/**
 * merge hook for 'merge' mode households
 */
function householdmerge_civicrm_merge($type, &$data, $mainId = NULL, $otherId = NULL, $tables = NULL)
{
    if ('merge' == CRM_Householdmerge_Logic_Configuration::getHouseholdMode()) {
        // if in 'merge' mode, pass this hook to the househould merge controller
        $hhmerge_controller = new CRM_Householdmerge_MergeController();
        $hhmerge_controller->resolveConflicts($type, $data, $mainId, $otherId);
    }
}