feat: Add basic translation support

src/fellchensammlung/mail.py

@@ -12,8 +12,8 @@ from notfellchen.settings import host
 def mail_admins_new_report(report):
     subject = _("New report")
     for moderator in Member.objects.filter(Q(trust_level=Member.MODERATOR) | Q(trust_level=Member.ADMIN)):
-        greeting = _("Moin,\r\n")
+        greeting = _("Moin,") + "\r\n"
-        new_report_text = "es wurde eine Vermittlung gemeldet.\r\n"
+        new_report_text = _("es wurde eine Vermittlung gemeldet.") + "\r\n"
         if len(report.reported_broken_rules.all()) > 0:
             reported_rules_text = f"Ein Verstoß gegen die folgenden Regeln wurde gemeldet [{', '.join(report.reported_broken_rules.all())}]\r\n"
         else:

src/fellchensammlung/templates/fellchensammlung/header.html

@@ -22,9 +22,26 @@
                     <button type="submit">Ausloggen</button>
                 </form>
             </div>
-            {% else %}
+        {% else %}
             <a href="{% url "django_registration_register" %}">Registrieren</a>
             <a href="{% url "login" %}">Einloggen</a>
         {% endif %}
+
+        <form action="{% url 'change-language' %}" method="post" onchange='this.form.submit()'>
+        {% csrf_token %}
+        <select name="language" onchange='this.form.submit()'>
+            {% get_current_language as LANGUAGE_CODE_CURRENT %}
+            {% get_available_languages as LANGUAGES %}
+            {% for language in LANGUAGES %}
+                <option value="{{ language.0 }}" {% if language.0 == LANGUAGE_CODE_CURRENT %} selected{% endif %}>
+                    {{ language.0|language_name_local }}
+                </option>
+                <!--<option value="{{ language.0 }}" {% if language.0 == LANGUAGE_CODE %} selected{% endif %}>
+            {{ language.0|language_name_local }} ({{ language.0 }})
+        </option>-->
+            {% endfor %}
+        </select>
+        <!--<input type="submit" value={% translate "change" %}>-->
+        </form>
     </div>
 </div>

src/fellchensammlung/urls.py

@@ -47,4 +47,6 @@ urlpatterns = [
     path('accounts/', include('django_registration.backends.activation.urls')),
     path('accounts/', include('django.contrib.auth.urls')),
 
+    path('change-language', views.change_language, name="change-language")
+
 ]

src/fellchensammlung/views.py

@@ -1,6 +1,9 @@
+from django.http import HttpResponseRedirect
 from django.shortcuts import render, redirect
 from django.urls import reverse
+from django.contrib.auth.decorators import login_required
 from .mail import mail_admins_new_report
+from notfellchen import settings
 
 from fellchensammlung.models import AdoptionNotice, MarkdownContent, Animal, Rule, Image, Report, ModerationAction, \
     Member
@@ -15,6 +18,24 @@ def index(request):
     return render(request, 'fellchensammlung/index.html', context=context)
 
 
+def change_language(request):
+    if request.method == 'POST':
+        language_code = request.POST.get('language')
+        if language_code:
+            if language_code != settings.LANGUAGE_CODE and language_code in list(zip(*settings.LANGUAGES))[0]:
+                redirect_path = f'/{language_code}/'
+            elif language_code == settings.LANGUAGE_CODE:
+                redirect_path = '/'
+            else:
+                response = HttpResponseRedirect('/')
+                return response
+            from django.utils import translation
+            translation.activate(language_code)
+            response = HttpResponseRedirect(redirect_path)
+            response.set_cookie(settings.LANGUAGE_COOKIE_NAME, language_code)
+    return response
+
+
 def adoption_notice_detail(request, adoption_notice_id):
     adoption_notice = AdoptionNotice.objects.get(id=adoption_notice_id)
     context = {"adoption_notice": adoption_notice}
@@ -33,6 +54,7 @@ def search(request):
     return render(request, 'fellchensammlung/search.html', context=context)
 
 
+@login_required
 def add_adoption(request):
     if request.method == 'POST':
         form = AdoptionNoticeForm(request.POST, request.FILES)
@@ -45,6 +67,7 @@ def add_adoption(request):
     return render(request, 'fellchensammlung/forms/form_add_adoption.html', {'form': form})
 
