Enhance answer aggregation logic in exam review to handle diverse answer formats and improve robustness

physics/views.py

@@ -466,16 +466,47 @@ def exam_review_question_summary(request, pk: int, q_index: int):
     # Physics answers may be stored as tuples/lists or named fields; attempt to aggregate
     counts = defaultdict(int)
     other_count = 0
-    for ans in ua_qs.values_list("answer", flat=True):
-        if not ans:
-            other_count += 1
-            continue
-        # normalize iterable answers to a string key
-        if isinstance(ans, (list, tuple)):
-            key = ", ".join([str(x) for x in ans])
-        else:
-            key = str(ans)
-        counts[key] += 1
+    # Try simple 'answer' field aggregation first; if not present, fall
+    # back to iterating objects and using get_answer() or composing parts.
+    try:
+        for ans in ua_qs.values_list("answer", flat=True):
+            if not ans:
+                other_count += 1
+                continue
+            if isinstance(ans, (list, tuple)):
+                key = ", ".join([str(x) for x in ans])
+            else:
+                key = str(ans)
+            counts[key] += 1
+    except Exception:
+        for ua in ua_qs:
+            ans_val = None
+            try:
+                if hasattr(ua, "get_answer"):
+                    ans_val = ua.get_answer()
+            except Exception:
+                ans_val = None
+
+            if not ans_val:
+                parts = []
+                for fld in ("a", "b", "c", "d", "e"):
+                    if hasattr(ua, fld):
+                        v = getattr(ua, fld)
+                        if v is None:
+                            continue
+                        if isinstance(v, (list, tuple)):
+                            parts.extend([str(x) for x in v])
+                        else:
+                            parts.append(str(v))
+
+                if parts:
+                    ans_val = ", ".join(parts)
+
+            if not ans_val:
+                other_count += 1
+                continue
+
+            counts[ans_val] += 1
 
     counts["unanswered"] = other_count