public function Loader::loadField in Bamboo Twig 8.2

Same name and namespace in other branches

1. 8.5 bamboo_twig_loader/src/TwigExtension/Loader.php \Drupal\bamboo_twig_loader\TwigExtension\Loader::loadField()
2. 8.3 bamboo_twig_loader/src/TwigExtension/Loader.php \Drupal\bamboo_twig_loader\TwigExtension\Loader::loadField()
3. 8.4 bamboo_twig_loader/src/TwigExtension/Loader.php \Drupal\bamboo_twig_loader\TwigExtension\Loader::loadField()

Returns the field object for a single entity field.

Parameters

string $field_name: The field name.

string $entity_type: The entity type.

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

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

Return value

null|Drupal\Core\Field\FieldItemListInterface A field object for the entity or NULL if the value does not exist.

File

bamboo_twig_loader/src/TwigExtension/Loader.php, line 69

Class

Loader

Provides some loaders as Twig Extensions.

Namespace

Drupal\bamboo_twig_loader\TwigExtension

Code

public function loadField($field_name, $entity_type, $id = NULL, $langcode = NULL) {
  $entity = $this
    ->loadEntity($entity_type, $id);
  if ($entity && $langcode && $entity
    ->hasTranslation($langcode)) {
    $entity = $entity
      ->getTranslation($langcode);
  }

  // Ensure the entity has the requested field.
  if (!$entity
    ->hasField($field_name)) {
    return NULL;
  }

  // Do not continue if the field is empty.
  if ($entity
    ->get($field_name)
    ->isEmpty()) {
    return NULL;
  }
  if (isset($entity->{$field_name})) {
    return $entity->{$field_name};
  }
  return NULL;
}