Agreement::isAcceptedByUser

static function isAcceptedByUser($userId)
{
	$agreement = AgreementTable::getRow(array(
		'select' => array('ID'),
		'filter' => array('=USER_ID' => $userId),
		'limit' => 1,
		'cache' => array('ttl' => 3600)
	));

	return !empty($agreement);
}