Add region setting to supplement localization (#1875)

src/pretix/helpers/countries.py

@@ -1,8 +1,9 @@
 from django.core.cache import cache
-from django.utils.translation import get_language
 from django_countries import Countries
 from django_countries.fields import CountryField
 
+from pretix.base.i18n import get_language_without_region
+
 
 class CachedCountries(Countries):
     _cached_lists = {}
@@ -14,7 +15,7 @@ class CachedCountries(Countries):
         django-countries performs a unicode-aware sorting based on pyuca which is incredibly
         slow.
         """
-        cache_key = "countries:all:{}".format(get_language())
+        cache_key = "countries:all:{}".format(get_language_without_region())
         if self.cache_subkey:
             cache_key += ":" + self.cache_subkey
         if cache_key in self._cached_lists:

src/pretix/helpers/formats/en_US/formats.py

@@ -0,0 +1,18 @@
+# Date according to https://docs.djangoproject.com/en/dev/ref/templates/builtins/#date
+SHORT_DATE_FORMAT = 'm/d/Y'
+SHORT_DATETIME_FORMAT = 'm/d/Y P'
+TIME_FORMAT = 'P'
+WEEK_FORMAT = '\\W W, o'
+WEEK_DAY_FORMAT = 'D, M jS'
+
+DATE_INPUT_FORMATS = [
+    '%m/%d/%Y',
+    '%Y-%m-%d',
+    '%m/%d/%y',
+]
+TIME_INPUT_FORMATS = [
+    '%I:%M %p',
+    '%H:%M:%S',  # '14:30:59'
+    '%H:%M:%S.%f',  # '14:30:59.000200'
+    '%H:%M',  # '14:30'
+]

src/pretix/helpers/i18n.py

@@ -126,6 +126,7 @@ def get_javascript_format_without_seconds(format_name):
 
 def get_moment_locale(locale=None):
     cur_lang = locale or translation.get_language()
+    cur_lang = cur_lang.lower()
     if cur_lang in moment_locales:
         return cur_lang
     if '-' in cur_lang or '_' in cur_lang: