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The Logger (revised)

#56 The Logger (revised)

Apr 13, 2012 | 6 minutes | Debugging, Tools
The log file will show what is going on behind the scenes of a Rails request. Learn how to log messages, add tags, override formatting, and more.
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Resources

articles_controller.rb 
logger.debug { "Article Count: #{Article.count}" }
config/environments/production.rb 
config.log_level = :warn
config/environments/development.rb 
config.log_tags = [:uuid, :remote_ip, lambda { |req| Time.now }]
config/initializers/log_formatter.rb 
class Logger::SimpleFormatter
  def call(severity, time, progname, msg)
    "[#{severity}] #{msg}\n"
  end
end