function layout_paragraphs_paragraph_presave in Layout Paragraphs 1.0.x

Same name and namespace in other branches

1. 2.0.x layout_paragraphs.module \layout_paragraphs_paragraph_presave()

Implements hook_ENTITY_presave().

Updates references to parent layout section uuids in cases where paragraphs are duplicated, for example when using the Replicate module.

@todo Consider changing approach if this issue is addressed in core: https://www.drupal.org/project/drupal/issues/3040556 (It is not possible to react to an entity being duplicated)

File

./layout_paragraphs.module, line 94

Contains layout_paragraphs.module.

Code

function layout_paragraphs_paragraph_presave(Paragraph $paragraph) {
  $behavior_settings = $paragraph
    ->getAllBehaviorSettings();
  $layout_paragraphs_settings = $behavior_settings['layout_paragraphs'] ?? [];
  if (!empty($layout_paragraphs_settings['parent_uuid']) && ($parent = $paragraph
    ->getParentEntity())) {
    $parent_field = $paragraph
      ->get('parent_field_name');
    $field_name = $parent_field
      ->first()
      ->getString();
    $item_list = $parent
      ->get($field_name);

    /** @var \Drupal\Core\Field\EntityReferenceFieldItemList $item_list */
    $sibling_paragraphs = $item_list
      ->referencedEntities();
    if (count($sibling_paragraphs)) {
      $uuid_map = [];
      foreach ($sibling_paragraphs as $delta => $item) {
        $uuid_map[$item
          ->uuid()] = $delta;
      }
      $parent_delta = $uuid_map[$layout_paragraphs_settings['parent_uuid']] ?? NULL;

      // If the parent layout section is correctly referenced via
      // parent_uuid, save the parent delta so we can correctly map
      // uuids using the delta if content is duplicated.
      if (isset($parent_delta)) {
        $layout_paragraphs_settings['parent_delta'] = $parent_delta;
      }
      elseif (isset($layout_paragraphs_settings['parent_delta'], $sibling_paragraphs[$layout_paragraphs_settings['parent_delta']])) {
        $updated_parent_uuid = $sibling_paragraphs[$layout_paragraphs_settings['parent_delta']]
          ->uuid();
        $layout_paragraphs_settings['parent_uuid'] = $updated_parent_uuid;
      }

      // Since paragraph::preSave() has already been called,
      // we have to set the serialized behavior settings directly
      // rather than using setBehaviorSettings().
      $behavior_settings['layout_paragraphs'] = $layout_paragraphs_settings;
      $paragraph
        ->set('behavior_settings', serialize($behavior_settings));
    }
  }
}