From: Ross X Dawson <Ross.Dawson@...>
Date: 2007-10-11T14:31:50+09:00
Subject: Using strings to drill down into objects

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Folks,
      I'm writing a reporting application where I'm passing in an array of
method calls to populate a table

e.g.

    # lambda function to drill down object hierarchy
    drill_down = lambda do |obj, method_name|
                          o ||= obj
                          method_name.split('.').each {|m| o = o.send(m) if
o.respond_to?(m)}
                          o
                  end

methods = ['lookup1.code', 'lookup1.name']

report_value = drill_down.call(my_object_with_lookups, methods)


I'm sure there is a better "Ruby" way of doing this.  Can someone offer
some advice?


Ross Dawson
Developer
Data Management & Reporting
Link Administration Services

Tel Direct: (03) 9633 8165
Tel Office: (03) 9633 8000
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