CODEWITHSUNDEEP
arraysrubyhash
nounoursnoir
nounoursnoir

Reputation: 703

Ruby: puts a variable's value and name

I have a hash of hashes of arrays:

hash = Hash.new do |hash, key|
    hash[key] = Hash.new do |hash, key|
        hash[key] = Array.new
    end
end

I also have a loop that gets the values of 3 variables:

author = gets.chomp
file = gets.chomp
time = Time.now

These 3 variables correspond to the 3 generations of my hash: author is the first generation variable, and is equal to a hash; file is the second generation variable, and is equal to an array; time is the third generation variable, and is equal to a simple value.

This is how I intended to assign the values to the hash:

hash[author][file] = file
hash[author][file].push(time)

My problem is that when I want to implement an author and a file in the hash, I think that I destroy the second generation hash or the array and set the variable equal to a simple value instead:

hash[author][file] = file      #here, instead of adding a new key in the 2nd generation hash, I replace the hash with a single value.
hash[author][file].push(time)  #the "file" variable isn't an array anymore, it is a string, so I can't push anything in it.

Can I do something like pushing a value in a hash, so it becomes a key?

If not, how can I have something that would give me this result:

CODE:

hash = {1 => {"a1" => ["un", "uno"], "a2" => ["uunn", "uunnoo"]}, 2 => {"b1" => ["deux", "dos"], "b2" => ["ddeuxx", "ddooss"]}}

hash.each do |key, value|
    puts key
    value.each do |key, value|
        puts key
        value.each do |value|
            puts value
        end
    end
end

RESULT:

1
a1
un
uno
a2
uunn
uunnoo
2
b1
deux
dos
b2
ddeuxx
ddooss

Upvotes: 1

Views: 581

Answers (1)

max pleaner
max pleaner

Reputation: 26778

Rather then setting the value to a string here:

hash[author][file] = file

You can set the string as a value of a key:

hash[author][file][:file] = file

And then let the array be another property

hash[author][file][:times] ||= []
hash[author][file][:times].push time

Upvotes: 1

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