Redmine

  validates_presence_of :login, :firstname, :lastname, :mail, :if => Proc.new { |user| !user.is_a?(AnonymousUser) }

  validates_uniqueness_of :login, :if => Proc.new { |user| !user.login.blank? }, :case_sensitive => false

  validates_uniqueness_of :mail, :if => Proc.new { |user| !user.mail.blank? }, :case_sensitive => false

  validates_format_of :login, :with => /^[a-z0-9_\-@\.]*$/i

  validates_length_of :login, :maximum => 30

  validates_format_of :firstname, :lastname, :with => /^[\w\s\'\-\.]*$/i

      begin

        write_attribute(:identity_url, OpenIdAuthentication.normalize_identifier(url))

      rescue OpenIdAuthentication::InvalidOpenId

      end

    end

    self.read_attribute(:identity_url)