getLocaleData method

Map<String, String>? getLocaleData(String? locale)

All mappings of locale (with the default locale's underneath when fallbackDefaultLocale is on), or null if locale isn't defined.

Throws NoLocalizedTextException if, with the default-locale fallback, locale has keys the default locale lacks.

Implementation

Map<String, String>? getLocaleData(String? locale) {
  if (locale == null || !_locales.contains(locale)) return null;
  final defaultKeys = <String>{};
  final data = <String, String>{};
  final defaultLocale = _defaultLocale;
  final useDefault = fallbackDefaultLocale && defaultLocale != null;
  if (useDefault) {
    for (final resource in _localeResources[defaultLocale]!) {
      data.addAll(resource.localizedText);
    }
    defaultKeys.addAll(data.keys);
  }
  for (final resource in _localeResources[locale]!) {
    data.addAll(resource.localizedText);
  }
  if (useDefault) {
    final missing = data.keys.where((k) => !defaultKeys.contains(k)).toList();
    if (missing.isNotEmpty) {
      final missingKeys = missing.map((k) => '$k,').join();
      throw NoLocalizedTextException(
        'Error loading locale $locale. There were ${missing.length} keys '
        'which were contained in this locale, but were not properly '
        'registered in the default Locale. Any keys which are added to a '
        'locale should always be added to the default locale to ensure '
        'appropriate functioning.\n'
        'The missing translations were for the keys: $missingKeys',
        missingKeys,
        defaultLocale,
      );
    }
  }
  return data;
}