before_action

app/controllers/posts_controller.rb

@@ -7,6 +7,7 @@ class PostsController < ApplicationController
 
   before_action :authenticate_user!, :except => [:show, :iframe, :oembed, :interactions]
   before_action :set_format_if_malformed_from_status_net, :only => :show
+  before_action :find_post, :only => [:show, :interactions]
 
   use_bootstrap_for :show