docker/main/requirements.txt

@@ -1,4 +1,4 @@
-Django>=4.0,<5.0
+Django>=3.0,<4.0
 psycopg2>=2.8
 mysqlclient>=1.4.3
 django_compressor>=2.2

gawa/gawa/settings.py

@@ -63,6 +63,7 @@ MIDDLEWARE = [
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'django.middleware.locale.LocaleMiddleware',
+    'start.middleware.LangBasedOnUrlMiddleware',
 ]
 
 ROOT_URLCONF = 'gawa.urls'

gawa/gawa/urls.py

@@ -21,7 +21,7 @@ from django.conf import settings
 from django.conf.urls.static import static
 
 urlpatterns = [
-    re_path('i18n/', include('django.conf.urls.i18n')),
+    re_path(r'^i18n/', include('django.conf.urls.i18n')),
 ] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
 
 urlpatterns += i18n_patterns(

gawa/start/middleware.py

@@ -0,0 +1,26 @@
+from django.shortcuts import HttpResponse, HttpResponseRedirect
+from django.utils import translation
+from django.conf import settings
+from django.utils.deprecation import MiddlewareMixin
+from django.utils.regex_helper import re
+from .forms import MainSearchForm
+from .views import MainSearch
+
+
+class LangBasedOnUrlMiddleware(MiddlewareMixin):
+    """
+    used for switching the language
+    """
+    @staticmethod
+    def process_request(request):
+
+        if hasattr(request, 'session'):
+            active_session_lang = request.session.get(
+                translation.LANGUAGE_SESSION_KEY)
+
+            if active_session_lang == request.LANGUAGE_CODE:
+                return
+
+            if any(request.LANGUAGE_CODE in language for language in settings.LANGUAGES):
+                translation.activate(request.LANGUAGE_CODE)
+                request.session[translation.LANGUAGE_SESSION_KEY] = request.LANGUAGE_CODE

gawa/start/templates/nav.html

@@ -1,108 +1,62 @@
 {% load i18n %}
+{% load helper_tags %}
 <nav class="sticky-top navbar navbar-expand-lg navbar-dark bg-dark">
     <div class="container-fluid">
         <a class="navbar-brand" href="{% url 'start:index' %}">
-            <img src="https://static.cscherr.de/images/profile/profile-margin.png"
+            <img src="https://static.cscherr.de/images/profile/profile-margin.png" alt="Logo" height="30" class="d-inline-block align-text-top">
-                 alt="Logo"
-                 height="30"
-                 class="d-inline-block align-text-top">
             {% translate "cscherr.de" noop %}
         </a>
-        <button class="navbar-toggler"
+        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
-                type="button"
-                data-bs-toggle="collapse"
-                data-bs-target="#navbarSupportedContent"
-                aria-controls="navbarSupportedContent"
-                aria-expanded="false"
-                aria-label="Toggle navigation">
             <span class="navbar-toggler-icon"></span>
         </button>
         <div class="collapse navbar-collapse" id="navbarSupportedContent">
             <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                 <li class="nav-item dropdown">
-                    <a class="nav-link dropdown-toggle"
+                    <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
-                       href="#"
+                        {% translate "Start" %}
-                       role="button"
+                    </a>
-                       data-bs-toggle="dropdown"
-                       aria-expanded="false">{% translate "Start" %}</a>
                     <ul class="dropdown-menu">
-                        <li>
+                        <li><a class="dropdown-item" href="{% url 'start:index' %}">{% translate "Start" %}</a></li>
-                            <a class="dropdown-item" href="{% url 'start:index' %}">{% translate "Start" %}</a>
+                        <li><a class="dropdown-item" href="{% url 'start:professional' %}">{% translate "Professionell" %}</a></li>
-                        </li>
+                        <li><a class="dropdown-item" href="{% url 'start:links' %}">{% translate "Links" %}</a></li>
-                        <li>
+                        <li><hr class="dropdown-divider"></li>
-                            <a class="dropdown-item" href="{% url 'start:professional' %}">{% translate "Professionell" %}</a>
+                        <li><a class="dropdown-item" href="{% url 'start:legal' %}">{% translate "Legal Info" %}</a></li>
-                        </li>
-                        <li>
-                            <a class="dropdown-item" href="{% url 'start:links' %}">{% translate "Links" %}</a>
-                        </li>
-                        <li>
-                            <hr class="dropdown-divider">
-                        </li>
-                        <li>
-                            <a class="dropdown-item" href="{% url 'start:legal' %}">{% translate "Legal Info" %}</a>
-                        </li>
                     </ul>
                 </li>
                 <li class="nav-item dropdown">
-                    <a class="nav-link dropdown-toggle"
+                    <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
-                       href="#"
+                        {% translate "Blog" %}
-                       role="button"
+                    </a>
-                       data-bs-toggle="dropdown"
-                       aria-expanded="false">{% translate "Blog" %}</a>
                     <ul class="dropdown-menu">
-                        <li>
+                        <li><a class="dropdown-item" href="{% url 'blog:index' %}">{% translate "Start" %}</a></li>
-                            <a class="dropdown-item" href="{% url 'blog:index' %}">{% translate "Start" %}</a>
+                        <li><a class="dropdown-item" href="{% url 'blog:browse' %}">{% translate "Browse" %}</a></li>
-                        </li>
-                        <li>
-                            <a class="dropdown-item" href="{% url 'blog:browse' %}">{% translate "Browse" %}</a>
-                        </li>
                     </ul>
                 </li>
                 <li class="nav-item dropdown">
-                    <a class="nav-link dropdown-toggle"
+                    <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
-                       href="#"
+                        Debug
-                       role="button"
+                    </a>
-                       data-bs-toggle="dropdown"
-                       aria-expanded="false">Debug</a>
                     <ul class="dropdown-menu">
-                        <li>
+                        <li><a class="dropdown-item" href="http://localhost:8080" target="_blank">DB</a></li>
-                            <a class="dropdown-item" href="http://localhost:8080" target="_blank">DB</a>
+                        <li><a class="dropdown-item" href="{% url 'admin:index' %}" target="_blank">Admin</a></li>
-                        </li>
+                        <li><hr class="dropdown-divider"></li>
-                        <li>
+                        <li><a class="dropdown-item" href="#">Something else here</a></li>
-                            <a class="dropdown-item" href="{% url 'admin:index' %}" target="_blank">Admin</a>
-                        </li>
-                        <li>
-                            <hr class="dropdown-divider">
-                        </li>
-                        <li>
-                            <a class="dropdown-item" href="#">Something else here</a>
-                        </li>
                     </ul>
                 </li>
                 <li class="nav-item dropdown">
-                    {% get_current_language as LANGUAGE_CODE %}
+                    {% get_available_languages as languages %}
-                    <form action="{% url 'set_language' %}" method="post">
+                    <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
-                        {% csrf_token %}
+                        {{ LANGUAGE_CODE }}
-                        {% get_current_language as LANGUAGE_CODE %}
+                    </a>
-                        {% get_available_languages as LANGUAGES %}
+                    <ul class="dropdown-menu">
-                        {% get_language_info_list for LANGUAGES as languages %}
+                        {% for lang_code, lang_name in languages %}
-                        <input name="next" type="hidden" value="{{ redirect_to }}">
+                        <li><a class="dropdown-item"
-                        <a class="nav-link dropdown-toggle"
+                               href="{% change_lang lang_code %}">
-                           href="#"
+                                {{ lang_name }}</a></li>
-                           role="button"
+                        {% endfor %}
-                           data-bs-toggle="dropdown"
+                        <li><hr class="dropdown-divider"></li>
-                           aria-expanded="false">{{ LANGUAGE_CODE }}</a>
+                        <li><a class="dropdown-item" href="#">Something else here</a></li>
-                        <ul class="dropdown-menu">
+                    </ul>
-                            {% for language in languages %}
-                                <li>
-                                    <input class="dropdown-item"
-                                           type="submit"
-                                           name="language"
-                                           value="{{ language.code }}">
-                                </li>
-                            {% endfor %}
-                        </ul>
-                    </form>
                 </li>
                 <li class="nav-item">
                     <button type="button" class="btn btn-dark" id="toggleThemeButton">

