usar guards

app/controllers/stats_controller.rb

@@ -29,31 +29,31 @@ class StatsController < ApplicationController
 
   # Genera un gráfico de visitas por dominio asociado a este sitio
   def host
-    if stale? [last_stat, hostnames, interval]
-      stats = Rollup.where_dimensions(host: hostnames).multi_series('host', interval: interval).tap do |series|
-        series.each do |serie|
-          serie[:name] = serie.dig(:dimensions, 'host')
-          serie[:data].transform_values! do |value|
-            value * nodes
-          end
+    return unless stale? [last_stat, hostnames, interval]
+
+    stats = Rollup.where_dimensions(host: hostnames).multi_series('host', interval: interval).tap do |series|
+      series.each do |serie|
+        serie[:name] = serie.dig(:dimensions, 'host')
+        serie[:data].transform_values! do |value|
+          value * nodes
         end
       end
-
-      render json: stats
     end
+
+    render json: stats
   end
 
   def resources
-    if stale? [last_stat, interval, resource]
-      options = {
-        interval: interval,
-        dimensions: {
-          deploy_id: @site.deploys.where(type: 'DeployLocal').pluck(:id).first
-        }
-      }
+    return unless stale? [last_stat, interval, resource]
 
-      render json: Rollup.series(resource, **options)
-    end
+    options = {
+      interval: interval,
+      dimensions: {
+        deploy_id: @site.deploys.where(type: 'DeployLocal').pluck(:id).first
+      }
+    }
+
+    render json: Rollup.series(resource, **options)
   end
 
   private