Question

I am writing an add on. And Ihave a problem getting the parameters from the url.

I use

$TWiki::Plugins::SESSION = new TWiki();

early in the script. And things like template and page retrieval work fine.

If I use

$query = new CGI();

the parameters are retrieved properly and the addon runs successfully.

But I expected to be able to use

$query = TWiki::Func::getCgiQuery();

. However, that construct does not return anything in the $query.

I am missing something obvious, but I don't see it. An earlier question (DocumentationHowToWriteAddOnInTWiki4) is related and mostly resolved. Please help.

Environment

-- BramVanOosterhout - 06 Nov 2006

Answer

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If your add on is running in a CGI environment then you need to explicitly pass the CGI query when creating the TWiki object. Otherwise TWiki.pm will create an empty query for you.

Try something like:

$TWiki::Plugins::SESSION = new TWiki($ENV{REMOTE_USER},CGI->new());
...
$query = TWiki::Func::getCgiQuery();

-- HaraldJoerg - 06 Nov 2006

the other option is to avoid writing yet another cgi script that creates another security attack point, and instead make a RestHandler. This can then be called from the rest cgi script.

-- SvenDowideit - 07 Nov 2006

Haralds suggestion worked for me.

Sven: I am too much of a novice to understand what you mean. I had a look at the doco at: TWiki.TWikiScripts#rest.

Is there more documentation about this?

-- BramVanOosterhout - 08 Nov 2006

Unfortunately not at this time. We need a SupplementalDocument on how to use the REST interface in TWiki.

-- PeterThoeny - 08 Nov 2006

Bram, the most detailed docco for rest is actuall in the EmptyPlugin stub - you need 2 things

1. a perl function defined
2. to call registerRestHandler from your initPlugin.

-- SvenDowideit - 08 Nov 2006

Peter and Sven,

Thanks for the pointers. I think I see enough to give the rest handler a shot. And it looks as if it will be a lot neater.

-- BramVanOosterhout - 09 Nov 2006