Python-сообщество

class Delivery(models.Model):
    """Тип доставки"""
    title = models.CharField(u'Наименование', max_length=255)
    time = models.CharField(u'Сроки доставки', max_length=255)
    price = models.DecimalField(u'Стоимость', max_digits=20, decimal_places=2)
    hidden = models.BooleanField(u'Скрыт', default=False)
        
    def __unicode__(self):
        return u'%s' % self.title

class Order(models.Model):
    """Модель заказа"""
    delivery = models.ForeignKey(Delivery)

class DeliverySettings(forms.ModelForm):
    """Форма выбора типа доставки"""
    class Meta:
        model = Order
        fields = ('delivery',)
        widgets = {'delivery': forms.RadioSelect}

def delivery(req, order_id):
    """Выбор способа доставки"""
    order = get_object_or_404(Order, pk=order_id)
    posters = Poster.objects.filter(order=order)
    form = DeliverySettings(instance=order)
    
    if req.method == 'POST':
        form = DeliverySettings(instance=order, data=req.POST)
        
        if form.is_valid():
            form.save()
        
    result = []
    value = force_unicode(order.delivery_id)
            
    for type in form.fields['delivery'].queryset:
        choice = [type.id, type.title]
        widget = RadioInput(u'delivery', value, {'id': 'delivery'}, choice, type.id)
        result.append({'widget': widget, 'time': type.time, 'price': type.price})