3 namespace Drupal\field_test\Plugin\Field\FieldFormatter;
5 use Drupal\Core\Field\FormatterBase;
6 use Drupal\Core\Field\FieldItemListInterface;
7 use Drupal\Core\Form\FormStateInterface;
10 * Plugin implementation of the 'field_test_default' formatter.
13 * id = "field_test_default",
14 * label = @Translation("Default"),
15 * description = @Translation("Default formatter"),
18 * "test_field_with_preconfigured_options"
23 class TestFieldDefaultFormatter extends FormatterBase {
28 public static function defaultSettings() {
30 'test_formatter_setting' => 'dummy test string',
31 ] + parent::defaultSettings();
37 public function settingsForm(array $form, FormStateInterface $form_state) {
38 $element['test_formatter_setting'] = [
39 '#title' => t('Setting'),
40 '#type' => 'textfield',
42 '#default_value' => $this->getSetting('test_formatter_setting'),
51 public function settingsSummary() {
53 $summary[] = t('@setting: @value', ['@setting' => 'test_formatter_setting', '@value' => $this->getSetting('test_formatter_setting')]);
60 public function viewElements(FieldItemListInterface $items, $langcode) {
63 foreach ($items as $delta => $item) {
64 $elements[$delta] = ['#markup' => $this->getSetting('test_formatter_setting') . '|' . $item->value];