smoke test the rest of the apps

physics/views.py

@@ -75,10 +75,18 @@ from loguru import logger
 class AuthorOrCheckerRequiredMixin(object):
     def get_object(self, *args, **kwargs):
         obj = super().get_object(*args, **kwargs)
+        if self.request.user.is_superuser:
+            return obj
         if self.request.user.groups.filter(name="physics_checker").exists():
             return obj
-        if self.request.user not in obj.author.all():
-            raise PermissionDenied()  # or Http404
+        if hasattr(obj, "author"):
+            if self.request.user not in obj.author.all():
+                raise PermissionDenied()
+        elif hasattr(obj, "user"):
+            if self.request.user != obj.user:
+                raise PermissionDenied()
+        else:
+            raise PermissionDenied()
         return obj