Remove legacy message support

aleksis/apps/mensa/templates/mensa/index.html

@@ -2,11 +2,6 @@
 {% load msg_box %}
 
 {% block content %}
-  {% if msg == "success" %}
-    {% msg_box "Der Speiseplan wurde erfolgreich hochgeladen." "success" "check_circle" %}
-  {% elif msg == "delete_success" %}
-    {% msg_box "Der Speiseplan wurde erfolgreich gelöscht." "success" "check_circle" %}
-  {% endif %}
   <script type="text/javascript">
     $('#alert_close').click(function () {
       $("#alert_box").fadeOut("slow", function () {

aleksis/apps/mensa/views.py

@@ -34,17 +34,17 @@ def upload(request):
 @login_required
 @permission_required("mensa.add_menu")
 def delete(request, id):
-    # print(id)
     Menu.objects.get(id=id).delete()
 
-    return redirect("menu_index_msg", msg="delete_success")
+    messages.success(request, _("The menu was deleted successfully."))
+    return redirect("menu_index")
 
 
 @login_required
 @permission_required("menu.add_menu")
-def index(request, msg=None):
+def index(request):
     menus = Menu.objects.all().order_by("calendar_week", "year")
-    return render(request, 'mensa/index.html', {"msg": msg, "menus": menus})
+    return render(request, 'mensa/index.html', {"menus": menus})
 
 
 def return_pdf(filename):