improve exam group management

physics/views.py

@@ -47,6 +47,7 @@ from generic.views import (
     ExamCloneMixin,
     ExamCreateBase,
     ExamDeleteBase,
+    ExamGroupsUpdateBase,
     ExamUpdateBase,
     ExamViews,
     GenericViewBase,
@@ -58,7 +59,7 @@ from rest_framework.pagination import PageNumberPagination
 
 from django.core.exceptions import PermissionDenied
 
-from .forms import ExamMarkerForm, UserAnswerForm, ExamAuthorForm, ExamForm
+from .forms import ExamGroupsForm, ExamMarkerForm, UserAnswerForm, ExamAuthorForm, ExamForm
 from .decorators import (
     user_is_author_or_physics_checker,
     user_is_exam_author_or_physics_checker,
@@ -367,6 +368,11 @@ class ExamMarkersUpdate(
 
     template_name = "markers_form.html"
 
+
+class ExamGroupsUpdate(ExamGroupsUpdateBase):
+    model = Exam
+    form_class = ExamGroupsForm
+
 class QuestionView(
     LoginRequiredMixin, SingleTableMixin, FilterView, AuthorOrCheckerRequiredMixin
 ):