Log4r and rails

Rails
1

Hey there folks. I would really like to use log4r as my default logger
in Rails, but I’m having a hard time getting it to work. I’m not even
sure I’m plugging it in in the right place. I’m using log4r 1.0.5 and
rails 1.1.1.

I would love it if someone could either point me to a good tutorial on
how to use log4r with rails, or at least point me in the right direction
as far as how to configure/set it up.

Thanks a lot!

2

me too!! sorry, i don’t have the answer to this question, but today i’ve
been trying to figure out how to use for a client’s project, and i can’t
figure it out either! i thought i was the idiot!

i’m also using 1.0.5 of log4r, as well as rails 1.1.2, and lighttpd
1.4.11.

does anyone out there know how to configure log4r with rails??

thanks peeps.
-mark

Helium Exchange wrote:

Hey there folks. I would really like to use log4r as my default logger
in Rails, but I’m having a hard time getting it to work. I’m not even
sure I’m plugging it in in the right place. I’m using log4r 1.0.5 and
rails 1.1.1.

I would love it if someone could either point me to a good tutorial on
how to use log4r with rails, or at least point me in the right direction
as far as how to configure/set it up.

Thanks a lot!

3

Fino Fontana wrote:

Any progress on this subject? Also an example of a simple xml
configuration would be welcome. The log4r manual and xml example a
rather poor (with due respect to the maker of log4r himself, as I think
log4r is very promising)

Thanks,
Fino

This is how I got it working:

Assuming Rails and Log4R installed:

  1. In the config directory I have a configuration file called
    log4r_config.xml with the following contents:

<log4r_config>

<pre_config>
<custom_levels>DEBUG, INFO, WARN, ERROR, FATAL</custom_levels>

</pre_config>

<!-- Outputters -->
<outputter name="console" type="StdoutOutputter" level="DEBUG" >
	<formatter type="Log4r::PatternFormatter">
		<pattern>=>[%5l %d] %C: %M [%t]</pattern>
	</formatter>
</outputter>

<outputter name="file_outputter" type="FileOutputter">
	<filename>log/working_time.log</filename>
	<formatter type="Log4r::PatternFormatter">
		<pattern>=>[%5l %d] %C: %M [%t]</pattern>
	</formatter>
</outputter>

<!-- Loggers -->
<logger name="WorkingDayControllerLogger"
            level="ALL" additive="false" trace="true">
	<outputter>console</outputter>
	<outputter>file_outputter</outputter>
</logger>

<logger name="WorkingTimeControllerLogger"
            level="ALL" additive="false" trace="true">
	<outputter>console</outputter>
	<outputter>file_outputter</outputter>
</logger>

</log4r_config>

  1. In the helper directory I have a class LogInitializer, which
    initializes the Log4r system and loads config/log4r_config.xml:

class LogInitializer

require ‘log4r’
require ‘log4r/configurator’
include Log4r

def init()
puts “==>LogInitializer: Starting initialization of loggers”
Configurator[‘logpath’] = ‘./config’ # was ‘./logs’
puts ("==>LogInitializer: Loading xml config")
Configurator.load_xml_file(‘config/log4r_config.xml’)
puts ("==>LogInitializer: Xml config Loaded")
puts “==>LogInitializer: Loggers initialized”
end

end

  1. In environment.rb I load and run LogInitializer:

#Initializing loggers
require ‘log_initializer’
li = LogInitializer.new
li.init()

  1. In the source of a class I define a logger as follows:

class WorkingDayController < ApplicationController

Logging

require ‘log4r’
require ‘log4r/configurator’
include Log4r
@@my_log = Logger[“WorkingDayControllerLogger”]
…
end

  1. In the source of a class I use a logger as follows:
    def index
    @@my_log.debug(“in index”)
    list
    render :action => ‘list’
    end

Hope this will help.

:regards => Fino

4

Mark B. wrote:

me too!! sorry, i don’t have the answer to this question, but today i’ve
been trying to figure out how to use for a client’s project, and i can’t
figure it out either! i thought i was the idiot!

i’m also using 1.0.5 of log4r, as well as rails 1.1.2, and lighttpd
1.4.11.

does anyone out there know how to configure log4r with rails??

thanks peeps.
-mark

Helium Exchange wrote:

Hey there folks. I would really like to use log4r as my default logger
in Rails, but I’m having a hard time getting it to work. I’m not even
sure I’m plugging it in in the right place. I’m using log4r 1.0.5 and
rails 1.1.1.

I would love it if someone could either point me to a good tutorial on
how to use log4r with rails, or at least point me in the right direction
as far as how to configure/set it up.

Thanks a lot!

Any progress on this subject? Also an example of a simple xml
configuration would be welcome. The log4r manual and xml example a
rather poor (with due respect to the maker of log4r himself, as I think
log4r is very promising)

Thanks,
Fino