Gergo, good to know, thanks. Graph extension itself does not know how long
the data is valid - it simply gets a URL from which to get the pageviews
(or any other) data. At this point, only the person who writes the graph
template knows how long its valid for.
We could add an extra attribute to the graph, e.g. <graph refresh="60">
(number of minutes), to let graph extension update cache expiry.
On Thu, Feb 18, 2016 at 11:04 PM, Gergo Tisza <gti...@wikimedia.org> wrote:
> On Thu, Feb 18, 2016 at 9:02 AM, Yuri Astrakhan <yastrak...@wikimedia.org>
> wrote:
>
> > It will be updated whenever the page containing the template is
> > re-generated (e.g. the page is changed, or someone does a null-save). I
> > heard that every page is forcefully regenerated if its older than 30
> days,
> >
>
> Yes, and extension tags embedded in the page can reduce that, so if the
> graph has a way of knowing how long the data will be valid, it can tell
> that to the parser via ParserOutput::updateCacheExpiry.
> As a hacky manual workaround, you can put <div
> style="display:none">{{CURRENTHOUR}}</div> into the page to force hourly
> refresh.
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