Creación de métodos dinámicos.

user.rb

class User

   STATUS = {active: "Active", inactive: "Inactive", invited:"Invited"}

   STATUS.each_with_index do |(meth, value)| 
     define_method("is_#{meth}?"){status == value}
   end
   
   def initialize(name, email, password, status)
      @name  = name
      @email = email
      @password = password
      @status = status
   end

   def name
      @name
   end

   def email
      @email
   end

   def password
      @password
   end

   def status
      @status
   end
end