ConfigurableLanguageManager::updateLockedLanguageWeights

public ConfigurableLanguageManager::updateLockedLanguageWeights()

public function updateLockedLanguageWeights() {
  // Get the weight of the last configurable language.
  $configurable_languages = $this->getLanguages(LanguageInterface::STATE_CONFIGURABLE);
  $max_weight = end($configurable_languages)->getWeight();

  $locked_languages = $this->getLanguages(LanguageInterface::STATE_LOCKED);
  // Update locked language weights to maintain the existing order, if
  // necessary.
  if (reset($locked_languages)->getWeight() <= $max_weight) {
    foreach ($locked_languages as $language) {
      // Update system languages weight.
      $max_weight++;
      ConfigurableLanguage::load($language->getId())
        ->setWeight($max_weight)
        ->save();
    }
  }
}