From 3fa6ca4e1eb5c600a81232b394dd9e374c054054 Mon Sep 17 00:00:00 2001
From: f <f@sutty.nl>
Date: Tue, 12 May 2020 12:50:22 -0300
Subject: [PATCH] =?UTF-8?q?invalidar=20la=20cach=C3=A9=20si=20el=20post=20?=
 =?UTF-8?q?cambia?=
MIME-Version: 1.0
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---
 app/models/post.rb | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/app/models/post.rb b/app/models/post.rb
index 36b36e2..e3ada41 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -75,10 +75,21 @@ class Post < OpenStruct
     'posts/' + uuid.value
   end
 
+  def cache_version
+    updated_at.utc.to_s(:usec)
+  end
+
+  # Agregar el timestamp para saber si cambió, siguiendo el módulo
+  # ActiveRecord::Integration
+  def cache_key_with_version
+    cache_key + '-' + cache_version
+  end
+
   # TODO: Convertir a UUID?
   def id
     path.basename
   end
+  alias to_param id
 
   def updated_at
     File.mtime(path.absolute)