How do I describe an enumeration column in a Rails 3 migration?

Question

How do I describe an enumeration column in a Rails 3 migration?

Answer 1

Something like

class User < ActiveRecord::Base
   validates_inclusion_of :status, :in => [:active, :inactive]

   def status
     read_attribute(:status).to_sym
   end

   def status= (value)
     write_attribute(:status, value.to_s)
   end
 end