require 'active_support/core_ext/object/blank' module ActionController class LogSubscriber < ActiveSupport::LogSubscriber INTERNAL_PARAMS = %w(controller action format _method only_path) def start_processing(event) payload = event.payload params = payload[:params].except(*INTERNAL_PARAMS) format = payload[:format] format = format.to_s.upcase if format.is_a?(Symbol) info "Processing by #{payload[:controller]}##{payload[:action]} as #{format}" info " Parameters: #{params.inspect}" unless params.empty? end def process_action(event) payload = event.payload additions = ActionController::Base.log_process_action(payload) status = payload[:status] if status.nil? && payload[:exception].present? status = ActionDispatch::ExceptionWrapper.new({}, payload[:exception]).status_code end message = "Completed #{status} #{Rack::Utils::HTTP_STATUS_CODES[status]} in %.0fms" % event.duration message << " (#{additions.join(" | ")})" unless additions.blank? info(message) end def halted_callback(event) info "Filter chain halted as #{event.payload[:filter]} rendered or redirected" end def send_file(event) message = "Sent file %s" message << " (%.1fms)" info(message % [event.payload[:path], event.duration]) end def redirect_to(event) info "Redirected to #{event.payload[:location]}" end def send_data(event) info("Sent data %s (%.1fms)" % [event.payload[:filename], event.duration]) end %w(write_fragment read_fragment exist_fragment? expire_fragment expire_page write_page).each do |method| class_eval <<-METHOD, __FILE__, __LINE__ + 1 def #{method}(event) key_or_path = event.payload[:key] || event.payload[:path] human_name = #{method.to_s.humanize.inspect} info("\#{human_name} \#{key_or_path} \#{"(%.1fms)" % event.duration}") end METHOD end def logger ActionController::Base.logger end end end ActionController::LogSubscriber.attach_to :action_controller