public function ViewsFieldFormatter::viewElements in Views field formatter 8

Same name and namespace in other branches

1. 8.2 src/Plugin/Field/FieldFormatter/ViewsFieldFormatter.php \Drupal\views_field_formatter\Plugin\Field\FieldFormatter\ViewsFieldFormatter::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/ViewsFieldFormatter.php, line 251

Class

ViewsFieldFormatter

Class ViewsFieldFormatter.

Namespace

Drupal\views_field_formatter\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $settings = $this
    ->getSettings();
  $cardinality = $items
    ->getFieldDefinition()
    ->getFieldStorageDefinition()
    ->getCardinality();
  if (isset($settings['view']) && !empty($settings['view']) && \mb_strpos($settings['view'], '::') !== FALSE) {
    list($view_id, $view_display) = \explode('::', $settings['view'], 2);
  }
  else {
    return $elements;
  }
  $arguments = $this
    ->getArguments($items, $items[0], 0);

  // If empty views are hidden, execute view to count result.
  if (!empty($settings['hide_empty'])) {
    $view = Views::getView($view_id);
    if (!$view || !$view
      ->access($view_display)) {
      return $elements;
    }

    // We try to reproduce the arguments which will be used below. We cannot
    // just use $this->getArguments($items, $items[0], 0) as this might return
    // items, which for example no longer exist, still you want to show the
    // view when there are more possible entries.
    if ((bool) $settings['multiple'] === TRUE && $cardinality !== 1) {
      if (!empty($settings['implode_character'])) {
        $arguments = $this
          ->getArguments($items, NULL, 0);
      }
    }
    $view
      ->setArguments($arguments);
    $view
      ->setDisplay($view_display);
    $view
      ->preExecute();
    $view
      ->execute();
    if (empty($view->result)) {
      return $elements;
    }
  }
  $elements = [
    '#cache' => [
      'max-age' => 0,
    ],
    [
      '#type' => 'view',
      '#name' => $view_id,
      '#display_id' => $view_display,
      '#arguments' => $arguments,
    ],
  ];
  if ($cardinality !== 1 && (bool) $settings['multiple'] === TRUE) {
    if (empty($settings['implode_character'])) {
      foreach ($items as $delta => $item) {
        $elements[$delta] = [
          '#type' => 'view',
          '#name' => $view_id,
          '#display_id' => $view_display,
          '#arguments' => $this
            ->getArguments($items, $items[$delta], $delta),
        ];
      }
    }
  }
  return $elements;
}