force ars_id even when new ARS

admin/app/admin/ad_campaigns.rb

@@ -74,7 +74,6 @@ ActiveAdmin.register JamRuby::AdCampaign, as: 'AdCampaign' do
       else
         raw("? - #{campaign.joined}")
       end
-
     end
     column "Downloaded" do |campaign|
       raw(AdCampaignsHelper.spacer(campaign.downloaded, campaign.joined))

admin/app/controllers/arses_controller.rb

@@ -20,6 +20,7 @@ class ArsesController < ApplicationController
     if ars.nil?
       ars = Ars.new
       ars.name = name
+      ars.id_int = ars_id if !ars_id.nil?
     end
 
     ars.provider = provider