Question detail view: Show total number of answers

src/pretix/control/templates/pretixcontrol/items/question.html

@@ -84,6 +84,13 @@
                         </tr>
                     {% endfor %}
                     </tbody>
+                    <tfoot>
+                        <tr>
+                            <td><strong>{% trans "Sum" %}</strong></td>
+                            <td class="text-right"><strong>{{ total }}</strong></td>
+                            <td></td>
+                        </tr>
+                    </tfoot>
                 </table>
             </div>
         {% endif %}

src/pretix/control/views/item.py

@@ -717,13 +717,13 @@ class QuestionView(EventPermissionRequiredMixin, QuestionMixin, ChartContainingV
         total = sum(a['count'] for a in r)
         for a in r:
             a['percentage'] = (a['count'] / total * 100.) if total else 0
-        return r
+        return r, total
 
     def get_context_data(self, **kwargs):
         ctx = super().get_context_data()
         ctx['items'] = self.object.items.all()
         stats = self.get_answer_statistics()
-        ctx['stats'] = stats
+        ctx['stats'], ctx['total'] = stats
         ctx['stats_json'] = json.dumps(stats)
         return ctx