ahhhh Sorry I see now I was thinking that the CartItem class was an activerecord class ... The issue is this:
Here you call a new object of CartItem with a product passed @items << CartItem.new(product) But here in the initialize you do not have a argument for initialize... class CartItem attr_reader :product, :quantity def initialize @product = product @quantity = 1 end Change it to this class CartItem attr_reader :product, :quantity def initialize( product ) @product = product @quantity = 1 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 rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---