add functionality in views and controllers for generation of group order invoices

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

@@ -9,6 +9,8 @@
         %th= t('.end')
         %th= t('.state')
         %th= heading_helper Order, :updated_by
+        %th= heading_helper GroupOrderInvoice,  :name
+        %th
         %th
     %tbody
       - @orders.each do |order|
@@ -17,6 +19,14 @@
           %td=h format_time(order.ends) unless order.ends.nil?
           %td= order.closed? ? t('.cleared', amount: number_to_currency(order.foodcoop_result)) : t('.ended')
           %td= show_user(order.updated_by)
+          %td{id: "generate-invoice#{order.id}"}
+            - if order.closed?
+              -if FoodsoftConfig[:contact][:tax_number]
+                = render :partial => 'group_order_invoices/links', locals:{order: order}
+              -else
+                = I18n.t('activerecord.attributes.group_order_invoice.tax_number_not_set')
+            - else
+              = t('orders.index.not_closed')
           %td
             - unless order.closed?
               - if current_user.role_orders?

app/views/group_order_invoices/_links.html.haml

@@ -0,0 +1,11 @@
+.row
+  - order.group_orders.includes([:group_order_invoice, :ordergroup]).each do |go|
+    .row
+      = label_tag go.ordergroup.name
+      - if go.group_order_invoice
+        = link_to I18n.t('activerecord.attributes.group_order_invoice.links.download'), group_order_invoice_path(go.group_order_invoice, :format => 'pdf'), class: 'btn btn-small'
+        = link_to  I18n.t('activerecord.attributes.group_order_invoice.links.delete'), go.group_order_invoice, method: :delete, class: 'btn btn-danger btn-small', remote: true
+      - else
+        = button_to  I18n.t('activerecord.attributes.group_order_invoice.links.generate'), group_order_invoices_path(:method => :post, group_order: go) ,class: 'btn btn-small', params: {id: order.id}, remote: true
+    %br
+

app/views/group_order_invoices/create.js.erb

@@ -0,0 +1 @@
+$("#generate-invoice<%= params[:id] %>").html("<%= escape_javascript(render partial: 'links', locals: {order: @order}) %>");

app/views/group_order_invoices/destroy.js.erb

@@ -0,0 +1 @@
+$("#generate-invoice<%= @order.id %>").html("<%= escape_javascript(render partial: 'links', locals: {order: @order}) %>");

app/views/group_order_invoices/show.pdf.prawn

@@ -0,0 +1 @@
+pdf.text "Hello World"