ideas on tagging logs for rails

tag_logs.rb

module PrefixedLogger
  def prefixed_logger prefix
    class << self
      attr_reader :logger
    end
    @logger = ActiveSupport.TaggedLogger.new(Rails.logger)
    @logger.instance_eval do
      define_method :add do |severity, msg, *args, &block|
        msg = "#{prefix} #{msg}"
        super severity, msg, *args, &block
      end
    end
  end
  def tag_logs with, &block
    if with < ActiveRecord::Base
      with = "#{with.class}.#{with.id}"
    end
    ActiveSupport.TaggedLogger.new(Rails.logger).tagged(with, &block)
  end

  module ControllerMacros
    def tags_logs_with action, &block
      prefix = instance_eval(block)
      override = Module.new
        define_method action do |*args|
          ActiveRecord::TaggedLogger.new(Rails.logger).tagged(prefix) do
            super
          end
        end
      end
      self.send :include, override
    end
  end
end