public function set_new_hash($new_hash) {
	$mysql = bootstrap::get_library('mysql');
	
	$sql   = "UPDATE `login_passwords` SET `hash` = '%s' WHERE `id` = %d;";
	$binds = [$new_hash, $this->data['id']];
	$mysql::query($sql, $binds);
	
	$this->data['hash'] = $new_hash;
}