function empty_fields_entity_display_build_alter in Empty fields 8

Implements hook_entity_display_build_alter().

File

./empty_fields.module, line 103

Contains the implementation for the empty_fields module.

Code

function empty_fields_entity_display_build_alter(&$build, $context) {

  /** @var \Drupal\Core\Entity\FieldableEntityInterface $entity */
  $entity = $context['entity'];

  /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display */
  $display = $context['display'];

  /** @var \Drupal\empty_fields\EmptyFieldsPluginManager $manager */
  $manager = \Drupal::service('plugin.manager.empty_fields');
  foreach (Element::children($build) as $field_name) {
    if ($entity
      ->get($field_name)
      ->isEmpty() && $entity->{$field_name}
      ->access('view') && ($formatter = $display
      ->getRenderer($field_name)) && ($handler = $formatter
      ->getThirdPartySetting('empty_fields', 'handler', ''))) {
      $configuration = $formatter
        ->getThirdPartySetting('empty_fields', 'settings', []);

      /** @var \Drupal\empty_fields\EmptyFieldPluginInterface $plugin */
      $plugin = $manager
        ->createInstance($handler, $configuration);
      $definition = $entity
        ->get($field_name)
        ->getFieldDefinition();
      $component = $display
        ->getComponent($field_name);
      $build[$field_name] = [
        '#theme' => 'field',
        '#title' => $definition
          ->getLabel(),
        '#label_display' => $component['label'],
        '#view_mode' => $context['view_mode'],
        '#language' => $entity
          ->get($field_name)
          ->getLangcode(),
        '#field_name' => $definition
          ->getName(),
        '#field_type' => 'string',
        '#field_translatable' => $definition
          ->isTranslatable(),
        '#entity_type' => $entity
          ->getEntityTypeId(),
        '#bundle' => $entity
          ->bundle(),
        '#object' => $entity,
        '#items' => [
          (object) [
            '_attributes' => [],
          ],
        ],
        '#is_multiple' => FALSE,
        '#attributes' => [
          'class' => [
            'empty-fields',
            "empty-fields__{$handler}",
          ],
        ],
        // Use simple formatter.
        '#formatter' => 'string',
        '0' => $plugin
          ->react($context),
      ] + $build[$field_name];
    }
  }
}