Question

Have tried various methods found on TWiki site for implementing list of child topics of a given topic. ALL return empty -- and yes, there are children of the topic. Have tried everything and still am stumped. For example:

%METASEARCH{type="parent" web="%WEB%" topic="%TOPIC%" title="Children: "}%

Same result for

%SEARCH{"\%META:TOPICPARENT\{name=\"%TOPIC%\"\}\%" type="regex" nosearch="on" header="Children: "}%

Children: %SEARCH{ "META:TOPICPARENT.*\"%TOPIC%\}" type="regex" nonoise="on" format="[[$topic]]" separator=", " }%

%METASEARCH{topic="%TOPIC%" type="parent"}%

etc. All give the same result. They return empty.

Please feel free to visit http://www.mondaylambson.com/wiki/bin/view.pl/Sandbox/TestSearchForChildren where I've set up a test page

Recurring warning in .../data/warn200702.txt is ... exec failed: Inappropriate ioctl for device at .../lib/TWiki/Sandbox.pm line 389. (This is the only warning in the log and it recurs regularly)

I have perfomed this same test in other webs on the wiki, so it's not just effecting the Sandbox

THANK YOU VERY MUCH

Environment

-- ClaytonCafiero - 03 Feb 2007

Answer

If you answer a question - or have a question you asked answered by someone - please remember to edit the page and set the status to answered. The status is in a drop-down list below the edit box.

Something peculiar is going on on your installation. At least HierarchicalNavigation should work, but it doesn't.

Do you experience other problems with search?

-- ArthurClemens - 03 Feb 2007

THANKS for checking so quickly.

Alas, it appears so: something peculiar is indeed going on. I cannot make heads or tails of the code in Sandbox.pm that's throwing the error -- I'm no Perl programmer, that's for sure -- so that's a dead end for me at least.

However, I installed TreePlugin to see if it works and that seems to work OK. It is now disabled.

Do you have any recommendations?

Could this be permissions-related perhaps?

THANKS AGAIN.

-C

-- ClaytonCafiero - 03 Feb 2007

I noticed I cannot access your bin/configure or bin/configure.pl page. I think you need to check that first.

-- ArthurClemens - 04 Feb 2007

I understood that this should be made inaccessible via the web after configuration is complete, so I took off all the execute bits -- that's why the server error. It is bin/configure.pl and It is now accessible, though still password protected. So far as I can tell, all is OK.

THANKS

-- ClaytonCafiero - 04 Feb 2007

I can't find anything wrong in your setup.

-- ArthurClemens - 05 Feb 2007

The obvious thing to check is that your grep is fully GNU-compatible.

Try switching on tracing in lib/TWiki/Sandbox.pm (it should be obvious how), run a search, and look at the apache error log. Copy the grep output there, and paste it onto the command line. What does it say?

-- CrawfordCurrie - 05 Feb 2007

Will do. Thanks.

-- ClaytonCafiero - 05 Feb 2007

Here's some info: grep errors often do not show the search term entered ???

[Mon Feb 05 14:41:49 2007] [error] [client MY.IP.ADDRESS.HERE] /bin/fgrep '-i' '-l' '-H' '--' 'something.Very/unLikelyTo+search-for;-)'

!!! Rest assured I did not enter 'something.Very/unLikelyTo+search-for;-)'

[Mon Feb 05 14:41:55 2007] [error] [client 71.234.56.71] /bin/egrep '-l' '-H' '--' '.*' '...claytoncafiero/web/public/wiki/data/Sandbox/CommentPluginExampleComments.txt' ... [list of files omitted] ... -> Content-type: text/plain

 ----- 

[Mon Feb 05 14:41:55 2007] [error] [client MY.IP.ADDRESS.HERE]
[Mon Feb 05 14:41:55 2007] [error] [client MY.IP.ADDRESS.HERE] TWiki detected an internal error - please check your TWiki logs and webserver logs for more information.
[Mon Feb 05 14:41:55 2007] [error] [client MY.IP.ADDRESS.HERE]
[Mon Feb 05 14:41:55 2007] [error] [client MY.IP.ADDRESS.HERE] exec failed: Inappropriate ioctl for device
[Mon Feb 05 14:41:55 2007] [debug] mod_headers.c(527): headers: ap_headers_output_filter()
[Mon Feb 05 14:41:55 2007] [debug] mod_deflate.c(468): [client MY.IP.ADDRESS.HERE] Zlib: Compressed 1385 to 578 : URL /wiki/bin/view.pl/Sandbox/WebRss
[Mon Feb 05 14:42:01 2007] [error] [client MY.IP.ADDRESS.HERE] /bin/fgrep '-i' '-l' '-H' '--' 'child' '...claytoncafiero/web/public/wiki/data/Sandbox/CommentPluginExampleComments.txt' ... [list of files omitted] ... -> Content-type: text/plain
[Mon Feb 05 14:41:49 2007] [error] [client MY.IP.ADDRESS.HERE] aytoncafiero/web/public/wiki/data/Sandbox/WebLeftBar.txt' '...claytoncafiero/web/public/wiki/data/Sandbox/WebNotify.txt' ...
[Mon Feb 05 14:41:49 2007] [error] [client MY.IP.ADDRESS.HERE] , referer: http://www.mondaylambson.com/wiki/bin/view.pl/Sandbox/TestSearchForChildren
[Mon Feb 05 14:41:49 2007] [error] [client MY.IP.ADDRESS.HERE] TWiki detected an internal error - please check your TWiki logs and webserver logs for more information., referer: http://www.mondaylambson.com/wiki/bin/view.pl/Sandbox/TestSearchForChildren
[Mon Feb 05 14:41:49 2007] [error] [client MY.IP.ADDRESS.HERE] , referer: http://www.mondaylambson.com/wiki/bin/view.pl/Sandbox/TestSearchForChildren
[Mon Feb 05 14:41:49 2007] [error] [client MY.IP.ADDRESS.HERE] exec failed: Inappropriate ioctl for device, referer: http://www.mondaylambson.com/wiki/bin/view.pl/Sandbox/TestSearchForChildren

This group of errors (immediately above) I get when loading the TestSearchForChildren topic

Doing as you said -- pasting grep output from logs to command line. Stand by for update.

THANKS

-- ClaytonCafiero - 05 Feb 2007

OK. For starters it looks like TWiki is looking for /bin/grep, /bin/fgrep, /bin/egrep. On my system they are at /usr/bin/grep, /usr/bin/fgrep, /usr/bin/egrep

-- ClaytonCafiero - 05 Feb 2007

Can I safely modify lib/TWiki.spec and lib/LocalSite.cfg to point to the correct location for grep, fgrep, egrep, etc.?

-- ClaytonCafiero - 05 Feb 2007

Well, I went ahead and modified lib/TWiki.spec and lib/LocalSite.cfg. And guess what? It works now! So does search! Thanks guys!

Should I have any concerns about having modified these files?

-- ClaytonCafiero - 05 Feb 2007

Glad it worked out. We had a similar support question recently on freebsd. For easier upgrade later on, please do not modify lib/TWiki.spec, only modify lib/LocalSite.cfg.

-- PeterThoeny - 05 Feb 2007

Thank you all.

-- ClaytonCafiero - 05 Feb 2007