(changing topic so that Gmail won't mix it up with the original
Foundation-l discussion for me . . .)
On Fri, Jul 23, 2010 at 6:51 PM, Platonides <Platonides(a)gmail.com> wrote:
> Even if you remove censoring ability from anonymous users, you still
> need to purge from squid cache all pages that include the images when
> category changes.
Only if the category changes in such a way that would affect whether
the image censored by default. I expect that on many wikis there will
be no censored categories at all by default, so on those wikis this
would be never. Images that are likely to ever be in categories
censored by default are very unlikely to be used on many pages, and
Squid cache is much cheaper to purge than parser cache, so I think
this would be acceptable from a performance standpoint. Or we could
just say that anonymous users might get censored-image lists that are
a few days outdated.
Realistically, I don't see very many wikis enabling this feature by
default. Wikis where the community doesn't want a particular type of
image will tend to not use that type of image at all, they won't want
to display it inline but blocked out with a message "Click here if you
want to see naked people!" I see this feature mostly being used by
individuals who object to the standards of a wiki they use.
> There are some large galleries.
> For instance contains 746 files each with 4-5 categories. That's nearly
> 3000 categories being retrieved.
You seem to have left our the link here. But this is an edge case,
and it's still not going to be particular slow -- the query to
retrieve the categories here should take only a few milliseconds.