On 29/07/2010 15:41, Jirka Vejrazka wrote:
>> ret_val = stats_top_callers_per_year(_request)
>> cache.set(reverse("stats_top_callers_per_year"), ret_val)
>
> Hi,
>
> it's your code and I won't try talk you out of it :)
>
> However, I don't see any reason why you couldn't call
> "stats_top_caller_per_year" from an external script, unless you do
> some magic related to request in that function. You're overriding the
> user to be the one with pk=1 anyway, so you can do the same in a
> script launched by cron the same way.
>
> As long as you have a system-wide cache (ideally memcached backend),
> nothing prevents you from doing that.
>
> As for the cache key, it can be anything you want as long as it's
> unique, less than the backend allows (I think it's 250 chars for
> memcached, see the docs) and does not contain whitespaces (some cache
> backends do allow those). A common idiom is an md5 of something that
> uniquely identifies the cache object, but in your case you'd be free
> to call it "stats_top_callers_per_year" or similar. No need to play
> with reverse().
>
> It's all just Python and Django does not really get much in a way
> unless needed. So, no one tells you what the cache keys must look
> like, and it's unlikely that you'd stumble upon cache keys Django uses
> internally.
>
> HTH
>
> Jirka
>
I could indeed, as you correctly point out, put it in a cronjob provided
that i can access the cache that is currently used byt the site.
I haven't yet found how to do that. Probably not that hard.
But i don't see a benefit to putting the code in a cronjob.
Apparently, you do, so could you enlighten me? :)
There are probably some good and valid reasons.
The reason why i like the current approach, is that it's just 1 action to start
the site and there is no need to check other things if something goes
wrong. I can tell my colleagues to just start the site and that's it.
As for the cache key, i did the reverse because i thought i had
read in the documentation that this was the standard way Django puts
stuff in the cache.
But it's not the link as returned by reverse, though i haven't found yet
what it is. If i find it, i can set i correctly in the thread so that I don't
have to manually check to see if the page is cached when a statistics page
is called.
Regards,
Benedict
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