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djangoadminprefixautofield

Django admin auto field with prefix

I have a auto field that creates a ticket number. however just the number alone looks very un professional. how would I add "#0000" in front of the auto field and every time the number goes above 1 or two digits the "0" needs to be filled . Hope this makes sense .

 Ticket_Number = models.AutoField(primary_key=True,)
  

   def save(self, *args, **kwargs):
    self.Ticket_Number = '#0000' + self.Ticket_Number
    return super(SupportTicket, self).save(*args, **kwargs)
Solution 
  •  def save(self):
    if not self.Ticket_Number:
        lenn = len(SupportTicket.objects.all()) + 1
        prefix = "#000000"
        self.Ticket_Number = prefix[:-len(str(lenn))] + str(lenn)
    super(SupportTicket, self).save()