/**
* {@inheritdoc}
*/
protected function getConfigNamesToDelete(ConfigEntityInterface $entity)
{
/** @var \Drupal\field\FieldStorageConfigInterface $field_storage */
$field_storage = $entity->getFieldStorageDefinition();
$config_names = [$entity->getConfigDependencyName()];
// If there is only one bundle left for this field storage, it will be
// deleted too, notify the user about dependencies.
if (count($field_storage->getBundles()) <= 1) {
$config_names[] = $field_storage->getConfigDependencyName();
}
return $config_names;
}
