Script to migrate from Globalize1 to Globalize2 model translations

migrate_model_translations_from_globalize1.rb

require 'config/environment.rb'

class GlobalizeCountry < ActiveRecord::Base
end

class GlobalizeLanguage < ActiveRecord::Base
end

class GlobalizeTranslation < ActiveRecord::Base
  belongs_to :language, :class_name => "GlobalizeLanguage"
end

class ModelTranslation < GlobalizeTranslation
end

class ViewTranslation < GlobalizeTranslation
end

translated = {"Category" => ["name","description"],
  "Product" => ["title","description"],
  "News" => ["title", "content"]}

#first the default:
def_lang = GlobalizeLanguage.find_by_iso_639_1(I18n.default_locale.to_s)

translated.each do |classname, fields|
  puts "Migrating #{classname} for language #{def_lang.english_name}"
  klass = Kernel.const_get(classname)
  klass.find(:all).each do |instance|
    fields.each do |field|
      assign_method = (field + "=").to_sym
      instance.send(assign_method, instance.attributes[field]) if instance.send(field.to_sym).nil?
    end
    instance.save
  end
end

#model translations based on globalize translations
#how many different languages are really there (in model translations)?
glob_lang_ids = ModelTranslation.find(:all, :group => "language_id").collect{|mt| mt.language_id}

glob_lang_ids.each do |glob_lang_id|
  glob_lang = GlobalizeLanguage.find(glob_lang_id)
  I18n.locale = glob_lang.iso_639_1.to_sym
  
  translated.each do |classname, fields|
    klass = Kernel.const_get(classname)
    puts "Migrating #{classname} with tablename #{klass.table_name} for language #{glob_lang.english_name}"
    puts "Locale for migration: #{I18n.locale.to_s}"
    klass.find(:all).each do |instance|
      fields.each do |field|
        mt = ModelTranslation.find_by_language_id_and_table_name_and_item_id_and_facet(glob_lang_id, klass.table_name, instance.id, field)
        next if mt.nil?
        assign_method = (field + "=").to_sym
        instance.send(assign_method, mt.text)
      end
      instance.save
    end
  end
end