Question

So i'm well versed with creating new meta data in my plugins and have had good success doing this. However i now was hoping to create some new metadata similar to the way the META:FIELD data works.

With the META:FIELD type you can have multiple instances of it and return all of them. eg.

%META:FIELD{name="one" value="1"}%
%META:FIELD{name="two" value="2"}%
%META:FIELD{name="three" value="3"}%


Unfortunately it seems that this type of behaviour is only possible with the FIELD and FILEATTACHMENT meta data type as whenever i try it with any other name such as META:BASELINE (my desired one) it doesn't work. My $meta->find() call only returns an array of length 1. I tried this with some of the other native twiki meta types as well just for curiosities sake to no avail as well.

I did some digging in meta.pm and such without much luck. I suspect it has less to do with the find() function and more to do with the readTopic() that extracts the meta data.

Anyways I was hoping someone could either a) give me a quick answer like "this is totally unsupported" or b) "you're smoking crack, all you have to do is this ... " or c) a push in the right direction.

Thanks,

Brent.

Environment

-- BrentTokarchuk - 10 Apr 2006

Answer

If you answer a question - or someone answered one of your questions - please remember to edit the page and set the status to answered. The status selector is below the edit box.

You can have multiple values with any meta-data type. I know this works on TWiki-4 and I think it should work on Cairo as well. However for most of the types, the core code will assume single-valued (e.g. topic parent).

-- CrawfordCurrie - 11 Apr 2006

TWiki::Meta of Cairo has multiple keys hardcoded for META:FIELD and META:FILEATTACHMENT only, so you'd have to upgrade to TWiki 4.

-- PeterThoeny - 11 Apr 2006

Ok thanks peter. That's the answer i needed to know.

-- BrentTokarchuk - 11 Apr 2006