Can't push in array in recursive function in Ruby / RoR

Question

I want to manipulate the following locales .yml file in Ruby On Rails:

fr: back: Retour signup: Inscription helpers: submit: create: "Créer votre %{model}" hello: world: "Bonjour le monde"

So I parse it in my controller like :

@yml_hash = YAML.load_file("config/locales/en.yml")

Then I process it with the following helper in my html.erb file :

module TranslationHelper

    def render_hash(hash)
        return ihash(hash)
    end

    def ihash(h, key = [], result = [])
        h.each_pair do |k,v|
            if v.is_a?(Hash)
                key << k
                ihash(v, key, result)
            else
                result << {full_key: key, key: k, value: v}
            end
        end
        result
    end

end

And it's return the output:

[{:full_key=>["fr", "helpers", "submit", "hello"], :key=>"back",
  :value=>"Retour"},
 {:full_key=>["fr", "helpers", "submit", "hello"], :key=>"signup",
  :value=>"Inscription"},
 {:full_key=>["fr", "helpers", "submit", "hello"], :key=>"create",
  :value=>"Créer votre %{model}"},
 {:full_key=>["fr", "helpers", "submit", "hello"], :key=>"world",
  :value=>"Bonjour le monde"}]

---

But actually my goal is to have the full key of a value in the hash like this:

[{:full_key=>["fr"], :key=>"back", :value=>"Retour"},
 {:full_key=>["fr"], :key=>"signup", :value=>"Inscription"},
 {:full_key=>["fr", "helpers", "submit"], :key=>"create", :value=>"Créer votre %{model}"},
 {:full_key=>["fr", "hello"], :key=>"world", :value=>"Bonjour le monde"}]

Is there any way to handle hash in my function in order to have those kind of results?

Thanks.

Answer 1

I think you need to use clone method to make new array because refer to same array object (key << k)

Correct:

def ihash(h, key = [], result = [])
  h.each_pair do |k,v|
    if v.is_a?(Hash)
      new_key = key.clone
      new_key << k
      ihash(v, new_key, result)
    else
      result << {full_key: key, key: k, value: v}
    end
  end
  result
end

Happy coding!