Rails - May 2006 - acts_as_nested_set does not work (in my case).

Hello,

I am using acts_as_nested_set. My problem is that the columns "lft"
and
"rgt" get the value 0 if I create a new entity. If I delete an entity
I
get negative values (-1, -2, -3) - but for all entities. Is there 
anything missing? Is there any example for "acts_as_nested_set" in the
web?

-- 
Posted via http://www.ruby-forum.com/.

Oliver,

When you create a new object it does not kick in. It does when you add a
child to another object. Then the nested set can actually work its magic.

p = Category.create :title => "Parent"
c = Category.create :title => "Child"
p.add_child c

p.lft --> 1
p.rgt --> 4
c.lft --> 2
c.rgt --> 3

Hope that helps,


Adrian Madrid


On 5/10/06, Oliver Paulus <oliver@code-project.org>
wrote:
>
> Hello,
>
> I am using acts_as_nested_set. My problem is that the columns
"lft" and
> "rgt" get the value 0 if I create a new entity. If I delete an
entity I
> get negative values (-1, -2, -3) - but for all entities. Is there
> anything missing? Is there any example for "acts_as_nested_set"
in the
> web?
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>


-- 
Adrian Esteban Madrid
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