Rails - Feb 2006 - Newbie seeks helps ordering ancestors from acts_as_tree

I''m sure this is really obvious but I''m feeling my way here
with rails
(and Ruby) and have tried a couple of things without success. So, can 
anyone tell me the best way to reverse order the retuen list of 
ancestors.
In the controller I have:
@ancestors = @category.ancestors
which returns an array starting at the parent and ending with the root.

When I then loop through the array to create a breadcrumb list:
<% @ancestors.each do |ancestor| %>
<%= link_to h(ancestor.name), :action =>"show", :id =>
ancestor.id %> >
<% end %>

I get the breadcrumb list but in the wrong order:
parent > grandparent > root

Should I be changing the order in the controller or the loop. If so, how 
(zero Ruby skills, as you can prob tell -- pickaxe book on order!)
Thanks
Chris T

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> When I then loop through the array to create a breadcrumb list:
> <% @ancestors.each do |ancestor| %>
> <%= link_to h(ancestor.name), :action =>"show", :id =>
ancestor.id %> >
> <% end %>
> 
> I get the breadcrumb list but in the wrong order:
> parent > grandparent > root
> 

Try using the Array method reverse or reverse!. I''m pretty new myself 
but I think you can string your methods together and do

<% @ancestor.reverse.each do |ancestor| %>

Check out the online Ruby documenation, http://corelib.rubyonrails.org/. 
I use them alot.

William

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

William LeFevre wrote:
> 
>> When I then loop through the array to create a breadcrumb list:
>> <% @ancestors.each do |ancestor| %>
>> <%= link_to h(ancestor.name), :action =>"show", :id
=> ancestor.id %> >
>> <% end %>
>> 
>> I get the breadcrumb list but in the wrong order:
>> parent > grandparent > root
>> 
> 
> 
> Try using the Array method reverse or reverse!. I''m pretty new
myself
> but I think you can string your methods together and do
> 
> <% @ancestor.reverse.each do |ancestor| %>
> 
> Check out the online Ruby documenation, http://corelib.rubyonrails.org/. 
> I use them alot.
> 
> William
Doh! Yup that worked great. Obviously didn''t look properly in the ruby 
docs. Many thanks!
Chris

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