Add bulk invoices printing

app/assets/javascripts/admin/orders/controllers/orders_controller.js.coffee

@@ -1,4 +1,4 @@
-angular.module("admin.orders").controller "ordersCtrl", ($scope, RequestMonitor, Orders, SortOptions) ->
+angular.module("admin.orders").controller "ordersCtrl", ($scope, RequestMonitor, Orders, SortOptions, $http, $window) ->
   $scope.RequestMonitor = RequestMonitor
   $scope.pagination = Orders.pagination
   $scope.orders = Orders.all
@@ -53,3 +53,11 @@ angular.module("admin.orders").controller "ordersCtrl", ($scope, RequestMonitor,
   $scope.changePage = (newPage) ->
     $scope.page = newPage
     $scope.fetchResults(newPage)
+
+  $scope.bulkInvoice = ->
+    params = ''
+    angular.forEach $scope.selected, (selected, order_id) ->
+      params += 'order_ids[]='+order_id+'&' if selected
+
+    $window.open('/admin/orders/bulk_invoice?'+params)
+    true

app/assets/stylesheets/admin/orders.css.scss

@@ -103,3 +103,10 @@ table.index td.actions {
     font-size: 1.2em;
   }
 }
+
+.index-controls {
+
+  button {
+    float: right;
+  }
+}

app/controllers/spree/admin/orders_controller_decorator.rb

@@ -1,4 +1,5 @@
 require 'open_food_network/spree_api_key_loader'
+require 'combine_pdf'
 
 Spree::Admin::OrdersController.class_eval do
   include OpenFoodNetwork::SpreeApiKeyLoader
@@ -37,13 +38,33 @@ Spree::Admin::OrdersController.class_eval do
   end
 
   def invoice
-    pdf = render_to_string pdf: "invoice-#{@order.number}.pdf", template: invoice_template, formats: [:html], encoding: "UTF-8"
+    pdf = render_to_string pdf: "invoice-#{@order.number}.pdf",
+                           template: invoice_template,
+                           formats: [:html], encoding: "UTF-8"
+
     Spree::OrderMailer.invoice_email(@order.id, pdf).deliver
     flash[:success] = t('admin.orders.invoice_email_sent')
 
     respond_with(@order) { |format| format.html { redirect_to edit_admin_order_path(@order) } }
   end
 
+  def bulk_invoice
+    orders = params[:order_ids]
+
+    combined_pdf = CombinePDF.new
+
+    orders.each do |order_id|
+      @order = Spree::Order.find(order_id)
+      pdf_data = render_to_string pdf: "invoice-#{@order.number}.pdf", template: invoice_template,
+                                  formats: [:html], encoding: "UTF-8"
+
+      combined_pdf << CombinePDF.parse(pdf_data)
+    end
+
+    send_data combined_pdf.to_pdf, filename: "invoices.pdf",
+                                   type: "application/pdf", disposition: :inline
+  end
+
   def print
     render pdf: "invoice-#{@order.number}", template: invoice_template, encoding: "UTF-8"
   end

app/models/spree/ability_decorator.rb

@@ -210,7 +210,9 @@ class AbilityDecorator
       # during the order creation process from the admin backend
       order.distributor.nil? || user.enterprises.include?(order.distributor) || order.order_cycle.andand.coordinated_by?(user)
     end
-    can [:admin, :bulk_management, :managed], Spree::Order if user.admin? || user.enterprises.any?(&:is_distributor)
+    can [:admin, :bulk_management, :managed, :bulk_invoice], Spree::Order do
+      user.admin? || user.enterprises.any?(&:is_distributor)
+    end
     can [:admin, :visible], Enterprise
     can [:admin, :index, :create, :update, :destroy], :line_item
     can [:admin, :index, :create], Spree::LineItem

app/views/spree/admin/orders/index.html.haml

@@ -16,9 +16,12 @@
 - content_for :table_filter do
   = render partial: 'filters'
 
-.row
+.row.index-controls{'ng-show' => '!RequestMonitor.loading && orders.length > 0'}
   = render partial: 'per_page_controls'
 
+  %button{'ng-click' => 'bulkInvoice()'}
+    = t('.print_invoices')
+
 %table#listing_orders.index.responsive{width: "100%", 'ng-init' => 'initialise()', 'ng-show' => "!RequestMonitor.loading && orders.length > 0" }
   %colgroup
     %col{style: "width: 10%"}

config/locales/en.yml

@@ -2696,6 +2696,7 @@ See the %{link} to find out more about %{sitename}'s features and to start using
           results_found: "%{number} Results found."
           viewing: "Viewing %{start} to %{end}."
           select_all: "Select All"
+          print_invoices: "Print Invoices"
         invoice:
           issued_on: Issued on
           tax_invoice: TAX INVOICE