Add concerns for cookies_history

app/controllers/concerns/cookies_history.rb

+module CookiesHistory
+  def set_job_histories
+    if cookies[:job_ids_history].nil?
+      cookies[:job_ids_history] = { value: @job.id, expires: Time.now + 3600 }
+    else
+      arr_job_ids = cookies[:job_ids_history].split(",")
+      unless arr_job_ids.include? (@job.id.to_s)
+        arr_job_ids.shift if arr_job_ids.count == 10
+        arr_job_ids << @job.id.to_s
+      end
+      cookies[:job_ids_history] = { value: arr_job_ids.join(","), expires: Time.now + 3600 }
+    end
+  end
+end
\ No newline at end of file

app/controllers/jobs_controller.rb

 class JobsController < ApplicationController
+  include CookiesHistory
+
   def index
     if params[:city_id]
       @jobs = Job.by_cities(params[:city_id]).page(params[:page])
@@ -23,16 +25,7 @@ class JobsController < ApplicationController
       @favorite = Favorite.find_by(job_id: params[:id], user_id: current_user.id)
       History.create_history(params[:id], current_user.id)
     else
-      if cookies[:job_ids_history].blank?
-        cookies[:job_ids_history] = { value: @job.id, expires: Time.now + 3600 }
-      else
-        arr_job_ids = cookies[:job_ids_history].split(",")
-        unless arr_job_ids.include? (@job.id.to_s)
-          arr_job_ids.shift if arr_job_ids.count == 10
-          arr_job_ids << @job.id.to_s
-        end
-        cookies[:job_ids_history] = { value: arr_job_ids.join(","), expires: Time.now + 3600 }
-      end
+      set_job_histories
     end
     @relate_jobs = Job.related_jobs(@job.company_id, @job.id)
   end