enable actions for multi (group) orders and ordergroup invoices

app/views/finance/balancing/_orders.html.haml

@@ -1,27 +1,24 @@
-- unless @orders.empty? && @multi_orders.empty?
+- unless @results.empty?
   - if Order.finished.count > 20
     = items_per_page
-  = pagination_links_remote @orders
-  -# following posed a real problem, multiple submit buttons are within the same form, so only one of them will be submitted
-  -# convert to javascript
-  = form_with url: multi_orders_path, method: :post, local: true do |form|
-    %table.table.table-striped
-      %thead
-        %tr
-          %th=I18n.t('activerecord.attributes.group_order_invoice.links.combine')
-          %th= t('.name')
-          %th= t('.end')
-          %th= t('.state')
-          %th= heading_helper Order, :updated_by
-          %th= heading_helper GroupOrderInvoice,  :name
-          %th
-          %th
-      %tbody
-        - @multi_orders.each do |multi_order|
-          = render partial: 'multi_order_row', locals: { multi_order: multi_order }
-        - @orders.each do |order|
-          = render partial: 'order_row', locals: { order: order }
-    = form.submit "Zusammenführen", class: 'btn btn-primary'
+  %table.table.table-striped
+    %thead
+      %tr
+        %th=I18n.t('activerecord.attributes.group_order_invoice.links.combine')
+        %th= t('.name')
+        %th= t('.end')
+        %th= t('.state')
+        %th= heading_helper Order, :updated_by
+        %th= heading_helper GroupOrderInvoice,  :name
+        %th
+        %th
+    %tbody
+      - @results.each do |result|
+        - if result.class == Order
+          = render partial: 'order_row', locals: { order: result }
+        - else
+          = render partial: 'multi_order_row', locals: { multi_order: result }
+  = button_tag 'Zusammenführen', class: 'btn btn-primary merge-orders-btn', type: 'button', data: { url: multi_orders_path }
 
 - else
   %i= t('.no_closed_orders')