Hi Yury,

Well, you bring up two proposed features for SF here: a standard "values from query" parameter (which you submitted a patch for), and the ability to include variables, representing the current content of some other form field, in the field tag - which could go into a "values from query" parameter, but it wouldn't necessarily have to. I'll just focus on the second one here.

This is a complex need, and one that I think is out of the ordinary: you want users to select a genus, and a color, and then only flowers that match those two fields, and additionally have an owner specified for them, will show up in a listbox.

My main question is, what sort of page is this form meant to edit? Is it a page about a collection of flowers that all share one genus and color? I don't know if this an actual form you're talking about, or just a metaphor for a form that holds more technical data that's harder to explain, but in either case it seems odd. Basically you're talking about creating a subset of a subset - a group of pages that match both solid criteria (the color and the genus) and arbitrary criteria (the user's choice). I haven't heard of that kind of use case - but maybe it makes sense for the circumstances. Could you explain the data structure of this form in more detail?

-Yaron

On Sat, Sep 29, 2012 at 8:38 PM, Yury Katkov <katkov.juriy@gmail.com> wrote:
Hi James!

Example 3 in the documentationlooks very much like my case, thank you
so much!!! I'll try
it tomorrow, maybe it will suit me as a temporary decision. I don't
think that it uses ResourceLoader and am not sure that it is
compatible with the latest versions of MW/SMF/SF.

It also seems Jason Zhang can only use one value to substitute instead
of @@@@, is that right?

Anyway the existence of such extensions shows that more than me alone
need such a feature. Also I'll look at your AJAX calls and hopefully
will be able to answer to a question (1) to developers.

The question (2) to developers remains and also I'm open to discussion
about the syntax.

Cheers,
Yury


On Sun, Sep 30, 2012 at 4:22 AM, James HK <jamesin.hongkong.1@gmail.com> wrote:
> Hi,
>
> See [1] which is an extension that generates option values from a
> semantic query or parser function for a specified form field.
>
> [1] http://www.mediawiki.org/wiki/Extension:SemanticFormsSelect#Query_And_Function_format
>
> Cheers
>
> On 9/30/12, Yury Katkov <katkov.juriy@gmail.com> wrote:
>> Hi everyone!
>>
>> I think I need something like 'values dependent on' but a little bit more
>> powerful for my Forms.
>> I've recently added 'values from query' parameter for the field tag in
>> Semantic Forms (maybe it will be approved), see here for the details [1]
>>
>> What I need is the ability to create the fields like this one:
>>
>> {{field|values from
>> query=[[Category:$1]][[Color::$2]][[Owner::+]]|substitute=Flowers[Genus],Flowers[Color]|input
>> type=listbox}}
>>
>> This listbox will show the following list of possible values:
>> 1) the possible values will be the names of the wikipages
>> 2) all these wikipages will have an Owner property
>> 3) there will be belong to a category that is stored in a field Genus of
>> the template Flowers
>> 4) there will have the property Color and the color will be store in a
>> field called Color
>>
>> My question to the users of SMW: Is anybody interested in such a feature?
>> My questions to SMW\SF developers:
>> 1) is it possible to make semantic queries on the fly using AJAX+SMWAsk
>> API?
>> 2) Our project really needs such a feature. If we program here, is it
>> likely to be merged with the core of Semantic Forms?
>>
>>
>> [1] https://bugzilla.wikimedia.org/show_bug.cgi?id=40629
>> -----
>> Yury Katkov
>>

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