feat: add is_enrolled field to learners endpoint response

lms/djangoapps/instructor/tests/views/test_api_v2.py

@@ -8,7 +8,7 @@
 from rest_framework import status
 from rest_framework.test import APIClient
 
-from common.djangoapps.student.tests.factories import InstructorFactory, UserFactory
+from common.djangoapps.student.tests.factories import CourseEnrollmentFactory, InstructorFactory, UserFactory
 from lms.djangoapps.courseware.models import StudentModule
 from lms.djangoapps.instructor_task.models import InstructorTask
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
@@ -46,12 +46,30 @@ def test_get_learner_by_username(self):
             'student_id': self.student.id,
         })
 
-        self.assertEqual(response.status_code, status.HTTP_200_OK)  # noqa: PT009
+        assert response.status_code == status.HTTP_200_OK
         data = response.json()
-        self.assertEqual(data['username'], 'john_harvard')  # noqa: PT009
-        self.assertEqual(data['email'], 'john@example.com')  # noqa: PT009
-        self.assertEqual(data['full_name'], 'John Harvard')  # noqa: PT009
-        self.assertEqual(data['progress_url'], expected_progress_url)  # noqa: PT009
+        assert data['username'] == 'john_harvard'
+        assert data['email'] == 'john@example.com'
+        assert data['full_name'] == 'John Harvard'
+        assert data['progress_url'] == expected_progress_url
+        assert not data['is_enrolled']
+
+    def test_get_learner_by_username_enrolled(self):
+        """Test that is_enrolled is true for users enrolled in the course"""
+        CourseEnrollmentFactory(
+            is_active=True,
+            course_id=self.course.id,
+            user=self.student
+        )
+        url = reverse('instructor_api_v2:learner_detail', kwargs={
+            'course_id': str(self.course.id),
+            'email_or_username': self.student.username
+        })
+        response = self.client.get(url)
+
+        assert response.status_code == status.HTTP_200_OK
+        data = response.json()
+        assert data['is_enrolled']
 
     def test_get_learner_by_email(self):
         """Test retrieving learner info by email"""

lms/djangoapps/instructor/views/api_v2.py

@@ -1684,7 +1684,8 @@ class LearnerView(DeveloperErrorViewMixin, APIView):
         "username": "john_harvard",
         "email": "john@example.com",
         "full_name": "John Harvard",
-        "progress_url": "https://example.com/courses/course-v1:edX+DemoX+Demo_Course/progress/john_harvard/"
+        "progress_url": "https://example.com/courses/course-v1:edX+DemoX+Demo_Course/progress/42/",
+        "is_enrolled": true
     }
     ```
     """
@@ -1754,6 +1755,7 @@ def get(self, request, course_id, email_or_username):
             'email': student.email,
             'full_name': student.profile.name,
             'progress_url': progress_url,
+            'is_enrolled': CourseEnrollment.is_enrolled(student, course_key),
         }
 
         serializer = LearnerSerializer(learner_data)

lms/djangoapps/instructor/views/serializers_v2.py

@@ -761,6 +761,9 @@ class LearnerSerializer(serializers.Serializer):
         required=False,
         help_text="URL to learner's progress page"
     )
+    is_enrolled = serializers.BooleanField(
+        help_text="Whether the learner has an active enrollment in the course"
+    )
 
 
 class GraderSerializer(serializers.Serializer):