class User < ActiveRecord::Base validates_presence_of :email, :name, :password, :message => "blank" validates_format_of :email, :with => /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i, :allow_blank => true, :message => "format" validates_uniqueness_of :email, :case_sensitive => false, :message => "taken" end