boards/management/commands/enforce_privacy.py

from datetime import datetime, timedelta, date
from datetime import time as dtime

from django.core.management import BaseCommand
from django.db import transaction
from django.utils import timezone

from boards.models import Post
from boards.models.post.manager import NO_IP

__author__ = 'neko259'


class Command(BaseCommand):
    help = 'Removes user and IP data from posts'

    def add_arguments(self, parser):
        parser.add_argument('--days-before', type=int,
                            help='Clean posts only before the number of days before today.')

    @transaction.atomic
    def handle(self, *args, **options):
        days_before = options.get('days_before')

        if days_before:
            day_end = date.today() - timedelta(1)

            day_time_end = timezone.make_aware(datetime.combine(
                day_end, dtime()), timezone.get_current_timezone())
            posts = Post.objects.filter(pub_time__lte=day_time_end)
        else:
            posts = Post.objects.all()
        posts.update(poster_ip=NO_IP)