Implement exam selection feature with HTMX support in exam edit view and add exam selection fragment template

generic/views.py

@@ -433,6 +433,22 @@ def get_examination_id(request):
 # Generic view to dispatch to indivuals app views
 @login_required
 def generic_exam_json_edit(request):
+    # GET: return a small fragment with an exam selector for the given type
+    if request.method == "GET":
+        question_type = request.GET.get("type")
+        if not question_type:
+            return JsonResponse({"status": "error", "message": "missing type"}, status=400)
+        try:
+            Exam = get_exam_model_from_app_name(question_type)
+        except Exception:
+            return JsonResponse({"status": "error", "message": "unknown type"}, status=400)
+
+        # Limit to exams that are not archived and are exam_mode
+        exams = Exam.objects.filter(archive=False, exam_mode=True).order_by("name")[:200]
+        return render(request, "generic/partials/exam_select_fragment.html", {"exams": exams, "type": question_type})
+
+    # Support POST additions via either an explicit JSON 'add_exam_questions' or
+    # via a list of checkboxes named 'selection' sent by HTMX from the question list.
     if request.method == "POST":
         question_type = request.POST.get("type")
 
@@ -468,6 +484,16 @@ def generic_exam_json_edit(request):
 
         if "add_exam_questions" in request.POST:
             question_ids = json.loads(request.POST.get("add_exam_questions"))
+        else:
+            # Support HTMX flow where checkboxes named 'selection' are posted
+            # (multiple values). Convert to list of ints.
+            sel = request.POST.getlist("selection") or request.POST.getlist("selection[]")
+            question_ids = []
+            for s in sel:
+                try:
+                    question_ids.append(int(s))
+                except Exception:
+                    continue
             # question_objects = Question.objects.filter(pk__in=question_ids)
 
             add_count = 0

templates/generic/partials/exam_select_fragment.html

@@ -0,0 +1,23 @@
+<div class="card">
+  <div class="card-body">
+    <form hx-post="{% url 'generic:generic_exam_json_edit' %}" hx-target="#action-result" hx-swap="innerHTML">
+      <input type="hidden" name="type" value="{{ type }}" />
+      <div class="mb-2">
+        <label for="id_exam_id">Choose exam</label>
+        <select name="exam_id" id="id_exam_id" class="form-select form-select-sm">
+          {% for ex in exams %}
+            <option value="{{ ex.pk }}">{{ ex.name }}</option>
+          {% endfor %}
+        </select>
+      </div>
+      <div class="mb-2">
+        <label>Selected questions</label>
+        <div class="selected-placeholder small text-muted">(will be taken from selected checkboxes)</div>
+      </div>
+      <div class="d-flex gap-2">
+        <button class="btn btn-primary btn-sm" type="submit" name="add_from_selection">Add selected</button>
+        <button class="btn btn-secondary btn-sm" type="button" onclick="document.querySelector('#action-result').innerHTML='';">Cancel</button>
+      </div>
+    </form>
+  </div>
+</div>

templates/question_table_view.html

@@ -21,9 +21,9 @@
                         </div>
                         <div class="btn-group" role="group">
                             <button id="button-select-add-exam" class="btn btn-outline-primary btn-sm"
-                                    data-exam_json_edit_url="{% url 'generic:generic_exam_json_edit' %}"
+                                    hx-get="{% url 'generic:generic_exam_json_edit' %}?type={{ app_name }}"
-                                    data-exam_list_url="{% url 'api-1:'|add:app_name|add:'_user_exams' %}"
+                                    hx-target="#action-result"
-                                    data-type={{app_name}} data-csrf="{{ csrf_token }}">Add to exam</button>
+                                    hx-swap="innerHTML">Add to exam</button>
                         </div>
                     </div>
                 </div>