Saving hashes to file on Ruby

Question

I\'m just giving my first steps in programming. I have just finished another class in Code Academy. This time I was asked to create a small movie catalog. Here is my questio

Answer 1

You can simply use JSON, like this

require 'json'

FILE_PATH = "catalogue.json"

def load
  data = nil
  File.open(FILE_PATH) do |f|
    data = JSON.parse(f.read)
  end
  data
end

def save(data)
  File.open(FILE_PATH, "w+") do |f|
    f << data.to_json
  end
end

def process
  catalogue = load

  p catalogue

  catalogue["Memento"] = 4
  save(catalogue)
end

process
# => {"Memento"=>3, "Primer"=>4, "Ishtar"=>1}
catalogue = load

p catalogue
# {"Memento"=>4, "Primer"=>4, "Ishtar"=>1}