Action Pack provides a logger. Have a look to ri Logger: you can use: logger.info('French cheese rocks'), logger.fatal('Django sucks'), ... Those are writtent in log/*.log
You can also use breakpoints (ruby script/breakpointer) for debugging.
I did what you wrote, but I cannot find the output anywhere on the screen :S any other easy way to debug my web application? please
If you're running in development mode, the output will be written to log/development.log. I tend to leave a terminal open running 'tail -f log/development.log'.
Because all output is rendered through a View, it's not trivial to do debug writes into the HTML itself, like you would in PHP, but the logfile is a better approach anyway.
Gwyn.
You can use @debug(params) for instance.
A ugly hack would be: logger.warn('poy!') in the controller
File.read("#{RAILS_ROOT}/log/development.log") in the view 
But why debug in the view? Just use breakpoints.
I did what you wrote, but I cannot find the output anywhere on the screen :S any other easy way to debug my web application? please
└─(22:30:%)── ruby script/console
logger = Logger.new('log/development.log')
=> #<Logger:0xb69fa4dc @progname=nil, @level=0, @logdev=#<Logger::LogDevice:0xb69fa48c @shift_age=0, @filename="log/development.log", @mutex=#<Logger::LogDevice::LogDeviceMutex:0xb69fa464 @mon_entering_queue=, @mon_count=0, @mon_owner=nil, @mon_waiting_queue=>, @dev=#<File:log/development.log>, @shift_size=1048576>, @formatter=nil, @default_formatter=#<Logger::Formatter:0xb69fa4b4 @datetime_format=nil>>
logger.warn('WTF?!')
=> true
exit
└─(1:22:31:%)── tail -1 log/development.log WTF?!
Hope that helps.
Use mTail.
Free. For windows.
-- Wes
I guess PowerShell have a tail cmd.
