Implements Drupal\field\Plugin\Type\Formatter\FormatterInterface::settingsForm().
Overrides FormatterBase::settingsSummary
public function settingsSummary() {
$summary = array();
$summary[] = $this
->numberFormat(1234.123456789);
if ($this
->getSetting('prefix_suffix')) {
$summary[] = t('Display with prefix and suffix.');
}
return implode('<br />', $summary);
}