Question

im using hook form alter in drupal.

If the fields left empty I want it to get the last value submitted for the field and increase it by .01

Ive tried

function uc_pa_form_submit($form, &$form_state) {
  global $user;
$maxbid = db_result(db_query('SELECT MAX(amount) FROM {uc_auction_bids} WHERE nid = %d', $node->nid));
  $input01 = (($maxbid) ? $maxbid : 0) + .01;

drupal_write_record('table', $input01);

but it isnt updating with anything, I know $input01 works as I tried it in a different function.

if i change drupal_write_record(‘table’, $input01); to the value submitted it works.

Answer 1

drupal_write_record() expects the second argument to be an object, at the moment you’re passing a number. Also, if you’re trying to update a record you’ll need to provide the table’s primary keys as the third argument. Something like this:

$sql = 'SELECT * FROM FROM {uc_auction_bids} WHERE nid = %d ORDER BY amount DESC LIMIT 1';
$obj = db_fetch_object(db_query($sql));
$obj->amount = (($obj->amount) ? $obj->amount: 0) + .01;

drupal_write_record('uc_auction_bids', $obj, array('bid'));