- drupal_set_message("ajax_forms_test_validation_number_form_callback invoked");
- drupal_set_message(t("Callback: drivernumber=%drivernumber, spare_required_field=%spare_required_field", ['%drivernumber' => $form_state->getValue('drivernumber'), '%spare_required_field' => $form_state->getValue('spare_required_field')]));
+ \Drupal::messenger()->addStatus("ajax_forms_test_validation_number_form_callback invoked");
+ \Drupal::messenger()->addStatus(t("Callback: drivernumber=%drivernumber, spare_required_field=%spare_required_field", ['%drivernumber' => $form_state->getValue('drivernumber'), '%spare_required_field' => $form_state->getValue('spare_required_field')]));