Change Good.provisioning_duration to DurationField

costs/models.py

@@ -30,7 +30,7 @@ class Good(AbstractItem):
     """ A good, which replacement is provisioned
     """
     price = models.PositiveIntegerField()
-    provisioning_duration = models.PositiveSmallIntegerField(
+    provisioning_duration = models.DurationField(
         choices=settings.PROVISIONING_DURATIONS)
 
 

transparency/settings.py

@@ -108,6 +108,6 @@ STATIC_URL = '/static/'
 import datetime
 
 PROVISIONING_DURATIONS = [
-    (36, datetime.timedelta(days=365)),
-    (60, datetime.timedelta(days=365))
+    (datetime.timedelta(days=365*3), '3 ans'),
+    (datetime.timedelta(days=365*5), '5 ans'),
 ]