Count posts per layer in the view not the controller

app/controllers/layers_controller.rb

@@ -19,9 +19,6 @@ class LayersController < ApplicationController
     @feed = Feed.new
     @feed.new_layer_id = @layer.id
 
-    @layer_posts = 0
-    @layer.feeds.each { |f| @layer_posts += f.posts.size }
-
     respond_to do |format|
       format.html # show.html.erb
       format.json { render json: @layer }

app/views/layers/show.html.haml

@@ -24,8 +24,9 @@
     %th
     %th
     %th
-
+  - @layer_posts = 0
   - @layer.feeds.each do |f|
+    - @layer_posts += f.posts.count
     %tr
       %td
         .feed_title