Hi, I couldn't find a better word for pop, but let's go: There are 3 models: sale, pop and product
sale: -total:integer pop: -quantity:integer -discount:float product: -name:string -price:float A sale can have many different products, each one has a quantity and discount associated. So each sale has_many :products through => pops And each product has_many :sales through => pops For example: +-------------------------------------------+ |--> Sale 1 <--> Pop 1 <--> Product 1 | | qty = 20 | | disc= 0.1 | | <--> Pop 2 <--> Product 2 | | qty = 10 | | disc=0 | +-------------------------------------------+ |--> Sale 2 <--> Pop 3 <--> Product 3 | | qty = 4 | | disc= 0.5 | | <--> Pop 4 <--> Product 1 | | qty = 5 | | disc=0 | +-------------------------------------------+ By the time I associate a sale with a product I need to especify quantity and discount because Sale's model has validations that uses quantity and discount values. In rails console: s = Sale.new p = Product.new p.save s.products << Product.last s.save This way I can't use pops columns before saving the sale. How can I do that? -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
