How to return Full path in File_field?

Hello,

I have put a file_field on my form and it is working but instead of
returning the full PATH+filename it only returns filename. On screen
when I pick a file it shows Path+filename but when submited only
filename goes through

Heres the controller thing

def pickfile
if request.post?
puts params[:foo][:filepath]
end
end

and view

Arquivo de Fatura

<%= file_field “foo”, “arquivo_fatura” %>

apreciate any help
coelho

Just making small correction I meant to write

File

<%= file_field “foo”, “filepath” %>