Statistics::saveFilterToUserOption

protected function saveFilterToUserOption()
{
	if (!$this->userId)
	{
		return;
	}

	$filter = array();
	$list = $this->filter->getNames();
	foreach ($list as $name)
	{
		$value = $this->filter->get($name);
		if (!$value)
		{
			continue;
		}

		$filter[$name] = $value;
	}

	CUserOptions::setOption('sender', self::USER_OPTION_FILTER_NAME, $filter, false, $this->userId);
}