function upgrade_210()
{
    global $conf;
    $default = array('Blacklist' => "0", 'Version' => "2.1.1");
    $q = '
INSERT INTO ' . CONFIG_TABLE . ' (param,value,comment)
VALUES ("HistoryIPConfig","' . pwg_db_real_escape_string(serialize($default)) . '","History IP Excluder options");
';
    pwg_query($q);
    upgrade_211();
}
function plugin_activate($id, $version, &$errors)
{
    global $conf;
    include_once HIPE_PATH . 'include/dbupgrade.inc.php';
    /* Check for upgrade from 2.0.0 to 2.0.1 */
    /* *************************************** */
    $query = '
SELECT param
  FROM ' . CONFIG_TABLE . '
WHERE param = "nbc_HistoryIPExcluder"
;';
    $count = pwg_db_num_rows(pwg_query($query));
    if ($count == 1) {
        /* upgrade from version 2.0.0 to 2.0.1  */
        /* ************************************ */
        upgrade_200();
    }
    $query = '
SELECT param
  FROM ' . CONFIG_TABLE . '
WHERE param = "HistoryIPConfig"
;';
    $count = pwg_db_num_rows(pwg_query($query));
    if ($count == 0) {
        /* upgrade from version 2.1.0 to 2.1.1  */
        /* ************************************ */
        upgrade_210();
    }
    /* upgrade from version 2.1.1 to 2.2.0 */
    /* *********************************** */
    $HIPE_Config = unserialize($conf['HistoryIPConfig']);
    if ($HIPE_Config['Version'] == '2.1.1') {
        upgrade_211();
    }
    /* Global version number upgrade */
    /* ***************************** */
    global_version_update();
}