/**
  * {@inheritdoc}
  */
 public function submitForm(array &$form, FormStateInterface $form_state)
 {
     // Save the submitted entry.
     $entry = array('nickname' => $form_state->getValue('nickname'), 'firstname' => $form_state->getValue('firstname'), 'lastnames' => $form_state->getValue('lastnames'));
     $return = EAPeopleStorage::insert($entry);
     if ($return) {
         // Add pid to form values to allow other modules to implement their own submit handlers.
         $form_state->setvalue('pid', $return);
         drupal_set_message(t('Added @nickname @firstname @lastnames', array('@nickname' => $entry['nickname'], '@firstname' => $entry['firstname'], '@lastnames' => $entry['lastnames'])));
     }
 }