[Backport] fix: adjust gradebook URL to correct value (#38479)

lms/djangoapps/instructor/tests/test_api_v2.py

@@ -119,14 +119,22 @@ def _get_url(self, course_id=None):
             course_id = str(self.course_key)
         return reverse('instructor_api_v2:course_metadata', kwargs={'course_id': course_id})
 
-    @override_settings(COURSE_AUTHORING_MICROFRONTEND_URL='http://localhost:2001/authoring')
-    @override_settings(ADMIN_CONSOLE_MICROFRONTEND_URL='http://localhost:2025/admin-console')
+    @override_settings(
+        COURSE_AUTHORING_MICROFRONTEND_URL='http://localhost:2001/authoring',
+        ADMIN_CONSOLE_MICROFRONTEND_URL='http://localhost:2025/admin-console',
+        # intentionally include trailing slash to test URL joining logic
+        WRITABLE_GRADEBOOK_URL='http://localhost:1994/gradebook/',
+    )
     def test_get_course_metadata_as_instructor(self):
         """
         Test that an instructor can retrieve comprehensive course metadata.
         """
-        self.client.force_authenticate(user=self.instructor)
-        response = self.client.get(self._get_url())
+        with patch(
+            'lms.djangoapps.instructor.views.serializers_v2.is_writable_gradebook_enabled',
+            return_value=True,
+        ):
+            self.client.force_authenticate(user=self.instructor)
+            response = self.client.get(self._get_url())
 
         assert response.status_code == status.HTTP_200_OK
         data = response.data
@@ -176,9 +184,11 @@ def test_get_course_metadata_as_instructor(self):
         assert 'analytics_dashboard_message' in data
         assert 'studio_grading_url' in data
         assert 'admin_console_url' in data
+        assert 'gradebook_url' in data
 
         assert data['studio_grading_url'] == f'http://localhost:2001/authoring/course/{self.course.id}/settings/grading'
         assert data['admin_console_url'] == 'http://localhost:2025/admin-console/authz'
+        assert data['gradebook_url'] == f'http://localhost:1994/gradebook/{self.course.id}'
 
     @override_settings(ADMIN_CONSOLE_MICROFRONTEND_URL='http://localhost:2025/admin-console')
     def test_admin_console_url_requires_instructor_access(self):

lms/djangoapps/instructor/views/serializers_v2.py

@@ -459,9 +459,13 @@ def get_studio_url(self, data):
     def get_gradebook_url(self, data):
         """Get MFE gradebook URL for the course."""
         course_key = data['course'].id
-        if is_writable_gradebook_enabled(course_key) and settings.WRITABLE_GRADEBOOK_URL:
-            return f'{settings.WRITABLE_GRADEBOOK_URL}/gradebook/{course_key}'
-        return None
+        mfe_base_url = configuration_helpers.get_value(
+            'WRITABLE_GRADEBOOK_URL',
+            getattr(settings, 'WRITABLE_GRADEBOOK_URL', None)
+        )
+        if not is_writable_gradebook_enabled(course_key) or not mfe_base_url:
+            return None
+        return f'{mfe_base_url.rstrip("/")}/{course_key}'
 
     def get_studio_grading_url(self, data):
         """Get Studio MFE grading settings URL for the course."""
@@ -472,7 +476,7 @@ def get_studio_grading_url(self, data):
         )
         if not mfe_base_url:
             return None
-        return f'{mfe_base_url}/course/{course_key}/settings/grading'
+        return f'{mfe_base_url.rstrip("/")}/course/{course_key}/settings/grading'
 
     def get_admin_console_url(self, data):
         """Get admin console URL (requires instructor access and MFE configuration, null if not accessible)."""
@@ -486,7 +490,7 @@ def get_admin_console_url(self, data):
         has_permissions = request.user.is_staff or has_instructor_access
         if not mfe_base_url or not has_permissions:
             return None
-        return f'{mfe_base_url}/authz'
+        return f'{mfe_base_url.rstrip("/")}/authz'
 
     def get_disable_buttons(self, data):
         """Check if buttons should be disabled for large courses."""

lms/envs/devstack.py

@@ -278,7 +278,7 @@ def should_show_debug_toolbar(request):  # lint-amnesty, pylint: disable=missing
 ENTERPRISE_ADMIN_PORTAL_BASE_URL = 'http://' + ENTERPRISE_ADMIN_PORTAL_NETLOC
 
 ########################## GRADEBOOK APP ##############################
-WRITABLE_GRADEBOOK_URL = 'http://localhost:1994'
+WRITABLE_GRADEBOOK_URL = 'http://localhost:1994/gradebook'
 
 ########################## ORA STAFF GRADING APP ##############################
 ORA_GRADING_MICROFRONTEND_URL = 'http://localhost:1993'