Add region setting to supplement localization (#1875)

src/pretix/control/forms/event.py

@@ -19,9 +19,7 @@ from pytz import common_timezones, timezone
 
 from pretix.base.channels import get_all_sales_channels
 from pretix.base.email import get_available_placeholders
-from pretix.base.forms import (
-    I18nModelForm, PlaceholderValidator, SettingsForm,
-)
+from pretix.base.forms import I18nModelForm, PlaceholderValidator, SettingsForm
 from pretix.base.models import Event, Organizer, TaxRule, Team
 from pretix.base.models.event import EventMetaValue, SubEvent
 from pretix.base.reldate import RelativeDateField, RelativeDateTimeField
@@ -459,6 +457,7 @@ class EventSettingsForm(SettingsForm):
         'presale_start_show_date',
         'locales',
         'locale',
+        'region',
         'show_quota_left',
         'waiting_list_enabled',
         'waiting_list_hours',

src/pretix/control/forms/global_settings.py

@@ -10,11 +10,15 @@ from pretix.base.signals import register_global_settings
 
 
 class GlobalSettingsForm(SettingsForm):
+    auto_fields = [
+        'region'
+    ]
+
     def __init__(self, *args, **kwargs):
         self.obj = GlobalSettingsObject()
         super().__init__(*args, obj=self.obj, **kwargs)
 
-        self.fields = OrderedDict([
+        self.fields = OrderedDict(list(self.fields.items()) + [
             ('footer_text', I18nFormField(
                 widget=I18nTextInput,
                 required=False,

src/pretix/control/forms/organizer.py

@@ -223,6 +223,7 @@ class OrganizerSettingsForm(SettingsForm):
         'giftcard_length',
         'giftcard_expiry_years',
         'locales',
+        'region',
         'event_team_provisioning',
         'primary_color',
         'theme_color_success',