From: Zouplaz <user@...>
Date: 2007-04-19T01:05:05+09:00
Subject: Recursive method not working

Hi, I'm trying to display a hierarchical tree but there's something 
wrong with the method below.
The result var is 'lost' between the calls - I mean, each "#{result}" 
contains the right value at the end of the method (I checked that), but 
that value is lost when returning to the upper level.

I don't see why...

Thanks for your help !

def affiche_arbre(rubriques)
     for rubrique in rubriques
       result = '<br/>'
       0.step(rubrique.level) { result += '&nbsp;'}
       result += rubrique.libelle + ' ' + link_to('+', :action => 'new', 
:parent_id => rubrique) + ' '
       unless rubrique.parent_id == nil
         result += link_to('E', :action => 'edit', :id => rubrique) + ' 
' + link_to('D', :action => 'delete', :id => rubrique )
       end
       if rubrique.children.size > 0
         result += affiche_arbre(rubrique.children)
       end
     end
     "#{result}"
end