gawa/start/templatetags/helper_tags.py

@@ -13,3 +13,31 @@ register = Library()
 @register.simple_tag
 def format_time(timestamp: datetime, format: str = "%F %H:%M:%S %Z") -> str:
     return timestamp.strftime(format)
+
+@register.simple_tag(takes_context=True)
+def change_lang(context, lang="de", *args, **kwargs):
+    """
+    Get active page's url by a specified language
+    Usage: {% change_lang 'en' %}
+
+    shamelessly stolen from stackoverflow:
+    https://stackoverflow.com/a/41147772
+    """
+    logger = logging.getLogger(__name__)
+
+    try:
+        path = context['request'].get_raw_uri()
+        url = path
+        try:
+            cur_lang: str = get_language()
+            url = re.sub(f"/{cur_lang}/", f"/{lang}/", url)
+
+        except Exception as e:
+            logger.error(f"exception while building language switcher form: {e}")
+            logger.debug(f"this is the context: {context}")
+
+        finally:
+            activate(lang)
+            return "%s" % url
+    except Exception as e:
+        logger.error(f"passing error chain: {e}")

gawa/start/urls.py

@@ -9,4 +9,6 @@ urlpatterns = [
     path("legal/", views.LegalInfo.as_view(), name="legal"),
     path("links/", views.Links.as_view(), name="links"),
     path("professional/", views.LegalInfo.as_view(), name="professional"),
+    path('language/activate/<language_code>/',
+         views.ActivateLanguage.as_view(), name='activate_language'),
 ]

gawa/start/views.py

@@ -8,7 +8,6 @@ from django.shortcuts import render
 from django.views.generic.list import QuerySet
 from django.db.models import Q
 from django.views.static import loader
-from django.views import i18n
 from requests import request
 
 from .forms import MainSearchForm
@@ -58,6 +57,22 @@ class LegalInfo(TemplateView, SearchableView):
     # TODO
     template_name: str = "start/legalinfo.html"
 
+
+class ActivateLanguage(View):
+    """
+    Set the language to whatever
+    """
+    language_code = ''
+    redirect_to = ''
+
+    def get(self, request, *args, **kwargs):
+        self.redirect_to = request.META.get('HTTP_REFERER')
+        self.language_code = kwargs.get('language_code')
+        translation.activate(self.language_code)
+        request.session[translation.LANGUAGE_SESSION_KEY] = self.language_code
+        return redirect(self.redirect_to)
+
+
 class MainSearch(ListView):
     """
     Search for anything.