 
+@login_required
 def add_animal_to_adoption(request, adoption_notice_id):
     if request.method == 'POST':
         form = AnimalForm(request.POST)

src/locale/de/LC_MESSAGES/django.po

@@ -0,0 +1,315 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: \n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2024-04-12 20:50+0000\n"
+"PO-Revision-Date: 2024-04-12 23:05+0200\n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Poedit 3.4.2\n"
+
+#: build/lib/notfellchen/settings.py:214 src/notfellchen/settings.py:223
+msgid "English"
+msgstr "Englisch"
+
+#: build/lib/notfellchen/settings.py:215 src/notfellchen/settings.py:224
+msgid "German"
+msgstr "Deutsch"
+
+#: src/fellchensammlung/mail.py:13
+msgid "New report"
+msgstr "Neue Meldung"
+
+#: src/fellchensammlung/mail.py:15
+msgid "Moin,"
+msgstr ""
+
+#: src/fellchensammlung/mail.py:16
+msgid "es wurde eine Vermittlung gemeldet."
+msgstr ""
+
+#: src/fellchensammlung/models.py:26
+msgid "Enter a animal species"
+msgstr "Gib die Tierart an"
+
+#: src/fellchensammlung/models.py:27
+msgid "Name"
+msgstr "Name"
+
+#: src/fellchensammlung/models.py:34 src/fellchensammlung/models.py:35
+msgid "Species"
+msgstr "Tierart"
+
+#: src/fellchensammlung/models.py:54 src/fellchensammlung/models.py:82
+#: src/fellchensammlung/models.py:146
+msgid "Description"
+msgstr "Beschreibung"
+
+#: src/fellchensammlung/models.py:62
+msgid "Trusted"
+msgstr "Vertrauenswürdig"
+
+#: src/fellchensammlung/models.py:64
+msgid "Instagram profile"
+msgstr "Instagram Profil"
+
+#: src/fellchensammlung/models.py:65
+msgid "Facebook profile"
+msgstr "Facebook Profil"
+
+#: src/fellchensammlung/models.py:66
+msgid "Fediverse profile"
+msgstr "Fediverse Profil"
+
+#: src/fellchensammlung/models.py:67
+msgid "Website"
+msgstr "Website"
+
+#: src/fellchensammlung/models.py:79
+msgid "Created at"
+msgstr "Veröffentlicht am"
+
+#: src/fellchensammlung/models.py:80
+msgid "Searching for a home since"
+msgstr "Sucht nach einem Zuhause seit"
+
+#: src/fellchensammlung/models.py:84
+msgid "Organization"
+msgstr "Organisation"
+
+#: src/fellchensammlung/models.py:85
+msgid "Link to further information"
+msgstr "Link zur mehr Informationen"
+
+#: src/fellchensammlung/models.py:86
+msgid "Only group adoption"
+msgstr "Ausschließlich Adoption der ganzen Gruppe möglich"
+
+#: src/fellchensammlung/models.py:144
+msgid "Date of birth"
+msgstr "Geburtstag"
+
+#: src/fellchensammlung/models.py:222
+msgid "ID dieses reports"
+msgstr "ID des Reports"
+
+#: src/fellchensammlung/models.py:223
+msgid "ID"
+msgstr "ID"
+
+#: src/fellchensammlung/models.py:273
+msgid "Enter a natural languages name (e.g. English, French, Japanese etc.)."
+msgstr "Gib den Namen einer natürlichen Sprache ein (Detusch, Englisch etc..)"
+
+#: src/fellchensammlung/models.py:279
+msgid ""
+"Enter the language code for this language. For further information see  "
+"http://www.i18nguy.com/unicode/language-identifiers.html"
+msgstr ""
+"Gib den Language Code der Sprache ein. Mehr Informationen: http://www."
+"i18nguy.com/unicode/language-identifiers.html"
+
+#: src/fellchensammlung/models.py:280
+msgid "Language code"
+msgstr ""
+
+#: src/fellchensammlung/models.py:287
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:11
+msgid "Language"
+msgstr "Sprache"
+
+#: src/fellchensammlung/models.py:288
+msgid "Languages"
+msgstr "Sprachen"
+
+#: src/fellchensammlung/models.py:323
+msgid "User"
+msgstr "Nutzer*in"
+
+#: src/fellchensammlung/models.py:325
+msgid "Preferred language"
+msgstr "Bevorzugte Sprache"
+
+#: src/fellchensammlung/models.py:329
+msgid "Member"
+msgstr ""
+
+#: src/fellchensammlung/models.py:330
+msgid "Members"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:7
+msgid "Username"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:8
+msgid "E-Mail"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:13
+msgid "No preferred language set."
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/index.html:5
+msgid "Notfellchen - Vermittlungen finden"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/index.html:6
