Unable to register constants

Ruby
1

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

2

Matthew P. schrieb:

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

(…)

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…

Matt, your code (minus the Rails dependencies) did work for me with a
very simple test case. Could you show us your test program?

Regards,
Pit