From: Matthew Painter <mail@...>
Date: 2006-09-20T00:11:00+09:00
Subject: Unable to register constants

Hi guys... not sure why setting constants here isn't working!?! Here's 
the code:

  class Module

    @@dynamically_created_models ||= Hash.new

    alias :normal_const_missing :const_missing

    def const_missing(class_id)

      begin
        return normal_const_missing(class_id)
      rescue
      end

      puts "Looking for unintialized model #{class_id}"

      if @@dynamically_created_models[class_id]
        puts "*** Constant not set correctly, getting from class 
variable..."
        return @@dynamically_created_models[class_id]
      end

      # Can we auto generate this model class?
      unless table_name = DrNicMagicModels::Schema.models[class_id]
        raise NameError.new("uninitialized constant #{class_id}")
      end

      klass = Class.new(ActiveRecord::Base)
      klass.class_eval do
        set_table_name table_name
      end

      @@dynamically_created_models[class_id] = klass
      const_set class_id, klass

      return const_get(class_id) rescue raise("Cannot set constant 
#{class_id}")
    end

  end

Sure enough, when i run a small test program, part of the output is:

  Looking for unintialized model Group
  *** Constant not set correctly, getting from class variable...

Any help gratefully received!

Thanks,

Matt

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