protected function ParagraphsClassicAsymmetricWidget::createDuplicateWithSingleLanguage in Paragraphs asymmetric translation widgets 8

Clones a paragraph recursively.

Also, in case of a translatable paragraph, updates its original language and removes all other translations.

Parameters

\Drupal\paragraphs\ParagraphInterface $paragraph: The paragraph entity to clone.

string $langcode: Language code for all the clone entities created.

Return value

\Drupal\paragraphs\ParagraphInterface New paragraph object with the data from the original paragraph. Not saved. All sub-paragraphs are clones as well.

1 call to ParagraphsClassicAsymmetricWidget::createDuplicateWithSingleLanguage()

ParagraphsClassicAsymmetricWidget::formElement in src/Plugin/Field/FieldWidget/ParagraphsClassicAsymmetricWidget.php

Uses a similar approach to populate a new translation.

File

src/Plugin/Field/FieldWidget/ParagraphsClassicAsymmetricWidget.php, line 748

Class

ParagraphsClassicAsymmetricWidget

Plugin implementation of the 'paragraphs_classic_asymmetric' widget.

Namespace

Drupal\paragraphs_asymmetric_translation_widgets\Plugin\Field\FieldWidget

Code

protected function createDuplicateWithSingleLanguage(ParagraphInterface $paragraph, $langcode) {
  $duplicate = $paragraph
    ->createDuplicate();

  // Clone all sub-paragraphs recursively.
  foreach ($duplicate
    ->getFields(FALSE) as $field) {

    // @todo: should we support field collections as well?
    if ($field
      ->getFieldDefinition()
      ->getType() == 'entity_reference_revisions' && $field
      ->getFieldDefinition()
      ->getTargetEntityTypeId() == 'paragraph') {
      foreach ($field as $item) {
        $item->entity = $this
          ->createDuplicateWithSingleLanguage($item->entity, $langcode);
      }
    }
  }

  // Change the original language and remove possible translations.
  if ($duplicate
    ->isTranslatable()) {
    $duplicate
      ->set('langcode', $langcode);
    foreach ($duplicate
      ->getTranslationLanguages(FALSE) as $language) {
      try {
        $duplicate
          ->removeTranslation($language
          ->getId());
      } catch (\InvalidArgumentException $e) {

        // Should never happen.
      }
    }
  }
  return $duplicate;
}