RouteWayCostWorker: Switch to referential in order to find Route

Just running `Chouette::Route.find(id)` doesn't give us anything if we
don't have a `Referential` selected. In order to properly get the
correct route, pass the referential ID to the worker and switch to that
referential before trying to select the route.

Refs #6095

2 files changed, 3 insertions, 2 deletions

diff --git a/app/models/chouette/route.rb b/app/models/chouette/route.rb
index f0fe06a58..01358e8aa 100644
--- a/app/models/chouette/route.rb
+++ b/app/models/chouette/route.rb
@@ -191,7 +191,7 @@ module Chouette
     end
 
     def calculate_costs!
-      RouteWayCostWorker.perform_async(id)
+      RouteWayCostWorker.perform_async(referential.id, id)
     end
 
     protected
diff --git a/app/workers/route_way_cost_worker.rb b/app/workers/route_way_cost_worker.rb
index adb10957b..fa5bd737d 100644
--- a/app/workers/route_way_cost_worker.rb
+++ b/app/workers/route_way_cost_worker.rb
@@ -1,7 +1,8 @@
 class RouteWayCostWorker
   include Sidekiq::Worker
 
-  def perform(route_id)
+  def perform(referential_id, route_id)
+    Referential.find(referential_id).switch
     route = Chouette::Route.find(route_id)
     RouteWayCostCalculator.new(route).calculate!
   end