You really should take a look at django-celery<http://celeryq.org/docs/django-celery/getting-started/first-steps-with-django.html>. It is the right tool for this job IMHO.
Brian On Wed, Oct 13, 2010 at 7:38 AM, Mattias Linnap <matt...@linnap.com> wrote: > Hi Django users, > > I'm building an application with Django, and I need some database > changes to occur at certain times in the future - independently of any > web request. Things like cleaning up expired sessions, deleting > expired user actions, etc. > > What is the best way to implement those? > 1) Make a special view, like /cron/, that performs all the scheduled > actions, and use an external script to poll it over HTTP regularly. > Cons: there might be a request timeout in the web server, so only a > small number of very fast actions are possible. > 2) Use standard linux cron, and write a script that calls ./manage.py > with custom commands. Cons: is it a good idea to use manage.py > commands in production? > 3) Try to avoid any time-based database changes, and rewrite the app > so that data objects know if they are "too old". Cons: makes the rest > of the app more complex. > 4) Something else? > > If a bit of background might be useful, I'm building an online sales > app where users can reserve products for up to 2 hours. When the 2 > hours is over, the product is marked as available again. It would be > possible to compute the availability of each product based on the list > of reservations instead of caching it at the object, but this would > require looking through all reservations and sales ever made to know > the current state of a product. > > Thanks for any advice, > > Mattias > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To post to this group, send email to django-us...@googlegroups.com. > To unsubscribe from this group, send email to > django-users+unsubscr...@googlegroups.com<django-users%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/django-users?hl=en. > > -- Brian Bouterse ITng Services -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
