refactor: convertir lista de errores en un componente

app/views/posts/_errors.haml

@@ -0,0 +1,19 @@
+- unless post.errors.empty?
+  - title = t('.errors.title')
+  - help = t('.errors.help')
+  = render 'bootstrap/alert' do
+    %h4= title
+    %p= help
+
+    %ul
+      - post.errors.each do |attribute, errors|
+        - if errors.size > 1
+          %li
+            %strong= post_label_t attribute, post: post
+            %ul
+              - errors.each do |error|
+                %li= error
+        - else
+          %li
+            %strong= post_label_t attribute, post: post
+            = errors.first

app/views/posts/_form.haml

@@ -1,22 +1,4 @@
-- unless post.errors.empty?
+= render 'errors', post: post
-  - title = t('.errors.title')
-  - help = t('.errors.help')
-  = render 'bootstrap/alert' do
-    %h4= title
-    %p= help
-
-    %ul
-      - post.errors.each do |attribute, errors|
-        - if errors.size > 1
-          %li
-            %strong= post_label_t attribute, post: post
-            %ul
-              - errors.each do |error|
-                %li= error
-        - else
-          %li
-            %strong= post_label_t attribute, post: post
-            = errors.first
 
 -# TODO: habilitar form_for
 :ruby
@@ -55,3 +37,11 @@
 
 -# Formularios usados por los modales
 = yield(:post_form)
+
+-#
+  Acumulador de formularios dinámicos, se van cargando a medida que se
+  necesitan en lugar de recursivamente.
+
+  Nunca se eliminan los modales una vez que se cargan para poder tener
+  historial de cambios.
+%div{ data: { controller: 'htmx', action: 'htmx:getUrl@window->htmx#beforeend' } }

app/views/posts/_htmx_form.haml

@@ -47,25 +47,7 @@
   end
 
 = form_tag url, **options do
-  - unless post.errors.empty?
+  = render 'errors', post: post
-    - title = t('.errors.title')
-    - help = t('.errors.help')
-    = render 'bootstrap/alert' do
-      %h4= title
-      %p= help
-
-      %ul
-        - post.errors.each do |attribute, errors|
-          - if errors.size > 1
-            %li
-              %strong= post_label_t attribute, post: post
-              %ul
-                - errors.each do |error|
-                  %li= error
-          - else
-            %li
-              %strong= post_label_t attribute, post: post
-              = errors.first
 
   -# Parámetros para HTMX
   %input{ type: 'hidden', name: 'hide', value: pluck_param((post.errors.empty? ? :show : :hide), optional: true) }