Item1591: "LINKTOOLTIPINFO = on" causes apache error message about uninitialized value in Render.pm
Current State: Closed
Released In: 1.1.0
Target Release: minor
Applies To: Engine
Set LINKTOOLTIPINFO = on
will generate lots of error messages in apache2's error.log like this:
[Fri May 08 13:23:19 2009] [error] [client XXX.XXX.XXX.XXX] [Fri May 8 13:23:19 2009] view: ...
Use of uninitialized value in substitution iterator at /var/lib/foswiki/lib/Foswiki/Render.pm line 563., ...
I had the setting enabled. For my user account, every topic rendering resulted in this error message. All other users generated the message only, if they had a look to my topic. This absolutely makes sense, but I just wanted to note this...
Installed plugins don't play any role here, as I tracked down.
Debian stable (Lenny):
- 24 May 2009
does the functionality otherwise work? if so, please try this patch:
- $text =~ s/\$username/$users->getLoginName($user)/ge; # 'jsmith'
+ $text =~ s/\$username/$users->getLoginName($user)/ge if $users->getLoginName($user); # 'jsmith'
this would mean that
is returning undef (line 564 calls $users->getWikiName($user), which i assume you're not getting an error on as well)
getLoginName() documentation says
Get the login name of a user. Returns undef if the user is not known.=
how can this information not be known? when the user isn't logged in, i imagine. any other way?
- 02 Jun 2009
Removed Sven from waiting for. When a bug is waiting for - developers tend to ignore it until the reporter has provided more info.
any chance you can provide some feedback?
- 16 Jun 2009
Will's patch from above seems to be working. The error messages are gone now. But I also don't get how this can happen, since it didn't make any difference whether the user for whom this setting was set (me) was logged in or not (see above...).
- 17 Jun 2009
It's nothing to do with the logged-in user. The LINKTOOLTIPINFO expands the author of the topic, and if that author is not found in the user DB, the error will result. I added a catch-all.
- 10 Aug 2009