public function TwigExtension::drupalField in Twig Tweak 8

Same name and namespace in other branches

1. 8.2 src/TwigExtension.php \Drupal\twig_tweak\TwigExtension::drupalField()

Returns the render array for a single entity field.

Parameters

string $field_name: The field name.

string $entity_type: The entity type.

mixed $id: The ID of the entity to render.

string $view_mode: (optional) The view mode that should be used to render the field.

string $langcode: (optional) Language code to load translation.

Return value

null|array A render array for the field or NULL if the value does not exist.

File

src/TwigExtension.php, line 199

Class

TwigExtension

Twig extension with some useful functions and filters.

Namespace

Drupal\twig_tweak

Code

public function drupalField($field_name, $entity_type, $id = NULL, $view_mode = 'default', $langcode = NULL) {

  /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
  $entity = $id ? \Drupal::entityTypeManager()
    ->getStorage($entity_type)
    ->load($id) : \Drupal::routeMatch()
    ->getParameter($entity_type);
  if ($entity) {
    $access = $this
      ->entityAccess($entity);
    if ($access
      ->isAllowed()) {
      if ($langcode && $entity
        ->hasTranslation($langcode)) {
        $entity = $entity
          ->getTranslation($langcode);
      }
      if (isset($entity->{$field_name})) {
        $build = $entity->{$field_name}
          ->view($view_mode);
        CacheableMetadata::createFromRenderArray($build)
          ->merge(CacheableMetadata::createFromObject($access))
          ->merge(CacheableMetadata::createFromObject($entity))
          ->applyTo($build);
        return $build;
      }
    }
  }
}