Am 21.08.2009 um 12:19 schrieb jhaagmans:
> @attributes = root_attribute.self_and_descendants
>
> However, when I put the following in my views to be able to descend
> into the model:
>
> <% @attributes.root.children.each do |attribute| %>
> ...
> <% end %>
I think I now see where the problem is. To be quite honest, I'm
surprised this even works, because @attributes is a set, and you
shouldn't be able to call root on it. Anyway, self_and_descendants
gets you a flat set, from which you could reconstruct a tree on your
own, but I don't think that would be that easy.
What I can come up right now is a way to cut the calls down to the
number of nodes with children with something like:
"""
def my_awesome_helper(root)
result = "<ul>" + "<li>" + root.someattribute
if root.children {
root.children.each do |child|
result += my_awesome_helper(child)
end
end
result += "</li>" + "</ul>"
end
"""
(yeah, ugly, and I'm not even sure the syntax is right, but you get
the idea)
You'd then just have to call the helper on the root node in your view.
Mit freundlichen Grüßen,
Felix Schäfer
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