class TaggableModel < ActiveRecord::Base
  acts_as_taggable
  acts_as_taggable_on :languages
  acts_as_taggable_on :skills
  acts_as_taggable_on :needs, :offerings
end

class CachedModel < ActiveRecord::Base
  acts_as_taggable
end

class OtherTaggableModel < ActiveRecord::Base
  acts_as_taggable_on :tags, :languages
  acts_as_taggable_on :needs, :offerings
end

class InheritingTaggableModel < TaggableModel
end

class AlteredInheritingTaggableModel < TaggableModel
  acts_as_taggable_on :parts
end

class TaggableUser < ActiveRecord::Base
  acts_as_tagger
end

class UntaggableModel < ActiveRecord::Base
end

# if ActiveRecord::VERSION::MAJOR < 3
#   [TaggableModel, CachedModel, OtherTaggableModel, InheritingTaggableModel,
#    AlteredInheritingTaggableModel, TaggableUser, UntaggableModel].each do |klass|
#     klass.send(:include, ActsAsTaggableOn::ActiveRecord::Backports)
#   end
# end