fix: unhide discussion tab when enabling it

openedx/core/djangoapps/discussions/utils.py

@@ -191,3 +191,16 @@ def get_course_division_scheme(course_discussion_settings: CourseDiscussionSetti
     ):
         division_scheme = CourseDiscussionSettings.NONE
     return division_scheme
+
+
+def show_discussion_tab(course_key, user_id: int) -> None:
+    """
+    Toggle the visibility of the discussion tab in the course.
+    """
+    store = modulestore()
+    course = store.get_course(course_key)
+    for tab in course.tabs:
+        if tab.tab_id == 'discussion':
+            tab.is_hidden = False
+            store.update_item(course, user_id)
+            break

openedx/core/djangoapps/discussions/views.py

@@ -21,6 +21,7 @@
     DiscussionsConfigurationSerializer,
     DiscussionsProvidersSerializer,
 )
+from .utils import show_discussion_tab
 
 
 class DiscussionsConfigurationSettingsView(APIView):
@@ -120,8 +121,9 @@ def update_configuration_data(request, course_key_string):
             new_provider_type = serializer.validated_data.get('provider_type', None)
             if new_provider_type is not None and new_provider_type != configuration.provider_type:
                 check_course_permissions(course, request.user, 'change_provider')
-
             serializer.save()
+            if configuration.is_enabled(course_key):
+                show_discussion_tab(course_key, request.user.id)
         return serializer.data