.

generic/views.py

@@ -172,6 +172,8 @@ class ExamViews(View, LoginRequiredMixin):
             return False
         if self.app_name == "longs" and not user.groups.filter(name='long_checker').exists():
             return False
+        if self.app_name == "physics" and not user.groups.filter(name='physic_checker').exists():
+            return False
         return True
 
 

physics/views.py

@@ -33,6 +33,19 @@ import plotly.express as px
 
 from generic.views import ExamViews
 
+from rest_framework import viewsets, permissions
+from rest_framework.pagination import PageNumberPagination
+
+from django.core.exceptions import PermissionDenied
+
+class AuthorOrCheckerRequiredMixin(object):
+    def get_object(self, *args, **kwargs):
+        obj = super().get_object(*args, **kwargs)
+        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
+        return obj
 
 def question_list(request):
     questions = Question.objects.all()