On Oct 20, 11:12 am, simong <[EMAIL PROTECTED]> wrote: > if request.method == 'POST': > orderform = OrderForm(request.POST) > if orderform.is_valid(): > preorder = orderform.save(commit=False) > orderno = '%04d' % (preorder.id) > preorder.orderno = orderno > preorder.cartid = cartid > preorder.save() > > I do the uncommited save to get pk to pad it for an order number. > However, at orderform.save, I am now getting the eternally helpful > error > > <type 'exceptions.TypeError'>: coercing to Unicode: need string or > buffer, NoneType found. >
I assume the error is happening at the line: orderno = '%04d' % (preorder.id) I'm not sure what you're expecting to happen here. You explicitly call commit=False on the form save, so the model isn't saved to the database and preorder won't have an id. Then you attempt to use that non-existent id - unsurprisingly, Python can't convert None into a four-digit number. If your 'orderno' field is simply a four-digit padded version of the pk field, you would probably be better of providing a model method to get that, rather than saving it twice to the database. -- DR. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
