public function FormatterBase::viewElements in Facebook Instant Articles 3.x

Same name and namespace in other branches

1. 8.2 src/Plugin/Field/FieldFormatter/FormatterBase.php \Drupal\fb_instant_articles\Plugin\Field\FieldFormatter\FormatterBase::viewElements()

Builds a renderable array for a field value.

Parameters

\Drupal\Core\Field\FieldItemListInterface $items: The field values to be rendered.

string $langcode: The language that should be used to render the field.

Return value

array A renderable array for $items, as an array of child elements keyed by consecutive numeric indexes starting from 0.

Overrides FormatterInterface::viewElements

File

src/Plugin/Field/FieldFormatter/FormatterBase.php, line 21

Class

FormatterBase

Base class for all of our FBIA field formatters.

Namespace

Drupal\fb_instant_articles\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {

  // Do nothing. Our field formatters are unique in that they are not meant
  // to generate HTML on their own, but only signal to the Serialization API
  // the fate of this field in the FBIA document.
  return [];
}