Classy Inheritance

I implemented the following changes to add support for the :class options for depends_on and also added support for a configurable prefix and postfix. I needed these changes to work with Globalize because I had too many mysql text columns in one row. I created a separate description_localization model to contain my localized descriptions and tagged them with the language code. I'm also including the patch to globalize to call localized methods instead of attributes in case anybody else is interested, but it's only relevant for keep_translations_in_model. The classy inheritance patch should be of general interest I think.

classy-inheritance.rb

@ -50,7 +50,7 @
define_find_with_method(model_sym) - define_can_be_method_on_requisite_class(model_sym, options[:as])
+ define_can_be_method_on_requisite_class(options[:class_name] || model_sym, options[:as])
end @ -78,7 +78,7 @
private - [:as, :attrs, :prefix, :validates_presence_if, :validates_associated_if]
+ [:as, :attrs, :prefix, :postfix, :validates_presence_if, :validates_associated_if]
end @ -145,7 +145,8 @
end - accessor_method_name = ( options[:prefix] ? "#{model_sym}_#{attr}" : attr)
+ accessor_method_name = ( options[:prefix] ? "#{options[:prefix] true ? model_sym : options[:prefix]}_#{accessor_method_name}" : accessor_method_name)
+ accessor_method_name = ( options[:postfix] ? "#{attr}_#{options[:postfix] true ? model_sym : options[:postfix]}" : attr)

define_method accessor_method_name do

  eval("self.#{model_sym} ? self.#{model_sym}.#{attr} : nil")

db_translate.rb from globalize

@ -465,7 +465,7 @
def #{facet}=(value)
unless Locale.base?
localized_method = "#{facet}_\#{Locale.language.code}"
- write_attribute(localized_method.to_sym, value) if respond_to?(localized_method.to_sym)
+ send("\#{localized_method}=", value) if respond_to?(localized_method.to_sym)
else
write_attribute(:#{facet}, value)
end