Franz,
Try what dm-is-remixable does in such a situation:
http://is.gd/zmyc
Since auto_upgrade! is a class method you should be fine to do
class Zoo
include DataMapper::Resource
def self.auto_upgrade!(args = nil)
DataMapper.logger.warn("Skipping #{
self.name}.auto_upgrade! for
whatever reason")
end
end
Hope that helps
cheers
snusnu