I''ve added a method in my Forum model code just for this:
def descendants
children.map { |f| !f.children.empty? ? f.children + [f]:
f }.flatten
end
def self.find_all_without_parent
find_all_by_parent_id(nil)
end
It finds all the descendants of a given forum, you could just cycle
through all top-level forums using the Forum.find_all_without_parent
method and just query about the descendants of each item. I believe my
solution will give you a flat version of them however.
On 31/07/2008, at 1:41 PM, Joshua Abbott wrote:
>
> I''m using acts_as_tree to nest categories n-levels deep and am
> wondering
> if anyone out there in Ruby-land knows the best, least expensive way
> to
> start with top level categories and then loop recursively through each
> category going as many levels deep as needed, and then moving to the
> next top level category, etc.
>
> Thanks,
> Josh
> --
> Posted via http://www.ruby-forum.com/.
>
> >
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---