diff --git a/app/models/post.rb b/app/models/post.rb
index d0253a7..0123a80 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -378,8 +378,10 @@ class Post
 
   # Ejecuta la acción de guardado en cada atributo.
   def save_attributes!
-    attributes.map do |attr|
-      self[attr].writable? && self[attr].save
+    attributes.select do |attr|
+      self[attr].writable?
+    end.map do |attr|
+      self[attr].save
     end.all?
   end
 end