function preAction()
 {
     xoonips_allow_post_method();
     if (!$GLOBALS['xoopsGTicket']->check(true, 'xoonips_transfer_admin_list_item', false)) {
         die('ticket error');
     }
     global $xoopsUser;
     $from_uid = $this->_formdata->getValue('post', 'from_uid', 'i', true);
     $to_uid = $this->_formdata->getValue('post', 'to_uid', 'i', true);
     $to_index_id = $this->_formdata->getValue('post', 'to_index_id', 'i', true);
     $transfer_item_ids = array_merge($this->get_item_ids_to_transfer(), $this->get_child_item_ids_to_transfer());
     if (!xoonips_transfer_is_transferrable($from_uid, $to_uid, $transfer_item_ids)) {
         redirect_header(XOOPS_URL . '/modules/xoonips/admin/maintenance.php?' . 'page=item&action=transfer_admin_initialize', 3, _AM_XOONIPS_MAINTENANCE_TRANSFER_ITEM_ERROR);
     }
     if (xoonips_transfer_is_private_item_number_exceeds_if_transfer($to_uid, $transfer_item_ids)) {
         redirect_header(XOOPS_URL . '/modules/xoonips/admin/maintenance.php?' . 'page=item&action=transfer_admin_initialize', 3, _AM_XOONIPS_MAINTENANCE_TRANSFER_ITEM_ERROR_ITEM_NUMBER_EXCEEDS);
     }
     if (xoonips_transfer_is_private_item_storage_exceeds_if_transfer($to_uid, $transfer_item_ids)) {
         redirect_header(XOOPS_URL . '/modules/xoonips/admin/maintenance.php?' . 'page=item&action=transfer_admin_initialize', 3, _AM_XOONIPS_MAINTENANCE_TRANSFER_ITEM_ERROR_ITEM_STORAGE_EXCEEDS);
     }
     if (!$this->is_equals_group_ids(xoonips_transfer_get_group_ids_of_items($transfer_item_ids), $this->_formdata->getValueArray('post', 'group_ids_to_subscribe', 'i', false))) {
         redirect_header(XOOPS_URL . '/modules/xoonips/admin/maintenance.php' . '?page=item', 3, _AM_XOONIPS_MAINTENANCE_TRANSFER_ITEM_ERROR_BAD_SUBSCRIBE_GROUP);
     }
     $this->_params[] = $transfer_item_ids;
     $this->_params[] = $from_uid;
     $this->_params[] = $to_uid;
     $this->_params[] = $to_index_id;
     $this->_params[] = xoonips_transfer_get_group_ids_of_items($transfer_item_ids);
 }
 /**
  * return true if number or storage size of item exceed
  */
 function get_limit_check_result($to_uid, $transfer_item_ids)
 {
     return xoonips_transfer_is_private_item_number_exceeds_if_transfer($to_uid, $transfer_item_ids) || xoonips_transfer_is_private_item_storage_exceeds_if_transfer($to_uid, $transfer_item_ids);
 }