Add option to reveal respondent identities in exam review responses

anatomy/templates/anatomy/partials/exam_review_question_responses_fragment.html

@@ -1,13 +1,28 @@
 {# Responses partial for anatomy question within an exam. HTMX-loadable. #}
 <div id="anatomy-responses-container">
-    <h6>Responses in this exam</h6>
+    <div class="d-flex justify-content-between align-items-center mb-2">
-    <div class="small text-muted mb-2">List of candidate answers recorded for this question in the current exam.</div>
+        <div>
+            <h6 class="mb-0">Responses in this exam</h6>
+            <div class="small text-muted">List of candidate answers recorded for this question in the current exam.</div>
+        </div>
+        <div>
+            {% if not reveal_respondents %}
+                <button class="btn btn-sm btn-outline-primary" hx-get="?reveal=1" hx-target="#anatomy-responses-container" hx-swap="outerHTML">Show respondents</button>
+            {% else %}
+                <button class="btn btn-sm btn-outline-secondary" hx-get="?" hx-target="#anatomy-responses-container" hx-swap="outerHTML">Hide respondents</button>
+            {% endif %}
+        </div>
+    </div>
     <ul class="list-group">
         {% for ua in exam_user_answers %}
             <li class="list-group-item d-flex justify-content-between align-items-start">
                 <div>
                     {% if ua.user %}
+                        {% if reveal_respondents %}
                             <strong>{{ ua.user.get_full_name|default:ua.user.username }}</strong>
+                        {% else %}
+                            <strong>Respondent {{ forloop.counter }}</strong>
+                        {% endif %}
                     {% else %}
                         <strong>Anonymous</strong>
                     {% endif %}

anatomy/views.py

@@ -278,12 +278,17 @@ def exam_review_question_responses(request, pk: int, q_index: int):
     except Exception:
         exam_user_answers = question.cid_user_answers.all()
 
+    # Allow an HTMX-driven reveal of respondent names. Default: anonymised.
+    reveal = request.GET.get("reveal", "0")
+    reveal_respondents = str(reveal).lower() in ("1", "true", "yes", "on")
+
     context = {
         "exam": exam,
         "question": question,
         "q_index": q_index,
         "app_name": "anatomy",
         "exam_user_answers": exam_user_answers,
+        "reveal_respondents": reveal_respondents,
     }
 
     return render(request, "anatomy/partials/exam_review_question_responses_fragment.html", context)