How do I expire a django template cache key on receiving a signal?

Question

In my front page template I use the cache function like this:

{% cache 86400 my_posts %}
    {% get_latest_posts %}
{% endcache %}

When there i

Answer 1

Note that the md5_constructor in the first line of Benjamin Wohlwend's example above is deprecated. Current (Nov. 2011) version is:

args = hashlib.md5(u':'.join([urlquote(resolve_variable(var, context)) for var in self.vary_on]))