public function CshsGroupByRootFormatter::viewElements in Client-side Hierarchical Select 8

Same name and namespace in other branches

1. 8.3 src/Plugin/Field/FieldFormatter/CshsGroupByRootFormatter.php \Drupal\cshs\Plugin\Field\FieldFormatter\CshsGroupByRootFormatter::viewElements()
2. 8.2 src/Plugin/Field/FieldFormatter/CshsGroupByRootFormatter.php \Drupal\cshs\Plugin\Field\FieldFormatter\CshsGroupByRootFormatter::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/CshsGroupByRootFormatter.php, line 24

Class

CshsGroupByRootFormatter

Plugin implementation of the "Group by root" formatter.

Namespace

Drupal\cshs\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) : array {
  $linked = $this
    ->getSetting('linked');
  $reverse = $this
    ->getSetting('reverse');
  $elements = [];
  foreach ($this
    ->getEntitiesToView($items, $langcode) as $delta => $term) {
    $parents = $this
      ->getTermParents($term);
    $parents = $reverse ? \array_reverse($parents) : $parents;
    $root = \array_shift($parents);
    $elements[$root
      ->id()] = [
      '#theme' => 'cshs_term_group',
      '#title' => $this
        ->getTranslationFromContext($root)
        ->label(),
      '#terms' => $this
        ->getTermsLabels($parents, $linked),
    ];
  }
  return $elements;
}