JezK
Edit File: product.rb
class Product < ActiveRecord::Base validates_presence_of :title validates_inclusion_of :price, :in => 0..99, :unless => :tangible validates_format_of :size, :with => /^\d+\D+$/, :unless => :tangible validates_presence_of :price, :if => :tangible validates_inclusion_of :price, :in => 1..9999, :if => :tangible validates_inclusion_of :weight, :in => 1..100, :if => :tangible validates_format_of :size, :with => /.+x.+x.+/, :if => :tangible validates_length_of :size, :in => 5..20, :if => :tangible end