+
+ /*
+ * Returns the quantity allowed to be dispatched for a particular item
+ * and a "reason" (css classes).
+ * This quantity would be the default value on the delivery note.
+ * The usual use case for this is when a item is in stock,
+ * but has been reserved by someone else.
+ * This allows extensions to implements its own priority algorithm.
+ * This function is by detail_id and not item in case the item is present
+ * more than one in the cart.
+ * If 'skip' is returned, the line will be skipped and not displayed
+ */
+function hook_get_dispatchable_quantity($line_item, $location, $date, $qoh) {
+ $result = hook_invoke_first('get_dispatchable_quantity', $line_item, array($location, $date, $qoh));
+ return $result !== null ? $result : hooks::default_get_dispatchable_quantity($line_item, $location, $date, $qoh);
+}