نمونه کد computed field در دروپال

$originvalue=array_pop(field_get_items($entity_type, $entity, 'field_price'));

if(gettype($originvalue)=="array")

{

 $originvalue=intval(reset($originvalue));

 }

$discount=array_pop(field_get_items($entity_type, $entity, 'field_takhfif'));

if(gettype($discount)=="array")

{

 $discount=intval(reset($discount));

}

if ($discount<=0) {

    $discount=0;

}

$entity_field[0]['value'] =$originvalue-intval(($originvalue)*($discount/100));