blog_controller.rb

来自「ruby on rails web敏捷开发之路第二版 源代码」· RB 代码 · 共 58 行

#---
# Excerpted from "Agile Web Development with Rails, 2nd Ed."
# We make no guarantees that this code is fit for any purpose. 
# Visit http://www.pragmaticprogrammer.com/titles/rails2 for more book information.
#---


class BlogController < ApplicationController


  around_filter :time_an_action



  around_filter do |controller, action|
    started = Time.now
    action.call
    elapsed = Time.now - started
    controller.logger.info("#{controller.action_name} took #{elapsed} seconds")
  end     


  class TimingFilter
    def filter(controller)
      started = Time.now
      yield
      elapsed = Time.now - started
      controller.logger.info("#{controller.action_name} took #{elapsed} seconds")
    end
  end
  
  around_filter TimingFilter.new


  def index
    # ...
    render :text => "hello"
  end
  
  def bye
    # ...
    render :text => "goodbye"
  end
  
  private
  
  def time_an_action
    started = Time.now
    yield                
    elapsed = Time.now - started
    logger.info("#{action_name} took #{elapsed} seconds")
  end


end