ActiveResource LogSubscriber exception logging instead of breaking on nil result. Fixes undefined method 'code' for NilClass when ActiveResource throws a TimeoutError.

log_subscriber.rb

module ActiveResource
  class LogSubscriber < ActiveSupport::LogSubscriber
    def request(event)
      result = event.payload[:result]
      info "#{event.payload[:method].to_s.upcase} #{event.payload[:request_uri]}"
      if event.payload.has_key?(:exception)
        error "#{event.payload[:exception].join(' ')}\n"
      else
        info "STATUS %d %s %d (%.1fms)" % [result.code, result.message, result.body.to_s.length, event.duration]
        info "BODY #{result.body}\n"
      end
    end

    def logger
      ActiveResource::Base.logger
    end
  end
end

# This is already called in /active_resource/log_subscriber.rb
# ActiveResource::LogSubscriber.attach_to :active_resource

# Attach to STDOUT
ActiveResource::Base.logger = Logger.new(STDOUT)
ActiveResource::Base.logger.level = Logger::DEBUG