group) {
         $migration_group = 'default';
     }
     $route_parameters = array('migration_group' => $migration_group, 'migration' => $migration->id());
     $row['messages'] = array('data' => array('#type' => 'link', '#title' => $map->messageCount(), '#url' => Url::fromRoute("migrate_tools.messages", $route_parameters)));
     $migrate_last_imported_store = \Drupal::keyValue('migrate_last_imported');
     $last_imported = $migrate_last_imported_store->get($migration->id(), FALSE);
     if ($last_imported) {
         /** @var DateFormatter $date_formatter */
         $date_formatter = \Drupal::service('date.formatter');
         $row['last_imported'] = $date_formatter->format($last_imported / 1000, 'custom', 'Y-m-d H:i:s');
     } else {
         $row['last_imported'] = '';
     }
     return $row;
     // + parent::buildRow($migration);
 }
  /**
   * {@inheritdoc}
   */
  public function view(EntityInterface $entity, $view_mode = 'full', $langcode = NULL) {
    if ($entity->status()) {
      $message = $this->contactMessageStorage->create([
        'contact_form' => $entity->id(),
      ]);

      $form = $this->entityFormBuilder->getForm($message);
      $form['#title'] = $entity->label();
      $form['#cache']['contexts'][] = 'user.permissions';

      $this->renderer->addCacheableDependency($form, $this->config);
    }
    else {
      // Form disabled, display a custom message using a template.
      $form['disabled_form_error'] = array(
        '#theme' => 'contact_storage_disabled_form',
        '#contact_form' => $entity,
        '#redirect_uri' => $entity->getThirdPartySetting('contact_storage', 'redirect_uri', ''),
        '#disabled_form_message' => $entity->getThirdPartySetting('contact_storage', 'disabled_form_message', t('This contact form has been disabled.')),
      );
    }
    // Add required cacheability metadata from the contact form entity, so that
    // changing it invalidates the cache.
    $this->renderer->addCacheableDependency($form, $entity);
    return $form;
  }