add vat exempt option in payment_tab ~ refs #automatic_go_invoices

add option vor vat_exempt inoices ~ refs automatic go invoices

fix order.ordergroup nil pointer error ~ automatic go invoices

fix nil pointer~ refs automatic go invoice

rubocop styling ~ refs automatic go invoice

app/views/admin/configs/_tab_payment.html.haml

@@ -13,9 +13,11 @@
 = config_input form, :charge_members_manually, as: :boolean
 = config_input form, :use_iban, as: :boolean
 = config_input form, :use_self_service, as: :boolean
+%h4= t '.group_order_invoices'
 = form.fields_for :group_order_invoices do |field|
-  = config_input field, :use, as: :boolean
-  = config_input field, :payment_method, as: :string, input_html: {class: 'input-mini'}
+  = config_input field, :use_automatic_invoices, as: :boolean
+  = config_input field, :vat_exempt, as: :boolean
+  = config_input field, :payment_method, as: :string, input_html: {class: 'input-medium'}
 
 %h4= t '.schedule_title'
 = form.simple_fields_for :order_schedule do |fields|

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

@@ -21,7 +21,7 @@
           %td= show_user(order.updated_by)
           %td{id: "generate-invoice#{order.id}"}
             - if order.closed?
-              -if FoodsoftConfig[:contact][:tax_number]
+              -if FoodsoftConfig[:contact][:tax_number] && order.ordergroups.present?
                 = render :partial => 'group_order_invoices/links', locals:{order: order}
               -else
                 = I18n.t('activerecord.attributes.group_order_invoice.tax_number_not_set')

app/views/group_order_invoices/_links.html.haml

@@ -1,11 +1,12 @@
-.row
-  - order.group_orders.includes([:group_order_invoice, :ordergroup]).each do |go|
-    .row
+- order.group_orders.includes([:group_order_invoice, :ordergroup]).each do |go|
+  .row
+    .column.small-3
       = label_tag go.ordergroup.name
-      - if go.group_order_invoice
+    - if go.group_order_invoice
+      .column.small-3
         = 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'
+      .column.small-3
         = 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
+    - 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