Re: [Semediawiki-user] {{#switch}} Parser Function

[Markus <ma...@ai...>]

On Dienstag, 4. Dezember 2007, Yaron Koren wrote:
> I don't know why exactly this is failing, but if you split up the "#switc=
h"
> call and the SMW call into two separate parts, it should work. The templa=
te
>
> could look more like this:
> |{{#switch: {{{works|}}}
> |
>  | yes
>
> ...plus all the rest, and then this:
>
> [[Does it work::{{{works|}}}]]
>
> You can refer to a value more than once in the same template.


Yes, such issues unfortunately tend to appear in MediaWiki when combining=20
different extensions ... it basically is a question of the order in which=20
extension syntax is processed -- if switch gets to see SMW's syntax it will=
=20
be slightly confused, and after processing it just removes that part so tha=
t=20
SMW cannot see it.

Yaron's solution is probably best. Note that you can hide the second=20
occurrence of {{{works|}}} by writing "[[Does it work::{{{works|}}}| ]]".=20
Also note that the default empty value in {{{works|}}} is not very helpful =
=2D-=20
you will get an annotation error when this case occurs. An alternative is t=
o=20
use {{#if to check whether {{{works}}} is given and annotate only in that=20
case. Something like "{{#if:{{{works|}}}|[[Does it work::{{{works|}}}| ]]|}=
}"=20
should do that (yes, MediaWiki coding is sometimes ugly ...).

=2D- Markus

>
> -Yaron
>
> On Nov 30, 2007 10:53 PM, <di...@gm...> wrote:
> >  I'm afraid I'm not too knowledgeable on the technical aspects of this,
> > but here goes.
> >
> > I have a template which I want to convert for use with Semantic MediaWi=
ki
> > (already set up on a local testing server, 1.0RC2). However, it makes u=
se
> > of the {{#switch}} function contained in the ParserFunctions extensions.
> >
> > What it does is colour the background of a table cell a different colour
> > depending on the value in the argument/variable.
> >
> > So currently it looks like:
> > |{{#switch: {{{works|}}}
> > |
> >  | yes
> >  | YES
> >  | Yes =3D style=3D"background:palegreen"
> >  | no
> >  | NO
> >  | No =3D style=3D"background:salmon"
> >  | partial
> >  | PARTIAL
> >  | Partial =3D style=3D"background:skyblue"
> >
> > }}|{{{celltext|}}}
> >
> > Converted to be property-based for use with SMW it looks like this:
> > |{{#switch: [[Does it work::{{{works|}}}]]
> > |
> >  | yes
> >  | YES
> >  | Yes =3D style=3D"background:palegreen"
> >  | no
> >  | NO
> >  | No =3D style=3D"background:salmon"
> >  | partial
> >  | PARTIAL
> >  | Partial =3D style=3D"background:skyblue"
> >
> > }}|[[Cell text::{{{50note|}}}]]
> >
> > The function obviously doesn't recognize the argument since it's not
> > formatted for correct use with it.
> >
> > I'm sure there's something missing here, but information seems to be all
> > over the place and not so easy to find what you're looking for, or to
> > understand it (or maybe I'm just useless).
> >
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=2D-=20
Markus Kr=F6tzsch
Institut AIFB, Univers=E4t Karlsruhe (TH), 76128 Karlsruhe
phone +49 (0)721 608 7362        fax +49 (0)721 608 5998
ma...@ai...        www  http://korrekt.org