+msgid ""
+"Alle Tiere brauchen ein liebendes Zuhause. Damit keins vergessen wird gibt "
+"es diese Seite. Entwickelt und betreut von "
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/index.html:8
+msgid "Aktuelle Vermittlungen"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/modqueue.html:5
+msgid "Modqueue"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/modqueue.html:6
+msgid ""
+"Erlaube oder blockiere Vermittlungsanzeigen die bisher noch zurückgehaltemn "
+"werden "
+msgstr ""
+
+#: src/templates/django_registration/activate.html:6
+msgid "Account activation failed"
+msgstr ""
+
+#: src/templates/django_registration/activation_complete.html:5
+msgid "You are now activated. Have fun."
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:2
+msgid "Activate account at"
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:4
+msgid "Activate by clicking this link"
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:5
+msgid "or open the following link in your browser"
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:8
+#, python-format
+msgid "Link is valid for %(expiration_days)s days."
+msgstr ""
+
+#: src/templates/django_registration/activation_email_subject.txt:1
+msgid "Account activation on"
+msgstr ""
+
+#: src/templates/django_registration/activation_failed.html:5
+msgid ""
+"Activation failed. Please send an e-mail to info@notfellchen.org to get an "
+"account."
+msgstr ""
+
+#: src/templates/django_registration/registration_closed.html:5
+msgid "Registration is currently closed."
+msgstr ""
+
+#: src/templates/django_registration/registration_complete.html:5
+msgid "You are now registered. Activation email sent."
+msgstr ""
+
+#: src/templates/django_registration/registration_form.html:10
+msgid "Submit"
+msgstr ""
+
+#: src/templates/django_registration/registration_form.html:13
+#: src/templates/registration/login.html:11
+msgid "You're already logged in."
+msgstr ""
+
+#: src/templates/registration/logged_out.html:5
+msgid "Logged out"
+msgstr ""
+
+#: src/templates/registration/logged_out.html:6
+msgid "Click here to login again."
+msgstr ""
+
+#: src/templates/registration/login.html:7
+msgid "Your username and password didn't match. Please try again."
+msgstr ""
+
+#: src/templates/registration/login.html:13
+msgid "Please login to see this page."
+msgstr ""
+"Bitte logg dich ein oder erstelle einen Account um diese Seite zu sehen."
+
+#: src/templates/registration/login.html:30
+msgid "login"
+msgstr ""
+
+#: src/templates/registration/login.html:34
+msgid "Lost password?"
+msgstr ""
+
+#: src/templates/registration/password_reset_complete.html:5
+msgid "The password has been changed!"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:6
+msgid "Please enter (and confirm) your new password."
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:12
+msgid "New password"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:17
+msgid "Confirm password"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:22
+msgid "Change my password"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:27
+msgid "Password reset failed"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:28
+msgid ""
+"The password reset link was invalid, possibly because it has already been "
+"used. Please request a new password reset."
+msgstr ""
+
+#: src/templates/registration/password_reset_done.html:5
+msgid ""
+"We've emailed you instructions for setting your password. If they haven't "
+"arrived in a few minutes, check your spam folder."
+msgstr ""
+
+#: src/templates/registration/password_reset_email.html:2
+msgid "Someone asked for password reset for your email. Follow the link below:"
+msgstr ""
+
+#: src/templates/registration/password_reset_form.html:10
+msgid "Password reset"
+msgstr ""
+
+#: src/templates/registration/password_reset_form.html:11
+msgid "Provide the e-mail address that is connected with your account"
+msgstr ""
+
+#: src/templates/registration/password_reset_form.html:13
+msgid "Reset"
+msgstr ""

