#models.py
class Station(models.Model):
station_name = models.CharField(max_length=20)
class Order(models.Model):
station = models.ManyToManyField(Station, blank=True, null=True)
class UserProfile(models.Model):
user = models.ForeignKey(User, unique=True)
station = models.ManyToManyField(Station, blank=True, null=True)
>>> from myapp.models import Station, Order
>>> from django.contrib.auth.models import User
>>> u = User.objects.get(username__exact='ryan')
>>> user_stations = u.get_profile().station.all().values_list('pk', flat=True)
>>> user_stations
[1L, 2L, 3L]
>>> o = Order.objects.filter(station__in=user_stations)
>>> o
[Too many orders!]
Order.objects.filter(station__in=user_stations) returns any order
where any of its stations are in user_stations. What I need is only
those orders where ALL of its stations are in user_stations. Is there
a way to specify __all__in: Order.objects.filter
(station__all__in=user_stations)
-ryan
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