On Feb 9, 12:14 am, bfrederi <brfrederi...@gmail.com> wrote:
> I have some data that I retrieve using urllib and then cache on a
> different server that I frequently use through my site. Since it gets
> used so frequently, I was wondering why it might be a good/bad idea to
> make the urllib request in the settings.py. It's data that gets
> changed infrequently, but should update every once in a while, but I'd
> prefer that it stayed in local memory as much as possible, since it
> gets used so much. Any advice on how to make a dynamic global variable
> like that is much appreciated.
Don't do that in settings.py. Use Django's caching framework. Or
something like:
class MyUrlLoader(object):
cache = {} # map of url -> (timeout cutpoint, data)
def get_data(url):
val = self.cache.get(url)
if val is None or datetime.now() > val[0]:
val = (datetime.now() + timedelta(seconds=60),
loaded_data)
self.cache[url] = val
return val[1]
No idea if the above actually works, but the idea should work. But you
really are duplicating what the cache framework does, so first try
that.
- Anssi
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