src/locale/en/LC_MESSAGES/django.po

@@ -0,0 +1,311 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2024-04-12 20:50+0000\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#: build/lib/notfellchen/settings.py:214 src/notfellchen/settings.py:223
+msgid "English"
+msgstr ""
+
+#: build/lib/notfellchen/settings.py:215 src/notfellchen/settings.py:224
+msgid "German"
+msgstr ""
+
+#: src/fellchensammlung/mail.py:13
+msgid "New report"
+msgstr ""
+
+#: src/fellchensammlung/mail.py:15
+msgid "Moin,"
+msgstr ""
+
+#: src/fellchensammlung/mail.py:16
+msgid "es wurde eine Vermittlung gemeldet."
+msgstr ""
+
+#: src/fellchensammlung/models.py:26
+msgid "Enter a animal species"
+msgstr ""
+
+#: src/fellchensammlung/models.py:27
+msgid "Name"
+msgstr ""
+
+#: src/fellchensammlung/models.py:34 src/fellchensammlung/models.py:35
+msgid "Species"
+msgstr ""
+
+#: src/fellchensammlung/models.py:54 src/fellchensammlung/models.py:82
+#: src/fellchensammlung/models.py:146
+msgid "Description"
+msgstr ""
+
+#: src/fellchensammlung/models.py:62
+msgid "Trusted"
+msgstr ""
+
+#: src/fellchensammlung/models.py:64
+msgid "Instagram profile"
+msgstr ""
+
+#: src/fellchensammlung/models.py:65
+msgid "Facebook profile"
+msgstr ""
+
+#: src/fellchensammlung/models.py:66
+msgid "Fediverse profile"
+msgstr ""
+
+#: src/fellchensammlung/models.py:67
+msgid "Website"
+msgstr ""
+
+#: src/fellchensammlung/models.py:79
+msgid "Created at"
+msgstr ""
+
+#: src/fellchensammlung/models.py:80
+msgid "Searching for a home since"
+msgstr ""
+
+#: src/fellchensammlung/models.py:84
+msgid "Organization"
+msgstr ""
+
+#: src/fellchensammlung/models.py:85
+msgid "Link to further information"
+msgstr ""
+
+#: src/fellchensammlung/models.py:86
+msgid "Only group adoption"
+msgstr ""
+
+#: src/fellchensammlung/models.py:144
+msgid "Date of birth"
+msgstr ""
+
+#: src/fellchensammlung/models.py:222
+msgid "ID dieses reports"
+msgstr ""
+
+#: src/fellchensammlung/models.py:223
+msgid "ID"
+msgstr ""
+
+#: src/fellchensammlung/models.py:273
+msgid "Enter a natural languages name (e.g. English, French, Japanese etc.)."
+msgstr ""
+
+#: src/fellchensammlung/models.py:279
+msgid ""
+"Enter the language code for this language. For further information see  "
+"http://www.i18nguy.com/unicode/language-identifiers.html"
+msgstr ""
+
+#: src/fellchensammlung/models.py:280
+msgid "Language code"
+msgstr ""
+
+#: src/fellchensammlung/models.py:287
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:11
+msgid "Language"
+msgstr ""
+
+#: src/fellchensammlung/models.py:288
+msgid "Languages"
+msgstr ""
+
+#: src/fellchensammlung/models.py:323
+msgid "User"
+msgstr ""
+
+#: src/fellchensammlung/models.py:325
+msgid "Preferred language"
+msgstr ""
+
+#: src/fellchensammlung/models.py:329
+msgid "Member"
+msgstr ""
+
+#: src/fellchensammlung/models.py:330
+msgid "Members"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:7
+msgid "Username"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:8
+msgid "E-Mail"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/details/detail-member.html:13
+msgid "No preferred language set."
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/index.html:5
+msgid "Notfellchen - Vermittlungen finden"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/index.html:6
+msgid ""
+"Alle Tiere brauchen ein liebendes Zuhause. Damit keins vergessen wird gibt "
+"es diese Seite. Entwickelt und betreut von "
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/index.html:8
+msgid "Aktuelle Vermittlungen"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/modqueue.html:5
+msgid "Modqueue"
+msgstr ""
+
+#: src/fellchensammlung/templates/fellchensammlung/modqueue.html:6
+msgid ""
+"Erlaube oder blockiere Vermittlungsanzeigen die bisher noch zurückgehaltemn "
+"werden "
+msgstr ""
+
+#: src/templates/django_registration/activate.html:6
+msgid "Account activation failed"
+msgstr ""
+
+#: src/templates/django_registration/activation_complete.html:5
+msgid "You are now activated. Have fun."
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:2
+msgid "Activate account at"
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:4
+msgid "Activate by clicking this link"
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:5
+msgid "or open the following link in your browser"
+msgstr ""
+
+#: src/templates/django_registration/activation_email_body.txt:8
+#, python-format
+msgid "Link is valid for %(expiration_days)s days."
+msgstr ""
+
+#: src/templates/django_registration/activation_email_subject.txt:1
+msgid "Account activation on"
+msgstr ""
+
+#: src/templates/django_registration/activation_failed.html:5
+msgid ""
+"Activation failed. Please send an e-mail to info@notfellchen.org to get an "
+"account."
+msgstr ""
+
+#: src/templates/django_registration/registration_closed.html:5
+msgid "Registration is currently closed."
+msgstr ""
+
+#: src/templates/django_registration/registration_complete.html:5
+msgid "You are now registered. Activation email sent."
+msgstr ""
+
+#: src/templates/django_registration/registration_form.html:10
+msgid "Submit"
+msgstr ""
+
+#: src/templates/django_registration/registration_form.html:13
+#: src/templates/registration/login.html:11
+msgid "You're already logged in."
+msgstr ""
+
+#: src/templates/registration/logged_out.html:5
+msgid "Logged out"
+msgstr ""
+
+#: src/templates/registration/logged_out.html:6
+msgid "Click here to login again."
+msgstr ""
+
+#: src/templates/registration/login.html:7
+msgid "Your username and password didn't match. Please try again."
+msgstr ""
+
+#: src/templates/registration/login.html:13
+msgid "Please login to see this page."
+msgstr ""
+
+#: src/templates/registration/login.html:30
+msgid "login"
+msgstr ""
+
+#: src/templates/registration/login.html:34
+msgid "Lost password?"
+msgstr ""
+
+#: src/templates/registration/password_reset_complete.html:5
+msgid "The password has been changed!"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:6
+msgid "Please enter (and confirm) your new password."
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:12
+msgid "New password"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:17
+msgid "Confirm password"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:22
+msgid "Change my password"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:27
+msgid "Password reset failed"
+msgstr ""
+
+#: src/templates/registration/password_reset_confirmation.html:28
+msgid ""
+"The password reset link was invalid, possibly because it has already been "
+"used. Please request a new password reset."
+msgstr ""
+
+#: src/templates/registration/password_reset_done.html:5
+msgid ""
+"We've emailed you instructions for setting your password. If they haven't "
+"arrived in a few minutes, check your spam folder."
+msgstr ""
+
+#: src/templates/registration/password_reset_email.html:2
+msgid "Someone asked for password reset for your email. Follow the link below:"
+msgstr ""
+
+#: src/templates/registration/password_reset_form.html:10
+msgid "Password reset"
+msgstr ""
+
+#: src/templates/registration/password_reset_form.html:11
+msgid "Provide the e-mail address that is connected with your account"
+msgstr ""
+
+#: src/templates/registration/password_reset_form.html:13
+msgid "Reset"
+msgstr ""

