Ajout deux deux commandes d'administration

 - cleancourses efface tous les cours, les groupes et les dernières
   mises à jours par défaut. Il est possible de supprimer seulement ceux
   d'un ou plusieurs emploi du temps en passant leurs ID au paramètre
   --timetable
 - listtimetables affiche la liste des emplois du temps enregistrés dans
   la base de données, ordonnés par leur nom. Il est possible de les
   ordonner par ID avec le paramètre --order-by-id

1 files changed, 39 insertions, 0 deletions

diff --git a/management/commands/cleancourses.py b/management/commands/cleancourses.py
new file mode 100644
index 0000000..bc14893
--- /dev/null
+++ b/management/commands/cleancourses.py
@@ -0,0 +1,39 @@
+#    Copyright (C) 2017  Alban Gruin
+#
+#    celcatsanitizer is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    celcatsanitizer is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License along
+#    with celcatsanitizer; if not, write to the Free Software Foundation, Inc.,
+#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from django.core.management.base import BaseCommand
+from django.db import transaction
+from edt.models import Course, Group, LastUpdate
+
+
+class Command(BaseCommand):
+    help = "Remove all courses and groups from the database"
+
+    def add_arguments(self, parser):
+        parser.add_argument("--timetable", type=int, nargs="+")
+
+    @transaction.atomic
+    def handle(self, *args, **options):
+        if options["timetable"] is None:
+            Course.objects.all().delete()
+            Group.objects.all().delete()
+            LastUpdate.objects.all().delete()
+        else:
+            Course.objects.filter(timetable__id__in=options["timetable"]).delete()
+            Group.objects.filter(timetable__id__in=options["timetable"]).delete()
+            LastUpdate.objects.filter(timetable__id__in=options["timetable"]).delete()
+
+        self.stdout.write(self.style.SUCCESS("Done."))