2010/7/13 James Bowery <[email protected]>:
> What I would like is something very similar called "CellsExtension"
> which provides only the keyword "#cell" as in:
> ---
> {{#expr:{{#cell:pi}}+1}}
> ---
>
> However, it gets the value of "pi" from:
> http://somedomain.org/mediawiki/index.php?title=Pi
>
Just putting 3.141592653589 (as opposed to 3.14159265418, whose last
three digits differ from their counterparts in pi) in [[Template:Pi]]
and using {{#expr:{{pi}}+1}} should have the same effect AFAIK. If you
want [[Template:Pi]] to look more interesting than just the number,
you could use <noinclude> and <includeonly> .
> Ideally, whenever a mediawiki rendered page is cached, dependency
> pointers are created from all pages from which cells fetched values
> during rendering of the page (implying the evaluation of #expr's. That
> way, when the mediawiki source for one of the cached pages is edited,
> not only is its cached rendering deleted, but so are all cached
> renderings that depend on it directly or indirectly. This is so that
> the next time those pages are accessed, they are rendered -- and
> cached -- again, freshly evaluating the formulas in the #expr's
> (which, of course, will contain #cell references such as {{#cell:pi}}).
>
With the template transclusion method I described above, all of this
is already handled by MediaWiki.
Roan Kattouw (Catrope)
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