Middleman Frontmatter YAML list

Question

I just want to make a simple each loop in my Middleman helper, datas are stored in my page'Frontmatter like this :

dir:
  - test
  - test2

So in my helper, I try to write my loop :

def translate_directory
  current_page.data.dir.each do |dir|
    dir
  end
end

call my method in my page

<%= translate_directory %>

and this is what's display :

["test", "test2"]

---

But now, if I make the same loop in my page, write with ERB syntax :

<% current_page.data.dir.each do |x| %>
  <%= x %>
<% end %>

the exit is the following

test test2

separated in two strings, so exactly what I want.

---

EDIT : when I puts the helper'method, it display the two strings in two lines, so in two separated strings. Don't understand why it appear as an array on my browser.

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EDIT 2 : a little thing I forgot, I want to translate each word with I18n.translate, like this :

def path_translate
  current_page.data.dir.each { |dir| t("paths.#{dir}", locale: lang) }
end

but i can't because the each method doesn't work so I18n can't translate each word.

Answer 1

My bad. Using .map instead of .each fix the problem, then use .join makes the array a big string.

Answer 2

Because your helper is returning an array not a interpolated string like the ERB template is doing. Try the following for your helper:

def translate_directory
  current_page.data.dir.join(' ')
end