Sorry for wasting your preciuose time. I'm very newby in django. I have de following
class Commessa(models.Model): commessa = models.CharField(max_length=20) quota_oraria=models.DecimalField(max_digits=5, decimal_places=2) ... class Diario(models.Model): data= models.DateField('data inizio') commessa = models.ForeignKey(Commessa) ore=models.IntegerField() ... I want to add a column to Commessa containg the result of: quota_oraria * sum(ore) for each item in commessa. any suggestion will be greatly appreciated; tank vwry much in advance -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.