Bug fixes to revision r596. User Account field in Developer User Profile view needs to be an email not a login name. Header title of User Profile Developer view, when form validation failes is now showing correct value ("Modify existing ..." instead of "Create new user ...").
from django.template import Library, Node, TemplateSyntaxError
from django.template import resolve_variable
from django.core.cache import cache
from django.utils.encoding import force_unicode
register = Library()
class CacheNode(Node):
def __init__(self, nodelist, expire_time, fragment_name, vary_on):
self.nodelist = nodelist
self.expire_time = expire_time
self.fragment_name = fragment_name
self.vary_on = vary_on
def render(self, context):
# Build a unicode key for this fragment and all vary-on's.
cache_key = u':'.join([self.fragment_name] + \
[force_unicode(resolve_variable(var, context)) for var in self.vary_on])
value = cache.get(cache_key)
if value is None:
value = self.nodelist.render(context)
cache.set(cache_key, value, self.expire_time)
return value
def do_cache(parser, token):
"""
This will cache the contents of a template fragment for a given amount
of time.
Usage::
{% load cache %}
{% cache [expire_time] [fragment_name] %}
.. some expensive processing ..
{% endcache %}
This tag also supports varying by a list of arguments::
{% load cache %}
{% cache [expire_time] [fragment_name] [var1] [var2] .. %}
.. some expensive processing ..
{% endcache %}
Each unique set of arguments will result in a unique cache entry.
"""
nodelist = parser.parse(('endcache',))
parser.delete_first_token()
tokens = token.contents.split()
if len(tokens) < 3:
raise TemplateSyntaxError(u"'%r' tag requires at least 2 arguments." % tokens[0])
try:
expire_time = int(tokens[1])
except ValueError:
raise TemplateSyntaxError(u"First argument to '%r' must be an integer (got '%s')." % (tokens[0], tokens[1]))
return CacheNode(nodelist, expire_time, tokens[2], tokens[3:])
register.tag('cache', do_cache)