file.rb

  def url_valid
    url = URI.parse(get_linkedin_profile)
    unless %w( http https ).include?(url.scheme) && (url.hostname.include? "linkedin") && !url.path.blank?
      errors.add(:detail, "Please Enter a Valid Linkedin Profile URL")
    end
  rescue URI::InvalidURIError => e
    errors.add(:detail, "Please Enter a Valid Linkedin Profile URL")
  end

#This method works fine but How can I better handle invalid string values like linkedin_url = ">>>>>" ?
# Now such string gives me this error instead of error message

URI::InvalidURIError in UsersController#action

bad URI(is not URI?): >>>>>>>>>>>>>>>>>>