validate formats

formats.rb

require 'open-uri'

class Some < ActiveRecord::Base

  # validates urls
    validates :url, :presence => true, :format =>  /(^$)|(^(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(([0-9]{1,5})?\/.*)?$)/ix,
    :uniqueness => true


  # validates email
  validates :email, :uniqueness => true, :presence => true, :format => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i


end