Shipping module only for in stock items

[tlelliott77]

Can anyone help me wih this?

 

I want a shipping module that will only be available in checkout_shipping.php if all items in the cart have quantity of more than 1 in stock. The reason for this is that it will be a next day shipping option which will only be available for in-stock items.

 

For me it will be best to use a modified table rate module. I know I need to put the clause inside the function quote($method = '') { } tags in the same way that the zones module gives this error:

 

if ($error == true) $this->quotes['error'] = MODULE_SHIPPING_ZONES_INVALID_ZONE;

 

I just don't know how to query the items in the cart to make sure they all have products_quantity greater than 1. If anyone can help I'd appreciate it.

 

Tim

[tlelliott77]

Well I've done some messing around and got something to work. In the shipping module I've added the following lines at the end of the quotes function:

      $out_stock = $cart->all_in_stock();
     if ($out_stock > 0) $this->quotes['error'] = MODULE_SHIPPING_NEXTDAY_NO_STOCK;

 

and added this function into classes/shopping_cart.php

    function all_in_stock() { //Check if all cart contents are in stock
     $all_in_stock = 0;
     if (is_array($this->contents)) {
       reset($this->contents);
       while (list($products_id, ) = each($this->contents)) {
         $stock_quantity_query = tep_db_query("select products_id, products_quantity from " . TABLE_PRODUCTS . " where products_id = '" . (int)$products_id . "'");
         $stock_quantity = tep_db_fetch_array($stock_quantity_query);
         if($this->get_quantity($products_id) > $stock_quantity['products_quantity']) {
     $all_in_stock += 1;
   }
       }
     }
     return $all_in_stock;
   }

 

This works OK but it doesn't work as a drop-in shipping module as you need to change a core OSC file. Does anyone know how transfer the function into the shipping module and change all the $this->contents references to still pick up cart contents?

 

Again, any help is appreciated.