def get_negotiated_language(request):
""" This function returns a Language from database that
best matches one of those requested by the client.
If a match cannot be found, it simply returns the first
language available
"""
# Get all the registered and enabled languages of the system.
available = [str(locale)
for locale in Language.get_locales(request.db_session,
enabled=True)]
# Get client preferred languages.
preferred = [str(locale) for locale in request.accepted_locales]
# Choose the best one.
negotiated = Locale.negotiate(preferred, available)
if negotiated is None:
lang = available[0][:2]
else:
lang = negotiated.language
return Language.get_by_lang(request.db_session, lang)
def test_get_locales(self):
languages = [
Language(id=1, lang=u'it', country=u'IT', enabled=True),
Language(id=2, lang=u'en', country=u'GB', enabled=True),
Language(id=3, lang=u'es', country=u'ES', enabled=True),
Language(id=4, lang=u'de', country=u'DE', enabled=False),
Language(id=5, lang=u'fr', country=u'FR', enabled=False),
Language(id=6, lang=u'ru', country=u'RU', enabled=False),
Language(id=7, lang=u'zh', country=u'CN', enabled=False)]
for language in languages:
self.session.add(language)
self.session.commit()
enabled_locales = []
for language in Language.get_locales(self.session, enabled=True):
enabled_locales.append(language)
enabled_strict_locales = []
for language in Language.get_locales(self.session, enabled=True,
strict=True):
enabled_strict_locales.append(language)
disabled_locales = []
for language in Language.get_locales(self.session, enabled=False):
disabled_locales.append(language)
disabled_strict_locales = []
for language in Language.get_locales(self.session, enabled=False,
strict=True):
disabled_strict_locales.append(language)
all_locales = []
for language in Language.get_locales(self.session):
all_locales.append(language)
all_strict_locales = []
for language in Language.get_locales(self.session, strict=True):
all_strict_locales.append(language)
for language in languages:
full_locale = Locale(language.lang.lower(),
language.country.upper())
lang_locale = Locale(language.lang.lower())
if language.enabled:
self.assertIn(full_locale, enabled_locales)
self.assertIn(lang_locale, enabled_locales)
self.assertIn(full_locale, enabled_strict_locales)
self.assertNotIn(lang_locale, enabled_strict_locales)
else:
self.assertIn(full_locale, disabled_locales)
self.assertIn(lang_locale, disabled_locales)
self.assertIn(full_locale, disabled_strict_locales)
self.assertNotIn(lang_locale, disabled_strict_locales)
self.assertIn(full_locale, all_locales)
self.assertIn(lang_locale, all_locales)
self.assertIn(full_locale, all_strict_locales)
self.assertNotIn(lang_locale, all_strict_locales)
