Otimize DB request for the right page

Reimplement end_adhesion and is_adherent methods in the
query itself so it can be done in a single query and not
done for each user individually.

users/templates/users/aff_listright.html

@@ -70,7 +70,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
                         {% for user in superusers %}
                         <tr>
                             <td>{{ user.pseudo }}</td>
-                            {% if user.is_adherent %}
+                            {% if user.end_adhesion is not None and user.end_adhesion >= now %}
                             <td class="text-success">{% trans "Member" %}</td>
                             {% elif not user.end_adhesion %}
                             <td class="text-warning">{% trans "No membership records" %}</td>
@@ -175,7 +175,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
                         {% for user in users %}
                         <tr>
                             <td>{{ user.pseudo }}</td>
-                            {% if user.is_adherent %}
+                            {% if user.end_adhesion is not None and user.end_adhesion >= now %}
                             <td class="text-success">{% trans "Member" %}</td>
                             {% elif not user.end_adhesion %}
                             <td class="text-warning">{% trans "No membership records" %}</td>

users/views.py

@@ -811,15 +811,18 @@ def index_listright(request):
                   .order_by('name')
                   .prefetch_related('permissions')
                   .prefetch_related('user_set')
+                  .prefetch_related('user_set__facture_set__vente_set__cotisation')
                  ):
         rights[right] = (right.user_set
                          .annotate(action_number=Count('revision'),
-                                   last_seen=Max('revision__date_created'))
+                                   last_seen=Max('revision__date_created'),
+                                   end_adhesion=Max('facture__vente__cotisation__date_end'))
                         )
     superusers = (User.objects
                   .filter(is_superuser=True)
                   .annotate(action_number=Count('revision'),
-                            last_seen=Max('revision__date_created'))
+                            last_seen=Max('revision__date_created'),
+                            end_adhesion=Max('facture__vente__cotisation__date_end'))
                  )
     return render(
         request,