Fewer requests on petit cours list management.

gestioncof/petits_cours_views.py

@@ -24,13 +24,14 @@ from gestioncof.shared import lock_table, unlock_tables
 
 
 class DemandeListView(ListView):
-    model = PetitCoursDemande
+    queryset = (
+        PetitCoursDemande.objects
+        .prefetch_related('matieres')
+        .order_by('traitee', '-id')
+    )
     template_name = "petits_cours_demandes_list.html"
     paginate_by = 20
 
-    def get_queryset(self):
-        return PetitCoursDemande.objects.order_by('traitee', '-id').all()
-
 
 class DemandeDetailView(DetailView):
     model = PetitCoursDemande