From: Simon Strandgaard <neoneye@...>
Date: 2005-10-22T05:03:37+09:00
Subject: Re: array in hash... argh!!

On 10/21/05, Marco <z@a.b> wrote:
[snip]
> and i wold like to get 3 hashes like tese:
>


h = {
    "title"=>["ciccio", "test", "ciccio panza"],
    "id"=>["3", "4", "1"],
    "description"=>["1", "", "hey?"],
    "insert_date"=>["2005-10-19", "2005-10-20", "2005-10-18"]
}

vals = h.map{|k,v| v}.transpose
keys = h.map{|k,v| k}
ary_of_pairs = vals.map{|ary| keys.zip(ary)}
res = ary_of_pairs.map{|pairs| Hash[*pairs]}
puts res.map{|hash| hash.inspect }.join("\n")


=begin
output:

{["title", "ciccio"]=>["id", "3"], ["description",
"1"]=>["insert_date", "2005-10-19"]}
{["description", ""]=>["insert_date", "2005-10-20"], ["title",
"test"]=>["id", "4"]}
{["title", "ciccio panza"]=>["id", "1"], ["description",
"hey?"]=>["insert_date", "2005-10-18"]}

=end

--
Simon Strandgaard