def _i18n_cache_key_suffix(request, cache_key):
"""If necessary, adds the current locale or time zone to the cache key."""
if settings.USE_I18N or settings.USE_L10N:
# first check if LocaleMiddleware or another middleware added
# LANGUAGE_CODE to request, then fall back to the active language
# which in turn can also fall back to settings.LANGUAGE_CODE
cache_key += '.%s' % getattr(request, 'LANGUAGE_CODE', get_language())
if settings.USE_TZ:
# The datetime module doesn't restrict the output of tzname().
# Windows is known to use non-standard, locale-dependant names.
# User-defined tzinfo classes may return absolutely anything.
# Hence this paranoid conversion to create a valid cache key.
tz_name = force_text(get_current_timezone_name(), errors='ignore')
cache_key += '.%s' % tz_name.encode('ascii', 'ignore').decode('ascii').replace(' ', '_')
return cache_key
def tz(request):
from djangocg.utils import timezone
return {'TIME_ZONE': timezone.get_current_timezone_name()}
def render(self, context):
context[self.variable] = timezone.get_current_timezone_name()
return ''
