Extraction ML Adhérents des années N et N-years

management/commands/extract_ml_registrations.py

@@ -12,7 +12,7 @@ from wei.models import WEIClub
 
 class Command(BaseCommand):
     help = "Get mailing list registrations from the last wei. " \
-           "Usage: manage.py extract_ml_registrations -t {events,art,sport} -t {fr, en}. " \
+           "Usage: manage.py extract_ml_registrations -t {events,art,sport} -t {fr, en} -y {0, 1, ...}. " \
            "You can write this into a file with a pipe, then paste the document into your mail manager."
 
     def add_arguments(self, parser):
@@ -21,6 +21,8 @@ class Command(BaseCommand):
         parser.add_argument('--lang', '-l', type=str, choices=['fr', 'en'], default='fr',
                             help='Select the registred users of the ML of the given language. Useful only for the '
                                  'events mailing list.')
+        parser.add_argument('--years', '-y', type=int, default=0, 
+                            help='Select the cumulative registred users of a membership from years ago. 0 means the current users')
 
     def handle(self, *args, **options):
         # TODO: Improve the mailing list extraction system, and link it automatically with Mailman.
@@ -30,10 +32,12 @@ class Command(BaseCommand):
             return
 
         if options["type"] == "members":
+            today_date = date.today()
+            selected_date = date(today_date.year - years, today.month, today.day)
             for membership in Membership.objects.filter(
                 club__name="BDE",
-                date_start__lte=date.today(),
-                date_end__gte=date.today(),
+                date_start__lte=today_date,
+                date_end__gte=selected_date,
             ).all():
                 self.stdout.write(membership.user.email)
             return