I'm trying to setup my first app and I'm trying to figure out the best way to have constraints on a particular field (strategy for class Division noted below). Below is the basic model structure. What I would like is for the strategy under a Division to be constrained to the strategies selected for the Business. A business may have many strategies, but a division will only have one (but it should only be one selected for the business). Any help on this would be appreciated. Thanks, Sam
class Strategy(models.Model): name = models.CharField(max_length=200) #name would be something like retail, wholesale, etc class Business(models.Model): name = models.CharField() strategy = models.ManyToManyField(Strategy) class Division(models.Model): business = models.ForeignKey(Business) name = models.CharField() strategy = ??? -- You received this message because you are subscribed to the Google Groups "Django users" group. To view this discussion on the web visit https://groups.google.com/d/msg/django-users/-/sunwQb8Ft0cJ. To post to this group, send email to django-users@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.