def set_store(store, key=_store_registry_key, app=None):
"""Sets an instance of :class:`I18nStore` in the app registry.
:param store:
An instance of :class:`I18nStore`.
:param key:
The key used to retrieve the instance from the registry. A default
is used if it is not set.
:param request:
A :class:`webapp3.WSGIApplication` instance used to retrieve the
instance. The active app is used if it is not set.
"""
app = app or webapp3.get_app()
app.registry[key] = store
def get_translations(self, locale):
"""Returns a translation catalog for a locale.
:param locale:
A locale code.
:returns:
A ``babel.support.Translations`` instance, or
``gettext.NullTranslations`` if none was found.
"""
trans = self.translations.get(locale)
if not trans:
locales = (locale, self.default_locale)
trans = self.load_translations(self.translations_path, locales,
self.domains)
if not webapp3.get_app().debug:
self.translations[locale] = trans
return trans
def get_store(factory=I18nStore, key=_store_registry_key, app=None):
"""Returns an instance of :class:`I18nStore` from the app registry.
It'll try to get it from the current app registry, and if it is not
registered it'll be instantiated and registered. A second call to this
function will return the same instance.
:param factory:
The callable used to build and register the instance if it is not yet
registered. The default is the class :class:`I18nStore` itself.
:param key:
The key used to store the instance in the registry. A default is used
if it is not set.
:param app:
A :class:`webapp3.WSGIApplication` instance used to store the instance.
The active app is used if it is not set.
"""
app = app or webapp3.get_app()
store = app.registry.get(key)
if not store:
store = app.registry[key] = factory(app)
return store
