prevent NULL contents before field change (old servers can have this wrongly defined). MDL-14859

2008-05-15 17:02:05 +00:00
parent 2ecc706b25
commit a326872b88
1 changed files with 5 additions and 0 deletions
@@ -2970,6 +2970,11 @@ function xmldb_main_upgrade($oldversion=0) {
    if ($result && $oldversion < 2007101512) {
        notify('Increasing size of user idnumber field, this may take a while...', 'notifysuccess');

+    /// Under MySQL and Postgres... detect old NULL contents and change them by correct empty string. MDL-14859
+        if ($CFG->dbfamily == 'mysql' || $CFG->dbfamily == 'postgres') {
+            execute_sql("UPDATE {$CFG->prefix}user SET idnumber = '' WHERE idnumber IS NULL", true);
+        }
+
    /// Define index idnumber (not unique) to be dropped form user
        $table = new XMLDBTable('user');
        $index = new XMLDBIndex('idnumber');