Drupal Commerce Bulk Order Printing

You will need to download and enable Views Bulk Operations and Commerce Invoice Receipt for this solution. This also assumes you know how to create a basic module.

Configure commerce_orders view

Add the Bulk Operations Commerce Order field if it's not already there. In the fields configuration, you need to check "Pass ids as arguments to a page". The other two checkboxes are optional. Final thing to do is enter the url path. Apply and save view. You should see the following or something like it:

hook_menu

We need to use hook_menu to create the page specified above.

function commerce_bulk_printing_menu() {
 $items = array();
 $items['admin/commerce/orders/print/%'] = array(
  'title' => 'Bulk Printing',
  'description' => 'Outputs printable invoices for each order id passed.',
  'page callback' => '_commerce_bulk_printing_print',
  'page arguments' => array(4),
  'access callback' => TRUE,
  'weight' => 10,
 );
 return $items;
}

_commerce_bulk_printing_print($ids)

And now for the function that uses the order ids we passed and outputs printable invoices.

/**
 * outputs a printable view of invoices
 * most of the functionality in this module was taken from commerce_invoice_receipt_view_print
 */
function _commerce_bulk_printing_print($ids) {
 $orderids = explode(",", $ids);
 $styles[] = array(
  'type' => 'file',
  'media' => 'all',
  'data' => commerce_invoice_reciept_css_path(),
  'group' => CSS_DEFAULT,
  'every_page' => FALSE,
  'weight' => 0,
  'preprocess' => FALSE,
  'browsers' => array(),
 );
 $html = drupal_get_css($styles);
 foreach($orderids as $orderid) {
  $order = commerce_order_load($orderid);
  $build = entity_view('commerce_order', array($order->order_id => $order), 'invoice', NULL, TRUE);
  $invoice_info = _commerce_invoice_receipt_get_invoice_info($order, $build);
  $html .= theme('commerce_order_invoice_view', array('info' => $invoice_info, 'order' => $order));
 }
 print _emogrifier_process($html, NULL, NULL, NULL, NULL, NULL);
}

Override commerce-order-invoice-view.tpl.php

When printing multiple orders, they will show up on the same page unless we specify when the page ends. In commerce-order-invoice-view.tpl.php, add page-break-after:always class to the body tag.

That's it. You should now see a page like the image below when you try to print multiple orders