language_configuration_element_submit

language_configuration_element_submit(&$form, FormStateInterface $form_state)

function language_configuration_element_submit(&$form, FormStateInterface $form_state) {
  // Iterate through all the language_configuration elements and save their
  // values.
  // In case we are editing a bundle, we must check the new bundle name,
  // because e.g. hook_ENTITY_update fired before.
  if ($language = $form_state->get('language')) {
    foreach ($language as $element_name => $values) {
      $entity_type_id = $values['entity_type'];
      $bundle = $values['bundle'];
      $form_object = $form_state->getFormObject();
      if ($form_object instanceof EntityFormInterface) {
        /** @var EntityFormInterface $form_object */
        $entity = $form_object->getEntity();
        if ($entity->getEntityType()->getBundleOf()) {
          $bundle = $entity->id();
          $language[$element_name]['bundle'] = $bundle;
        }
      }
      $config = ContentLanguageSettings::loadByEntityTypeBundle($entity_type_id, $bundle);
      $config->setDefaultLangcode($form_state->getValue(array($element_name, 'langcode')));
      $config->setLanguageAlterable($form_state->getValue(array($element_name, 'language_alterable')));
      $config->save();

      // Set the form_state languaged with the updated bundle.
      $form_state->set('language', $language);
    }
  }
}