class Contact < ActiveRecord::Base validates :name, :presence => true validates :email, :presence => true, :format => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i validates :tel, :presence => true, :numericality => true, :length => { :minimum => 10, :maximum => 15 } validates :message, :presence => true end