Removed ID and improved unknown user handling

src/pages/api/assignments/[id]/export.tsx

@@ -223,36 +223,27 @@ async function post(req: NextApiRequest, res: NextApiResponse) {
 
           return data.assignees.map((id) => {
             const user = users.find((u) => u.id === id);
-
-            if (user) {
-              const exams = flattenResults.filter((e) => e.user === id);
-              return {
-                id,
-                name: user.name,
-                email: user.email,
-                gender: user.demographicInformation?.gender,
-                date:
-                  exams.length === 0
-                    ? "N/A"
-                    : new Date(exams[0].date).toLocaleDateString(undefined, {
-                        year: "numeric",
-                        month: "numeric",
-                        day: "numeric",
-                      }),
-                result:
-                  exams.length === 0
-                    ? "N/A"
-                    : `${exams[0].score.correct}/${exams[0].score.total}`,
-              };
-            }
+            const exams = flattenResults.filter((e) => e.user === id);
+            const date =
+              exams.length === 0
+                ? "N/A"
+                : new Date(exams[0].date).toLocaleDateString(undefined, {
+                    year: "numeric",
+                    month: "numeric",
+                    day: "numeric",
+                  });
+            const result =
+              exams.length === 0
+                ? "N/A"
+                : `${exams[0].score.correct}/${exams[0].score.total}`;
 
             return {
-              id: "N/A",
-              name: "N/A",
-              email: "N/A",
-              gender: "N/A",
-              date: "N/A",
-              result: "N/A",
+              id,
+              name: user?.name || "N/A",
+              email: user?.email || "N/A",
+              gender: user?.demographicInformation?.gender || "N/A",
+              date,
+              result,
             };
           });
         };