die();
} // END - if
-// Sanity-check: Do we have ref level 0?
-$result = SQL_QUERY('SELECT `id` FROM `{?_MYSQL_PREFIX?}_refsystem` WHERE `level`=0 OR `level` IS NULL', __FILE__, __LINE__);
+// Sanity-check: Do we have ref level 0? If so, this must be fixed to NULL and `level` must be increased by one
+$result = SQL_QUERY('SELECT `id` FROM `{?_MYSQL_PREFIX?}_refsystem` WHERE `level`=0', __FILE__, __LINE__);
if (!SQL_HASZERONUMS($result)) {
// Remove index temporaly
SQL_ALTER_TABLE('ALTER TABLE `{?_MYSQL_PREFIX?}_refsystem` DROP INDEX `userid_level`', __FILE__, __LINE__);
- // Upgrade refsystem, ref-level 0 is silly here
+ // Upgrade refsystem
SQL_QUERY('UPDATE `{?_MYSQL_PREFIX?}_refsystem` SET `level`=`level`+1', __FILE__, __LINE__);
// Add it again
- SQL_ALTER_TABLE('ALTER TABLE `{?_MYSQL_PREFIX?}_refsystem` ADD UNIQUE `userid_level` ( `userid`, `level` )', __FILE__, __LINE__);
+ SQL_ALTER_TABLE('ALTER TABLE `{?_MYSQL_PREFIX?}_refsystem` ADD UNIQUE `userid_level` (`userid`,`level`)', __FILE__, __LINE__);
// Rebuild cache
rebuildCache('refsystem', 'refsystem');