Presale: Add a language switch to the UI

src/pretix/presale/static/pretixpresale/less/main.less

@@ -20,4 +20,13 @@ footer {
 }
 .js-only {
     display: none;
+}
+.locales {
+    display: inline;
+    a {
+        text-decoration: none;
+    }
+    img {
+        vertical-align: baseline;
+    }
 }

src/pretix/presale/templates/pretixpresale/event/base.html

@@ -20,6 +20,17 @@
 <div class="container event">
     <div class="page-header">
         <div class="pull-right loginbox">
+            {% if request.event.settings.locales|length > 1 %}
+                <div class="locales">
+                    {% for l in request.event.settings.locales %}
+                        {% if l != request.LANGUAGE_CODE %}
+                            <a href="{% url "presale:locale.set" %}?locale={{ l }}&next={{ request.path }}%3F{{ request.META.QUERY_STRING|urlencode }}">
+                                <img src="{% static "pretixbase/img/flags" %}/{{ l }}.png" />
+                            </a>
+                        {% endif %}
+                    {% endfor %}
+                </div> &middot;
+            {% endif %}
             {% if request.user.is_authenticated %}
                 {% blocktrans trimmed with name=request.user.identifier %}
                     Hello, {{ name }}!

src/pretix/presale/urls.py

@@ -4,6 +4,7 @@ import pretix.presale.views.event
 import pretix.presale.views.cart
 import pretix.presale.views.checkout
 import pretix.presale.views.order
+import pretix.presale.views.locale
 
 
 urlpatterns = [
@@ -30,4 +31,5 @@ urlpatterns = [
         url(r'^logout$', pretix.presale.views.event.EventLogout.as_view(), name='event.logout'),
         url(r'^orders$', pretix.presale.views.event.EventOrders.as_view(), name='event.orders'),
     ])),
+    url(r'^locale/set$', pretix.presale.views.locale.LocaleSet.as_view(), name='locale.set'),
 ]

src/pretix/presale/views/event.py

@@ -253,7 +253,9 @@ class EventLogin(EventViewMixin, TemplateView):
             if form.is_valid():
                 user = User.objects.create_local_user(
                     request.event, form.cleaned_data['username'], form.cleaned_data['password'],
-                    email=form.cleaned_data['email'] if form.cleaned_data['email'] != '' else None
+                    email=form.cleaned_data['email'] if form.cleaned_data['email'] != '' else None,
+                    locale=request.LANGUAGE_CODE,
+                    timezone=request.timezone if hasattr(request, 'timezone') else None
                 )
                 user = authenticate(identifier=user.identifier, password=form.cleaned_data['password'])
                 login(request, user)
@@ -263,7 +265,9 @@ class EventLogin(EventViewMixin, TemplateView):
             if form.is_valid():
                 user = User.objects.create_global_user(
                     form.cleaned_data['email'], form.cleaned_data['password'],
-                    )
+                    locale=request.LANGUAGE_CODE,
+                    timezone=request.timezone if hasattr(request, 'timezone') else None
+                )
                 user = authenticate(identifier=user.identifier, password=form.cleaned_data['password'])
                 login(request, user)
                 return self.redirect_to_next()

src/pretix/presale/views/locale.py

@@ -0,0 +1,22 @@
+from datetime import datetime, timedelta
+from django.conf import settings
+from django.shortcuts import redirect
+from django.views.generic import View
+
+
+class LocaleSet(View):
+
+    def get(self, request, *args, **kwargs):
+        locale = request.GET.get('locale')
+        resp = redirect(request.GET.get('next', request.META.get('HTTP_REFERER', '/')))
+        if locale in [lc for lc, ll in settings.LANGUAGES]:
+            if request.user.is_authenticated():
+                request.user.locale = locale
+                request.user.save()
+
+            max_age = 10 * 365 * 24 * 60 * 60
+            resp.set_cookie(settings.LANGUAGE_COOKIE_NAME, locale, max_age=max_age,
+                            expires=(datetime.utcnow() + timedelta(seconds=max_age)).strftime(
+                                '%a, %d-%b-%Y %H:%M:%S GMT'),
+                            domain=settings.SESSION_COOKIE_DOMAIN)
+        return resp