def save(self, *args, **kwargs):
super(Customer, self).save(*args, **kwargs)
if not self.designator:
self.designator = build_verhoeff_id('DC', self.id, length=8)
self.save()
def save(self, *args, **kwargs):
super(Notification, self).save(*args, **kwargs)
if not self.designator:
self.designator = build_verhoeff_id('DN', self.id, length=8)
self.save()
def save(self, *args, **kwargs):
super(Order, self).save(*args, **kwargs)
if not self.designator:
length = int(math.log10(self.id)) + 2
self.designator = build_verhoeff_id('DA', self.id, length=length)
self.save()
def save(self, *args, **kwargs):
super(Invoice, self).save(*args, **kwargs)
if not self.designator:
self.designator = build_verhoeff_id('DI', self.id, length=8)
self.save()