I am trying to update some information on my odoo product with PHP and xmlrpc.

This is my code for update product name.

$models->execute_kw($db, $uid, $password, 'product.product', 'write',

array(array(5), array('name'=>"Newer product 3",'type'=>"consu")));

Now I want to change a "Quantity On Hand" field so I trying this code :

$models->execute_kw($db, $uid, $password, 'product.product', 'write',

array(array(5), array('name'=>"Newer product 3",'type'=>"consu",'qty_available'=>'7')));

but it doesn't work, anyone got any ideas how to fix it?

Thank you.