Unable to update web_database via API

I have set new database quota limit in template for users. Now I need old quotas change to new values. For that I use 'sites_database_update' API call. Just like this:

PHP:

try {
   if($session_id = $client->login($username, $password)) {
       echo 'Logged successfull. Session ID:'.$session_id.'<br />';
   }

   //* Parameters
   $database_id = 1;
   $client_id = 1;


   //* Get the database record
   $database_record = $client->sites_database_get($session_id, $database_id);

   //* Change the status to inactive
   $database_record['database_quota'] = 1024;

   $affected_rows = $client->sites_database_update($session_id, $client_id, $database_id, $database_record);

   echo "Number of records that have been changed in the database: ".$affected_rows."<br>";

   if($client->logout($session_id)) {
       echo 'Logged out.<br />';
   }


} catch (SoapFault $e) {
   echo $client->__getLastResponse();
   die('SOAP Error: '.$e->getMessage());
}

The problem is, that API call gets OK, but 0 rows updated... No errors, nothing. Any clues what can be wrong?

 

Ha! Actually figured it out: I was passing array in array... Fixed the problem.