Hi Yury,
This sounds like a very different example - here the original, "source"
field is just a hidden field that gets its value from the query string. In
that case, I would think the ideal solution would be to use the
UrlGetParameters extension, to directly use the query string value:
https://www.mediawiki.org/wiki/Extension:UrlGetParameters
I'm not entirely sure that this would work, because I don't remember which
parts of the form syntax let you embed a parser function within them - but
if it doesn't work, then getting it to work would seem like the simpler,
and better, solution.
-Yaron
On Sun, Sep 30, 2012 at 3:41 PM, Yury Katkov <katkov.ju...@gmail.com> wrote:
> Hi Yaron!
>
> My example is surely very silly and synthetic so let's just forget
> about the flowers
> I'll try to explain the real problem I faced with in a Foresight wiki.
>
> Here is my problem domain. There are several brainstorming sessions
> about the forecasts on a distant future, all of them have different
> topics. Each of those sessions has various objects as the results of
> the brainstorming: future trends, possible technologies that may
> appear in the future, possible important events. All these data are
> loaded to the wiki using the semantic forms. After the brainstorming
> ends, the participants can improve the objects, categorize them and
> link them together.
>
> Here for example I have the Trend objects. I want to connect Trends to
> the Events and to Technologies but only inside the current
> brainstorming session.
>
> The semantic form for Trend will look like that:
> <FORM>...
> {{{field|session name|hidden|required}}} // the only valid way to
> create a trend is using the #formlink on a Session's page. Formlink
> will fill this value with the name of the session
>
> {{{field|related events|values from
> query=[[Category::Event]][[session::$1]]|substitute=Trend[session
> name] | input type=two listboxes}}}
>
> {{{field|related technologies|values from
> query=[[Category::Technology]][[session::$1]]|substitute=Trend[session
> name] | input type=two listboxes}}}
> ...
> <END OF FORM>
>
> I can use values from concept but it's a very bad workaround if I have
> many sessions.
>
> I hope now the case is more clear.
> -----
> Yury Katkov
>
>
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