62 lines
1.7 KiB
Ruby
62 lines
1.7 KiB
Ruby
require 'active_support/core_ext/logger'
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require 'active_support/benchmarkable'
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module AbstractController
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module Logger
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extend ActiveSupport::Concern
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included do
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cattr_accessor :logger
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extend ActiveSupport::Benchmarkable
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end
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# A class that allows you to defer expensive processing
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# until the logger actually tries to log. Otherwise, you are
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# forced to do the processing in advance, and send the
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# entire processed String to the logger, which might
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# just discard the String if the log level is too low.
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#
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# TODO: Require that Rails loggers accept a block.
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class DelayedLog < ActiveSupport::BasicObject
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def initialize(&block)
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@str, @block = nil, block
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end
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def method_missing(*args, &block)
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unless @str
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@str, @block = @block.call, nil
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end
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@str.send(*args, &block)
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end
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end
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# Override process_action in the AbstractController::Base
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# to log details about the method.
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def process_action(action)
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result = ActiveSupport::Orchestra.instrument(:process_action,
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:controller => self, :action => action) do
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super
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end
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if logger
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log = DelayedLog.new do
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"\n\nProcessing #{self.class.name}\##{action_name} " \
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"to #{request.formats} (for #{request_origin}) " \
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"[#{request.method.to_s.upcase}]"
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end
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logger.info(log)
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end
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result
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end
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private
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# Returns the request origin with the IP and time. This needs to be cached,
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# otherwise we would get different results for each time it calls.
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def request_origin
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@request_origin ||= "#{request.remote_ip} at #{Time.now.to_s(:db)}"
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end
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end
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end
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