fix: disable unenroll button for paid courses

openedx/features/edly/api/v1/urls.py

@@ -3,6 +3,7 @@
 from openedx.features.edly.api.v1.views.course_enrollments import EdlyCourseEnrollmentViewSet
 from openedx.features.edly.api.v1.views.enrollment_count import EdlyProgramEnrollmentCountViewSet
 from openedx.features.edly.api.v1.views.user_mutisites import MultisitesViewset
+from openedx.features.edly.api.v1.views.user_paid_for_course import UserPaidForCourseViewSet
 from openedx.features.edly.api.v1.views.user_sites import UserSitesViewSet
 
 router = routers.SimpleRouter()
@@ -21,4 +22,10 @@
     base_name='program_enrollment_count',
 )
 
+router.register(
+    r'user_paid_for_course',
+    UserPaidForCourseViewSet,
+    base_name='user_paid_for_course'
+)
+
 urlpatterns = router.urls

openedx/features/edly/api/v1/views/user_paid_for_course.py

@@ -0,0 +1,43 @@
+from opaque_keys import InvalidKeyError
+from opaque_keys.edx.keys import CourseKey
+from rest_framework import viewsets
+from rest_framework.permissions import IsAuthenticated
+
+from common.djangoapps.student.models import CourseEnrollment
+from common.djangoapps.util.json_request import JsonResponse
+
+
+class UserPaidForCourseViewSet(viewsets.ViewSet):
+    """
+    **Use Case**
+
+        Get the status of a user's paid status for a given course.
+
+    **Example Request**
+
+        GET /api/v1/user_paid_for_course/{course_id}
+
+    **GET Parameters**
+
+        * pk: The course id of the course to retrieve the user's paid status for.
+
+    **Response Values**
+
+        If the request is successful, the request returns an HTTP 200 "OK" response.
+
+        The HTTP 200 response has the following values.
+
+        * has_user_paid: True if the user has paid for the course, False otherwise.
+    """
+    permission_classes = [IsAuthenticated]
+
+    def retrieve(self, request, pk=None):
+        """Get the status of a user's paid status for a given course."""
+        try:
+            course_key = CourseKey.from_string(pk)
+            course_enrollment = CourseEnrollment.get_enrollment(request.user, course_key)
+        except InvalidKeyError:
+            return JsonResponse({'has_user_paid': False}, status=406)
+
+        paid_status = course_enrollment.get_order_attribute_value('order_number')
+        return JsonResponse({'has_user_paid': bool(paid_status)}, status=200)