fix AnonymousUser permissions

lectures/templates/lectures/view_lecture.html

@@ -44,6 +44,7 @@
         {% endif %}
     </div>
 
+    {% if user.is_authenticated %}
         <script>
             window.isRegistered = {% if user|is_registered:lecture %}
                 true
@@ -51,6 +52,7 @@
                 false
             {% endif %};
         </script>
+    {% endif %}
 
     <div class="flex flex-col gap-2 my-4 py-4 border-y border-gray-200">
         <div class="flex justify-between gap-2 text-lg text-gray-600">

lectures/views.py

@@ -79,7 +79,10 @@ def get_lectures(request, filter=None, get_exceptions: bool = True) -> tuple:
                 )
             )
             & (
+                (
                     models.Q(user_groups__in=request.user.groups.all())
+                    | models.Q(user_groups=None)
+                )
                 if not request.user.is_superuser
                 else models.Q(id__isnull=False)  # Always True
             )
@@ -136,7 +139,10 @@ def view_group_lectures(request, group_id: int):
     group_id_exists = group.exists()
 
     if not request.user.is_superuser:
-        group = group.filter(models.Q(user_groups__in=request.user.groups.all()))
+        group = group.filter(
+            models.Q(user_groups__in=request.user.groups.all())
+            | models.Q(user_groups=None)
+        )
 
     if not group.exists():
         if not group_id_exists:  # Doesn't exist at all