function EntityReferenceItem::storageSettingsForm

Overrides FieldItemBase::storageSettingsForm

File

core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php, line 362

Class

EntityReferenceItem

Defines the 'entity_reference' entity field type.

Namespace

Code

public function storageSettingsForm(array &$form, FormStateInterface $form_state, $has_data) {
    $element['target_type'] = [
        '#type' => 'select',
        '#title' => $this->t('Type of item to reference'),
        '#default_value' => $this->getSetting('target_type'),
        '#required' => TRUE,
        '#disabled' => $has_data,
        '#size' => 1,
    ];
    // Only allow the field to target entity types that have an ID key. This
    // is enforced in ::propertyDefinitions().
    $entity_type_manager = \Drupal::entityTypeManager();
    $filter = function (string $entity_type_id) use ($entity_type_manager) : bool {
        return $entity_type_manager->getDefinition($entity_type_id)
            ->hasKey('id');
    };
    $options = \Drupal::service('entity_type.repository')->getEntityTypeLabels(TRUE);
    foreach ($options as $group_name => $group) {
        $element['target_type']['#options'][$group_name] = array_filter($group, $filter, ARRAY_FILTER_USE_KEY);
    }
    return $element;
}