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POGetting module of caller in Ruby
 

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    <p>We have code to log data in our Ruby 1.8.6 web application. You call it roughly as follows:</p> <pre><code>$log.info("Some text here") </code></pre> <p>Now, in the logged output, I would like to include the module where that line appeared. I know that the <code>Kernel#caller</code> will give me an array where I can pull out the file and line number that the log line occurred, but I don't want that. I want the module, not the file name. The obvious solution is to modify the log line so that it reads like:</p> <pre><code>$log.info("Some text here", self.class.name) </code></pre> <p>and then parse the result. That's not going to work, though, because I am trying to extract this information in the default case. That is, I need the solution to work if the programmer forgot to specify the module, the second parameter to the log line.</p> <p>Is there any way to do this? If not, I will just have to make do with the <code>caller</code> array; most of our modules are in separate directories, so this would be an 80% solution.</p> <p>More complete example, please excuse minor syntax errors:</p> <p>in file log.rb:</p> <pre><code>module Log class Logger def info(msg, mod = '') puts "Module: #{mod} Msg: #{msg}" end end # class Logger end # module Log $log = Log::Logger.new </code></pre> <p>in file foo.rb:</p> <pre><code>module Foo class Bar def do_something # Do not pass in self.class.name. # We want the output to look like: # Module: Foo Msg: I did something! $log.info "I did something!" end end # class Bar end #module Foo </code></pre>
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    1. COI don't see how you can do it, unless to pass `self` or `binding` to the logger object. You'd have to parse the file with the information from `caller`, which I'm sure you don't want to do.
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      1. USglenn jackman
 

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