Python-сообщество

from django.contrib.contenttypes import generic
from django.contrib.contenttypes.models import ContentType
class StoreCell(models.Model):
    name          = models.CharField(max_length=50)
class StoreCell2(models.Model):
    name          = models.CharField(max_length=50)
class Circuit(models.Model):
    name          = models.CharField(max_length=50)
    place_type    = models.ForeignKey(ContentType)
    palce_id      = models.PositiveIntegerField('place_id')
    place         = generic.GenericForeignKey('place_type', 'palce_id')
    def __unicode__(self):
        return u'%s' % self.name

place1  = StoreCell.objects.get_or_create(name='Store cell 1')[0]
c1 = Circuit(place=place1, name = 'Circuit1')
c1.save()
place2  = StoreCell2.objects.get_or_create(name='Store cell 2')[0]
c2 = Circuit(place=place2, name = 'Circuit2')
c2.save()