panel/app/views/posts/attributes/_locales.haml

%fieldset
  %legend= post_label_t(attribute, post: post)

  = render 'posts/attribute_feedback',
    post: post, attribute: attribute, metadata: metadata

  - site.locales.each do |locale|
    - next if post.lang.value == locale
    - locale_t = t("locales.#{locale}.name")

    .form-group
      = label_tag "#{base}_#{attribute}_#{locale}", locale_t

      = select_tag("#{plain_field_name_for(base, attribute)}[]",
        options_for_select(metadata.values[locale]),
        **field_options(attribute, metadata), include_blank: t('.empty'))

      = render 'posts/attribute_feedback',
        post: post, attribute: attribute, metadata: metadata