attempt to fix undefined user_answer

services/course-material/src/components/ContentRenderer/moocfi/ExerciseCustomViewBlock/CustomViewIframe.tsx

@@ -91,16 +91,11 @@ const CustomViewIframe: React.FC<React.PropsWithChildren<CustomViewIframeProps>>
         exercise_tasks: submission_data.exercise_tasks.task_gradings
           .filter((grading) => grading.exercise_id == exer.id)
           .map((grading) => {
-            const answer = submission_data.exercise_tasks.task_submissions
-              .filter((sub) => sub.exercise_task_grading_id == grading.id)
-              .sort((a, b) => parseISO(b.created_at).getTime() - parseISO(a.created_at).getTime())
-              .filter(
-                (task_asnwer, index, array) =>
-                  array.findIndex((el) => el.exercise_task_id === task_asnwer.exercise_task_id) ===
-                  index,
-              )[0]
+            const answer = submission_data.exercise_tasks.task_submissions.find(
+              (sub) => sub.exercise_task_grading_id === grading.id,
+            )
             const publicSpec = submission_data.exercise_tasks.exercise_tasks.find(
-              (task) => task.id == grading.exercise_task_id,
+              (task) => task.id === grading.exercise_task_id,
             )?.public_spec
             return {
               task_id: grading.exercise_task_id,

services/headless-lms/models/src/exercise_task_submissions.rs

@@ -507,7 +507,8 @@ pub async fn get_user_exersice_task_submissions_by_course_module_and_exercise_ty
     let res: Vec<CustomViewExerciseTaskSubmission> = sqlx::query_as!(
         CustomViewExerciseTaskSubmission,
         r#"
-        SELECT g.id,
+        SELECT DISTINCT ON (g.exercise_task_id)
+        g.id,
         g.created_at,
         g.exercise_slide_submission_id,
         g.exercise_slide_id,
@@ -528,6 +529,7 @@ pub async fn get_user_exersice_task_submissions_by_course_module_and_exercise_ty
       AND ess.deleted_at IS NULL
       AND e.deleted_at IS NULL
       AND c.deleted_at IS NULL
+      ORDER BY g.exercise_task_id, g.created_at DESC
       "#,
         user_id,
         course_instance_id,