Rails - Sep 2006 - Running backgroundrb jobs, where do they run from?

Hey all

Im setting up a system that uses the excellent backgroundrb. However i 
want to use the very cool directroy watcher ( 
http://phrogz.net/RubyLibs/rdoc/files/DirectoryWatcher_rb.html ) to 
monitor a directory, however i keep getting an error saying the 
directory doesnt exsist.

Im running this from the models folder of a rails app, so where might it 
be running from? Ive tried going from RAILS_ROOT, ive even run it 
independantly - in which scenario it works, however i can only presume 
backgroundrb must be running from a different location?

i was wondering if it somhow might be running centered around the config 
dir as thats where the backgroundrb config file is?

Any help would be greatly appreciated!

Cheers

Tim

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On Sep 27, 2006, at 7:53 AM, Tim Perrett wrote:
>
> Hey all
>
> Im setting up a system that uses the excellent backgroundrb. However i
> want to use the very cool directroy watcher (
> http://phrogz.net/RubyLibs/rdoc/files/DirectoryWatcher_rb.html ) to
> monitor a directory, however i keep getting an error saying the
> directory doesnt exsist.
>
> Im running this from the models folder of a rails app, so where  
> might it
> be running from? Ive tried going from RAILS_ROOT, ive even run it
> independantly - in which scenario it works, however i can only presume
> backgroundrb must be running from a different location?
>
> i was wondering if it somhow might be running centered around the  
> config
> dir as thats where the backgroundrb config file is?
>
> Any help would be greatly appreciated!
>
> Cheers
>
> Tim

Hey Tim-

	I''m not sure exactly what you are asking? You are trying to run the  
DriWatch from a bdrb worker class? If so just use either the absolute  
path to the directory or RAILS_ROOT is available in your worker  
classes so you can base the path on that. ie:
RAILS_ROOT+''/foo/bar/baz''


-Ezra

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Hey Ezra

Thanks for getting back to me. Yea thats exactly what im trying to do, i 
just tried the following code...

## in my controller

  def start
    begin
      session[:job_key] = MiddleMan.new_worker(:class => :watch_worker, 
:args => { :dir => RAILS_ROOT + "/hotfolders/in", :delay =>
2})
      redirect_to(:action => ''results'')
    rescue
      redirect_to(:action => ''index'')
    end
  end

## in my worker

  def do_work(args)
    @logger.error = ''Booting hotfolder watcher...''
    device_manager = Dir::DirectoryWatcher.new(args[:dir], args[:delay])
    device_manager.name_regexp = /^[^.].*\.xml$/
    device_manager.on_add = Proc.new{ |the_file|
      @logger.error "Hey, just found #{the_file.inspect}!"
    }
  end

It doesnt error and returns a DRB object that persists, so i can only 
presume its working. However when i try to get it to log - so i can 
"see" its working - i just get errors in the backgroundrb log like..

undefined method `error='' for #<Logger:0x223e0a8> -
(NoMethodError)

OR

undefined method `debug='' for #<Logger:0x223e0a8> -
(NoMethodError)

depending on the method call i use. In usual rails code we can write 
logger.error(''some error message'') and it gets logged to the
enviroment
log. Whats the correct call i should be using to make it log correctly?

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