add specs

app/controllers/multi_orders_controller.rb

@@ -39,27 +39,18 @@ class MultiOrdersController < ApplicationController
       end
       return
     end
-
     begin
       @multi_order = MultiOrder.new
       @multi_order.orders = orders
       @multi_order.ends = orders.map(&:ends).max
       @multi_order.save!
-      #create multi group orders
-      all_group_orders = orders.flat_map(&:group_orders)
-
-      grouped_by_ordergroup = all_group_orders.group_by(&:ordergroup_id)
-
-      grouped_by_ordergroup.each do |ordergroup_id, group_orders|
-        multi_group_order = MultiGroupOrder.create!(
-          multi_order: @multi_order, group_orders: group_orders
-        )
-        # Now, associate each group_order with the new multi_group_order
-        group_orders.each do |group_order|
-          group_order.update!(multi_group_order: multi_group_order)
-        end
+      suppliers = orders.map(&:supplier).map(&:name).join(', ')
+      msg = "Multi Bestellung für #{suppliers} erstellt"
+      respond_to do |format|
+        flash[:notice] = msg
+        format.js
+        format.html { redirect_to finance_order_index_path }
       end
-      redirect_to finance_order_index_path
     rescue ActiveRecord::RecordInvalid => e
       flash[:alert] = t('errors.general_msg', msg: e.message)
       respond_to do |format|
@@ -71,9 +62,13 @@ class MultiOrdersController < ApplicationController
 
   def destroy
     @multi_order = MultiOrder.find(params[:id])
-    @multi_order.destroy
-    respond_to do |format|
-      format.html { redirect_to finance_order_index_path }
+    if @multi_order.ordergroup_invoices.any?
+      flash[:alert]= "Lösche erst die Rechnungen"
+      redirect_to finance_order_index_path
+    else
+      @multi_order.destroy
+      redirect_to finance_order_index_path
+
     end
   end