Python：比较日期并批量更新某些字段

我为我的事件模块创建了一个刷新函数，如果事件日期已经过了，它会将状态批量更新为0. models.py个

class Events(models.Model):
    id = models.AutoField(db_column='id', primary_key=True)
    title = models.CharField(max_length=45, blank=True, null=True)
    venue = models.CharField(max_length=45, blank=True, null=True)
    date = models.DateTimeField(max_length=45, blank=True, null=True)
    description = models.CharField(max_length=255, blank=True, null=True)
    image = models.ImageField(upload_to=eventpath, blank=True, null=True)
    manager = models.CharField(max_length=100, blank=True, null=True)
    attendees = models.CharField(max_length=100, blank=True, null=True)
    date_posted = models.DateTimeField(max_length=45, blank=True, null=True)
    status = models.BooleanField(default=1)

这就是我添加事件的方式.

def uploadEvent(request):
    if request.method == "POST":
        item = Events()
        item.title = request.POST.get('title')
        item.venue = request.POST.get('venue')
        date = request.POST.get('date')
        date_object = datetime.datetime.strptime(date, '%a %b %d %Y %I:%M %p')
        item.date = date_object
        item.manager = request.POST.get('manager')
        item.attendees = request.POST.get('attendees')
        item.description = request.POST.get('description')
        date_posted = datetime.datetime.strptime(date, '%a %b %d %Y %I:%M %p')
        item.date_posted = date_posted
        if len(request.FILES) != 0:
            item.image = request.FILES['image']

        item.save()
        return redirect('/amsai/events/')

    return render(request, 'admin/events_add.html')

这就是我想要更新所有事件的方式.我把obj.date换成了date()

def refreshEvent(request):
   events = Events.objects.all()
   status = 0
   date = datetime.datetime.today().date()
   if events:
       for obj in events:
           if obj.date.date() < date:
               Events.objects.filter(*****).update(status=status)
   return redirect('/amsai/events/')

问题是，我如何过滤那些已通过的日期？我不知道在Filter()中写什么.