Implement edit answer functionality with HTMX support; add new endpoint and template for editing stored answers in the marking UI.

anatomy/views.py

@@ -818,6 +818,24 @@ def mark2_toggle_answer(request):
         "incorrect": Answer.MarkOptions.INCORRECT,
     }
 
+    # Support clearing a stored answer (delete) via 'clear'
+    exam_pk = request.POST.get('exam_pk')
+    sk = request.POST.get('sk')
+
+    if newmark == 'clear':
+        a = Answer.objects.filter(answer_compare__iexact=answer_text, question_id=question.pk).first()
+        if a is not None:
+            # permission: ensure user can edit this answer
+            if not a.can_edit(request.user):
+                return JsonResponse({"status": "error", "message": "forbidden"}, status=403)
+            a.delete()
+        if request.htmx and exam_pk and sk is not None:
+            try:
+                return mark2_exam_marked(request, int(exam_pk), int(sk))
+            except Exception:
+                return JsonResponse({"status": "ok"})
+        return JsonResponse({"status": "ok"})
+
     if newmark not in mark_map:
         return JsonResponse({"status": "error", "message": "invalid mark"}, status=400)
 
@@ -833,6 +851,12 @@ def mark2_toggle_answer(request):
     a.status = status_val
     a.save()
 
+    if request.htmx and exam_pk and sk is not None:
+        try:
+            return mark2_exam_marked(request, int(exam_pk), int(sk))
+        except Exception:
+            return JsonResponse({"status": "ok"})
+
     return JsonResponse({"status": "ok"})
 
 
@@ -879,10 +903,71 @@ def mark2_exam_marked(request, exam_pk, sk):
     else:
         items.sort(key=lambda x: x.get('count', 0), reverse=True)
 
-    context = {'exam': exam, 'question': question, 'items': items}
+    context = {'exam': exam, 'question': question, 'items': items, 'sk': sk}
     return render(request, 'anatomy/partials/mark2_exam_marked_fragment.html', context)
 
 
+@login_required
+def mark2_edit_answer(request):
+    """HTMX-friendly endpoint to edit/create a stored Answer for a question.
+
+    GET: returns a small form fragment.
+    POST: updates/creates the Answer and, if exam_pk/sk provided, returns the
+    refreshed exam-marked fragment so the UI updates in-place.
+    """
+    if request.method == 'GET' and request.htmx:
+        question_pk = request.GET.get('question_pk')
+        original = request.GET.get('original', '')
+        exam_pk = request.GET.get('exam_pk')
+        sk = request.GET.get('sk')
+        question = get_object_or_404(AnatomyQuestion, pk=question_pk)
+        # Try to find an existing Answer by compare
+        existing = question.answers.filter(answer_compare__iexact=original).first()
+        context = {
+            'question': question,
+            'original': original,
+            'existing': existing,
+            'exam_pk': exam_pk,
+            'sk': sk,
+        }
+        return render(request, 'anatomy/partials/mark2_edit_answer_fragment.html', context)
+
+    if request.method == 'POST' and request.htmx:
+        question_pk = request.POST.get('question_pk')
+        original = request.POST.get('original', '')
+        new_text = request.POST.get('new_answer', '').strip()
+        exam_pk = request.POST.get('exam_pk')
+        sk = request.POST.get('sk')
+
+        if not question_pk or not new_text:
+            return HttpResponse('Missing parameters', status=400)
+
+        question = get_object_or_404(AnatomyQuestion, pk=question_pk)
+
+        a = question.answers.filter(answer_compare__iexact=original).first()
+        if a is None:
+            a = Answer()
+            a.question = question
+            a.answer = new_text
+        else:
+            a.answer = new_text
+
+        a.save()
+
+        # If we have exam context, refresh the exam-marked fragment for that question
+        if exam_pk and sk is not None:
+            # delegate to mark2_exam_marked to re-render the card
+            try:
+                return mark2_exam_marked(request, int(exam_pk), int(sk))
+            except Exception:
+                return HttpResponse('OK')
+
+        return HttpResponse('OK')
+
+    # Fallback: forbidden for non-HTMX or other methods
+    raise PermissionDenied()
+
+
 @login_required
 def mark2_question_marked(request, pk):
     """Return a partial listing of all stored Answer choices for this question (grouped by status)."""