/**
* shopp_order_exists - determine if an order exists with the specified id, or transaction id.
*
* @api
* @since 1.2
*
* @param int $id the order id, or the transaction id
* @param string $by (optional default:id) lookup by 'id', or 'trans'
* @return Purchase|bool Purchase object returned if the order exists, else returns false
**/
function shopp_order_exists($id = false, $by = 'id')
{
$Purchase = new ShoppPurchase();
if ($by == 'trans') {
$Purchase->load($id, 'txnid');
} else {
$Purchase->load($id);
}
if (!$Purchase->id) {
return false;
}
return $Purchase;
}
