Adding custom field to Ubercart Invoice

My client has an ubercart based shop which works fine. Due to some internal stuff he needs to manually add a field to each invoice. I wanted to know if or rather how i can add a custom field to orders that gets displayed on all the invoices.

I have not personally had to make this change, so I'm not speaking from experience, but looking at the documentation I would try the following: (you could cut corners and avoid some work by modifying the existing modules, but this is the cleanest way I can think of)

1. create a module that stores your field and the the order number.
2. using from_alter modify the invoice editing screen to give your users a way to edit the field.
3. use the invoice template to pull in your field, based on the order number. [invoice "system" documentation][1].

It's not a simple change, but using this pattern you'll get the modification you are looking for without having to worry about updates not working.


[1]:

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It's an old question but this may help others; you can use the following code.

First checkout the `customer.itpl.php` or `customer.itpl.php` files located under `ubercart/uc_order/templates`.

Then you can edit the foreach loop that echoes all the products and add your own fields this way:

<?php
foreach ($order->products as $product) {
$nid = ($product->nid);
$noderef = node_load($nid);
echo $product->title .' : '.$noderef->your_own_field[0]['value'];
echo "<br />";
?>

My Ubercart installation has the product fields can be edited from `http://www.mysite.com/admin/content/node-type/product/fields`.

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