poder crear un archivo nuevo sin traducciones

app/controllers/posts_controller.rb

@@ -17,13 +17,13 @@ class PostsController < ApplicationController
   def new
     @lang = find_lang
     @site = find_site
-    @post = Post.new(site: @site, front_matter: { date: Time.now })
+    @post = Post.new(site: @site, front_matter: { date: Time.now }, lang: @lang)
   end
 
   def create
     @lang = find_lang
     @site = find_site
-    @post = Post.new(site: @site, front_matter: post_params.to_hash)
+    @post = Post.new(site: @site, front_matter: post_params.to_hash, lang: @lang)
 
     if @post.save
       redirect_to site_posts_path(@site, lang: @lang)

app/models/post.rb

@@ -81,7 +81,10 @@ class Post
   end
 
   def find_translations
-    get_front_matter('lang').map do |lang, id|
+    slugs = get_front_matter('lang')
+    return [] unless slugs.present?
+
+    slugs.map do |lang, id|
       next if lang == @lang
       @site.posts_for(lang).find do |p|
         p.id == id

app/views/posts/_form.haml

@@ -121,7 +121,7 @@
       = label_tag 'post_lang', t("posts.lang.#{lang}")
       = select_tag "post[lang][#{lang}]",
         options_for_select(@site.posts_for(lang).map { |p| [p.title, p.id] },
-        @post.get_front_matter(:lang).dig(lang)),
+        @post.get_front_matter(:lang).try(:dig, lang)),
         { class: 'form-control select2' }
       %small.text-muted.form-text= t('posts.lang_help')
   .form-group