Direct shipping for out of stock orders

[BGundlach]

Is it possible to ship by whether products are in stock or not? I have a client that wants an order of in stock items to ship on a table, then out of stock or mixed orders to ship direct from the manufacturer, using the ups xml. I'm not sure if there is already something out there that does this or if I will have to write it myself, but any pointers would be appreciated.

[BGundlach]

My guess is that I would create a loop on checkout that would go through all the products, if one is out of stock, I set the shipping to UPS XML. Otherwise ship using table method.

[BGundlach]

and, problem solved. In the /includes/modules/pages/checkout_shipping/header_php.php if you've already installed Stock by Attributes there is already an in-stock loop. just a copy paste without the condition will do it, Search for:

// Stock Check
 if ( (STOCK_CHECK == 'true') && (STOCK_ALLOW_CHECKOUT != 'true') ) {
    $products = $_SESSION['cart']->get_products();
    for ($i=0, $n=sizeof($products); $i<$n; $i++) {

        // START "Stock by Attributes"
        // Added to allow individual stock of different attributes
        unset($attributes);
        if(is_array($products[$i]['attributes'])){
            $attributes = $products[$i]['attributes'];
        } 
        else{
              $attributes = null;
        }
    
        if(!empty($attributes)){
            if (zen_check_stock($products[$i]['id'], $products[$i]['quantity'], $attributes)) {
                zen_redirect(zen_href_link(FILENAME_SHOPPING_CART));
                break;
            }
        }
        else{
              if (zen_check_stock($products[$i]['id'], $products[$i]['quantity'])) {
                  zen_redirect(zen_href_link(FILENAME_SHOPPING_CART));
                  break;
              }
        }
     }   
    // END "Stock by Attributes"

Then add BEFORE it:

//In Stock Shipping Check
$in_stock_flag = true;
    $products = $_SESSION['cart']->get_products();
    for ($i=0, $n=sizeof($products); $i<$n; $i++) {

    // START "Stock by Attributes"
    // Added to allow individual stock of different attributes
      unset($attributes);
      if(is_array($products[$i]['attributes'])){
      $attributes = $products[$i]['attributes'];
      } 
      else{
          $attributes = null;
      }
  
    if(!empty($attributes)){
        if (zen_check_stock($products[$i]['id'], $products[$i]['quantity'], $attributes)) {
          $in_stock_flag = false;
          break;
        }
      }
      else{
          if (zen_check_stock($products[$i]['id'], $products[$i]['quantity'])) {
            $in_stock_flag = false;
            break;
          }
      }
  }   
// END in stock shipping

Then search for where the shipping modules are loaded:

// load all enabled shipping modules
  require(DIR_WS_CLASSES . 'shipping.php');
  $shipping_modules = new shipping;

and insert your specific logic immediately AFTER:

if (!in_stock_flag){
  $shipping_modules->modules = array("upsxml.php");
}
else {
  if ($_SESSION['customer_whole'] && $_SESSION['customer_whole'] != '0' ) {
    $shipping_modules->modules = array("wholesaletable.php");
  } else {
    $shipping_modules->modules = array("table.php");
  }
}