-#

  Genera un modal completo con el formulario del post y sus botones de
  guardado.

  Se comporta como "HTMX".


:ruby
  post = @post
  site = post.site
  locale = @locale
  base = random_id
  dir = t("locales.#{locale}.dir")
  modal_id = pluck_param(:modal_id)
  result_id = pluck_param(:result_id)
  form_id = random_id
  except = %i[date]
  options = {
    id: form_id,
    multipart: true,
    class: 'form post'
  }

  if post.new?
    url = options[:'hx-post'] = site_posts_path(site, locale: locale)
    options[:class] += ' new'
  else
    url = options[:'hx-patch'] = site_post_path(site, post.id, locale: locale)
    options[:method] = :patch
    options[:class] += ' edit'
  end

  data = {}
  data[:controller] = 'unsaved-changes form-validation'
  data[:action] = 'unsaved-changes#submit form-validation#submit beforeunload@window->unsaved-changes#unsaved turbolinks:before-visit@window->unsaved-changes#unsavedTurbolinks'

  options[:data] = data

%div{ id: modal_id, data: { controller: 'modal'  }}
  = render 'bootstrap/modal', id: modal_id, modal_content_attributes: { class: 'h-100' } do
    - content_for :"#{modal_id}_body" do
      = form_tag url, **options do
        = hidden_field_tag 'base', base
        = hidden_field_tag 'result_id', result_id
        = hidden_field_tag 'modal_id', modal_id
        = hidden_field_tag "#{base}[layout]", post.layout.name

        = render 'errors', post: post
        = render 'posts/attributes', site: site, post: post, dir: dir, base: base, locale: locale, except: except
        -# @todo Volver obligatorios?
        - except.each do |attr|
          %input{ type: 'hidden', name: "#{base}[#{attr}]", value: pluck_param(attr, optional: true) }

    - content_for :"#{modal_id}_footer" do
      -# = render 'posts/validation', site: site, invalid: { id: invalid_id }, submitting: { id: submitting_id }
      -# = render 'bootstrap/alert', class: 'm-0 d-none fade', id: saved_id, data: { controller: 'notification', action: 'notification:show@window->notification#show', 'notification-hide-class': 'hide', 'notification-show-class': 'show' } do
        = t('.saved')
      = render 'bootstrap/btn', form: form_id, content: t('.save'), type: 'submit', class: 'm-0 mt-1 mr-1'
      = render 'bootstrap/btn', content: t('.close'), action: 'modal#hide', class: 'm-0 mt-1 mr-1'
  = yield(:post_form)