[Rails] Re: Working in install acts_as_commentable, On create, error: "unknown attribute: book_id"

Very interesting, new to me...

Does nesting currently work in your example app OR are you still
working on implementing
it? I'm trying to decide if nesting isn't yet done, if I should wait
until it's up and working?

On Sep 21, 1:49 pm, radhames brito <rbri...@gmail.com> wrote:
> oh , awsome nested set gem arrenges item like a tree , to is like
>
>                                              root
>                                                 |
>                                   ________|__________
>                            left  |            item             | right
>                       ______ |__           |      ______|______
>
> you see item has a left and right sibling, the gem saves ,   the parent_id
> of item , in this case root and the item of the item to the left and to the
> right

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