Add order_product_id field

Oh, I just wrote a patch for this too, but I guess there's already an issue out.

In that case...the infamous...+1 subscribe!

Works for me.

Committed to CVS, thanks for the patch!

Opening up again,

Could we add, for completeness sake:

    'argument' => array(
      'handler' => 'views_handler_argument_numeric',
      'name field' => 'title',
      'numeric' => TRUE,
      'validate type' => 'order_product_id',
    ),

So the order_product_id can be an argument (using a views_pdf to make a label for a product_order and found I cannot get the argument).

Thx
Mark

Committed #6.