class SubjectLink

  include Mongoid::Document
  include Mongoid::Timestamps
  
  field :url
  field :title, localize: true
  
  field :should_destroy, :type => Boolean
  
  belongs_to :subject

  before_validation :add_http
  # validates :url, :presence => true, :format => /^(http|https):\/\/(([a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5})|((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))(:[0-9]{1,5})?(\/.*)?/i

  protected

	def add_http
	  unless self.url[/^http:\/\//] || self.url[/^https:\/\//]
	    self.url = 'http://' + self.url
	  end
	end

end