public function FileSizeFormatter::viewElements in File Entity (fieldable files) 8.2

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/FileSizeFormatter.php, line 34

Class

FileSizeFormatter

Implementation of the 'filesize' formatter for the file_entity files.

Namespace

Drupal\file_entity\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $files = [
    $items
      ->getEntity(),
  ];

  // Early opt-out if the field is empty.
  if (empty($files)) {
    return $elements;
  }
  foreach ($files as $delta => $file) {
    $elements[$delta] = [
      '#markup' => format_size($file
        ->getSize(), $file
        ->language()
        ->getId()),
    ];
  }
  return $elements;
}