mostrar todas las imagenes

app/models/post.rb

@@ -262,9 +262,11 @@ class Post
   # Detecta si un valor es un archivo
   def url?(name)
     path = get_front_matter(name)
-    return false unless path.is_a? String
+    return false unless path.is_a?(String) || path.is_a?(Array)
     # El primer valor es '' porque la URL empieza con /
-    path.split('/').second == 'public'
+    [path].flatten.map do |p|
+      p.split('/').second == 'public'
+    end.all?
   end
 
   def image?(name)

app/views/posts/template_field/_image.haml

@@ -1,5 +1,8 @@
 - if @post.url? name
-  %img.img-fluid{src: @site.get_url_for_sutty(@post.get_front_matter(name))}
+  .row
+    - [@post.get_front_matter(name)].flatten.each do |url|
+      .col
+        %img.img-fluid{src: @site.get_url_for_sutty(url)}
 - name = [name,''] if template.multiple?
 = file_field_tag field_name_for_post_as_string(name),
   class: 'form-control',