Fix order.created_by

app/controllers/orders_controller.rb

@@ -60,6 +60,7 @@ class OrdersController < ApplicationController
   # order_articles will be saved in Order.article_ids=()
   def create
     @order = Order.new(params[:order])
+    @order.created_by = current_user
     if @order.save
       flash[:notice] = "Die Bestellung wurde erstellt."
       redirect_to @order

app/models/order.rb

@@ -19,9 +19,6 @@ class Order < ActiveRecord::Base
   validate :starts_before_ends, :include_articles
 
   # Callbacks
-  before_create do |order|
-    order.created_by = User.current_user
-  end
   after_update :update_price_of_group_orders
   after_save :save_order_articles