I'm not sure I'm 100% clear, but it sounds like you are saying that a Repair may only have one combination of Part/Product, and it just so happens that this combination implies a Level. To me the validation would be:
class Repair < ActiveRecord::Base belongs_to :level belongs_to :product belongs_to :part validates_presence_of :level_id, :product_id, :part_id validates_uniqueness_of :part_id, :scope => [:product_id] end Assuming I understand the problem, I think your confusion stems from the fact that the level isn't part of what defines a Repair, its simply an attribute of the Repair. It is really the Part and the Product that you should be concerned with. On Feb 21, 7:24 pm, Evan <[email protected]> wrote: > I just tried this code and was still able to create records with > different levels for the same part/product combination. > > class RepairClass < ActiveRecord::Base > belongs_to :level > belongs_to :product > belongs_to :part > > validates_presence_of :level_id, :product_id, :part_id > validates_uniqueness_of :level_id, :scope => > [ :product_id, :part_id ] > end --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
