>>Hello, from a computed field I wanna to a typical bill-line calculation doing a multiplication  
>> price = quantity * fk_product_price 
>> How can I do that? I tried wihout luck. 
>> $node_field[0]['value'] = $node->field_quantitat[0]['value'] * $node->field_fk_producte[0]['value']......; 
>>  Thank's!
 
Exec "print_r($node)". Are there present field_quantitat and field_fk_producte ? 
 
Yes booth are present but I think I need the field_preu (price) stored on the producte (product) node type identified by the field_fk_producte.  
Is it possible to do that? 
 
What is fk_* ? 
 
I use the fk_ prefix on all node_related CCK fields to avoid confussion when I'm using views or adding new node_Relations to other content types. It comes from the Foreign Key on relational databases ( I know it isn' the way that Drupal Stores it but it's usefull to me). 

Thank's for all!
Pol Maresma 

-- 
Michel 'ZioBudda' Morelli                       michel@ziobudda.net
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