k4ever/k4ever/main/models.py

from django.db import models
from django.db.models.signals import post_save
from django.contrib.auth.models import User
from decimal import Decimal

class UserProfile(models.Model):
	user = models.ForeignKey(User, unique=True)
	balance = models.DecimalField(max_digits=9, decimal_places=2, default=Decimal(0))
	
	def __unicode__(self):
		return "%s (Kontostand: %s)" % (self.user ,self.balance)

def createUserProfile(sender, instance, created, **kwargs):
	if created:
		profile = UserProfile()
		profile.user = instance
		profile.save()

post_save.connect(createUserProfile, sender=User)