function ConfigurableLanguageManager::getLanguages

Overrides LanguageManager::getLanguages

File

core/modules/language/src/ConfigurableLanguageManager.php, line 279

Class

ConfigurableLanguageManager

Overrides default LanguageManager to provide configured languages.

Namespace

Code

public function getLanguages($flags = LanguageInterface::STATE_CONFIGURABLE) {
    // If a config override is set, cache using that language's ID.
    if ($override_language = $this->getConfigOverrideLanguage()) {
        $static_cache_id = $override_language->getId();
    }
    else {
        $static_cache_id = $this->getCurrentLanguage()
            ->getId();
    }
    if (!isset($this->languages[$static_cache_id][$flags])) {
        // Initialize the language list with the default language and default
        // locked languages. These cannot be removed. This serves as a fallback
        // list if this method is invoked while the language module is installed
        // and the configuration entities for languages are not yet fully
        // imported.
        $default = $this->getDefaultLanguage();
        $languages = [
            $default->getId() => $default,
        ];
        $languages += $this->getDefaultLockedLanguages($default->getWeight());
        // Load configurable languages on top of the defaults. Ideally this could
        // use the entity API to load and instantiate ConfigurableLanguage
        // objects. However the entity API depends on the language system, so that
        // would result in infinite loops. We use the configuration system
        // directly and instantiate runtime Language objects. When language
        // entities are imported those cover the default and locked languages, so
        // site-specific configuration will prevail over the fallback values.
        // Having them in the array already ensures if this is invoked in the
        // middle of importing language configuration entities, the defaults are
        // always present.
        $config_ids = $this->configFactory
            ->listAll('language.entity.');
        foreach ($this->configFactory
            ->loadMultiple($config_ids) as $config) {
            $data = $config->get();
            $data['name'] = $data['label'];
            $languages[$data['id']] = new Language($data);
        }
        Language::sort($languages);
        // Filter the full list of languages based on the value of $flags.
        $this->languages[$static_cache_id][$flags] = $this->filterLanguages($languages, $flags);
    }
    return $this->languages[$static_cache_id][$flags];
}