According to the Agile book,
“Rails ships with three acts as extensions: acts_as_list, acts_as_tree,
and acts_as_nested_set. Iâ€™ve chosen to document just the first two of
these; as this book was being finalized, the nested set variant had some
serious problems that prevent us from verifying its use with working
So, is it safe to use or not?
I’ve got a forum app, based originally on the RForum codebase, that
would seem to benefit greatly (performance-wise) from using
acts_as_nested_set instead of acts_as_tree.
What say you?