class User < ActiveRecord::Base
  validates  :username, :presence => true, :uniqueness => true, :length => { :minimum => 3, :maximum => 16}
  validates  :password, :presence => true,
                        :length   => { :minimum => 6 }

  validates_format_of :email, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i, :on => :create

  belongs_to :subscribers
end