Small improvement for update price. Removed delayed job.

Attention, every delayed job has to know its Foodcoop scope. Otherwise
every task will be executed in the default database. See email delivery.

app/models/group_order.rb

@@ -76,7 +76,7 @@ class GroupOrder < ActiveRecord::Base
 
   # Updates the "price" attribute.
   def update_price!
-    total = group_order_articles.includes(:order_article => :article).all.map(&:total_price).sum
+    total = group_order_articles.includes(:order_article => [:article, :article_price]).to_a.sum(&:total_price)
     update_attribute(:price, total)
   end
 

app/models/order.rb

@@ -164,10 +164,10 @@ class Order < ActiveRecord::Base
         end
 
         # Update GroupOrder prices
-        group_orders.each { |go| go.update_price! }
+        group_orders.each(&:update_price!)
 
         # Stats
-        ordergroups.each { |o| o.update_stats! }
+        ordergroups.each(&:update_stats!)
 
         # Notifications
         UserNotifier.delay.finished_order(self.id)

app/models/order_article.rb

@@ -137,7 +137,6 @@ class OrderArticle < ActiveRecord::Base
   def update_ordergroup_prices
     group_order_articles.each { |goa| goa.group_order.update_price! }
   end
-  handle_asynchronously :update_ordergroup_prices
 
 end