src/notfellchen/settings.py

@@ -138,12 +138,13 @@ MIDDLEWARE = [
     # Static file serving & caching
     'whitenoise.middleware.WhiteNoiseMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
+    # Needs to be after SessionMiddleware and before CommonMiddleware
+    'django.middleware.locale.LocaleMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
-    'django.middleware.locale.LocaleMiddleware',
 ]
 
 ROOT_URLCONF = 'notfellchen.urls'
@@ -211,6 +212,7 @@ AUTH_PASSWORD_VALIDATORS = [
 # https://docs.djangoproject.com/en/3.2/topics/i18n/
 
 LANGUAGE_CODE = config.get('locale', 'default', fallback='en')
+LANGUAGE_COOKIE_NAME = "selected-language"
 TIME_ZONE = config.get('locale', 'timezone', fallback='UTC')
 
 USE_I18N = True
@@ -220,7 +222,7 @@ USE_L10N = True
 USE_TZ = True
 
 LANGUAGES = (
-    ('en-us', _('English')),
+    ('en', _('English')),
     ('de', _('German')),
 )
 

src/notfellchen/urls.py

@@ -14,6 +14,7 @@ Including another URLconf
     1. Import the include() function: from django.urls import include, path
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
+from django.conf.urls.i18n import i18n_patterns
 from django.contrib import admin
 from django.urls import include, path
 from django.conf import settings
@@ -21,10 +22,13 @@ from django.conf import settings
 from django.conf.urls.static import static
 
 urlpatterns = [
-    path("", include("fellchensammlung.urls")),
     path('admin/', admin.site.urls),
 ]
 
+urlpatterns += i18n_patterns (
+    path("", include("fellchensammlung.urls")),
+)
+
 if settings.DEBUG:
     urlpatterns += static(settings.MEDIA_URL,
                           document_root=settings.MEDIA_ROOT)