On Thu, Jul 21, 2011 at 2:17 PM, Jani Tiainen <rede...@gmail.com> wrote: > Hi, > So you want to tie Contract with Product(s) with rebate_pct? You then need > custom intermediary m2m table say "ContractProduct" > <see https://docs.djangoproject.com/en/1.3/topics/db/models/#intermediary-manytomany> > for more. So in the end your models would probably look a alike following: > class Contract(): > contract_id = models.lIntegerField(...) > products = models.ManyToManyField(Product, through='ContractProduct') > class ContractProduct(): > contract = models.ForeignKey(Contract) > product = models.ForeignKey(Product) > rebate_pct = models.DecimalField(max_digits=4, decimal_places=2) > So now you can link Contract with multiple Products adding custom rebate_pct > value to each link. > And what comes to rebate value, I think you want to keep value with product > linkage for two reasons: > 1) It's a single scalar value > 2) It's probably something that should not be changed ever after saving. > hth,
Thanks for your response, I think this will work. How would I write a query to find the rebate_pct per contract per product? Thanks! -- You received this message because you are subscribed to the Google Groups "Django users" group. 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.
