panel/app/views/posts/_form.haml

- unless post.errors.empty?
  .alert.alert-danger
    %h4= t('.errors.title')
    %p= t('.errors.help')

-# TODO: habilitar form_for
:ruby
  if post.new?
    url = site_posts_path(site)
    method = :post
  else
    url = site_post_path(site, post.id)
    method = :patch
  end

-# Comienza el formulario
= form_tag url, method: method, class: 'form post', multipart: true do

  -# Botones de guardado
  = render 'posts/submit', site: site, post: post

  -# Dibuja cada atributo
  - post.attributes.each do |attribute|
    -# El borrador se muestra distinto
    - next if attribute == :draft

    - metadata = post.send(attribute)
    - type = metadata.type

    = render("posts/attributes/#{type}",
             post: post, attribute: attribute,
             metadata: metadata, site: site,
             autofocus: (post.attributes.first == attribute))

  -# Botones de guardado
  = render 'posts/submit', site: site, post: post