Adds to Melange a tags framework based on taggable-mixin.
The taggable-mixin allowed only tag per Datastore model. This is extended
framework allows any arbitrary number of tags per Datastore model. Also,
now one can define different models for different Tag types which are all
inherited from the base Tag model provided by taggable-mixin.
The GHOPTask model makes use of 2 tags per model, one for difficulty and the
other for task_type, both using the tags framework.
Reviewed by: Paweł Sołyga
"Memcached cache backend"
from django.core.cache.backends.base import BaseCache, InvalidCacheBackendError
from django.utils.encoding import smart_unicode, smart_str
try:
import cmemcache as memcache
except ImportError:
try:
import memcache
except:
raise InvalidCacheBackendError("Memcached cache backend requires either the 'memcache' or 'cmemcache' library")
class CacheClass(BaseCache):
def __init__(self, server, params):
BaseCache.__init__(self, params)
self._cache = memcache.Client(server.split(';'))
def add(self, key, value, timeout=0):
if isinstance(value, unicode):
value = value.encode('utf-8')
return self._cache.add(smart_str(key), value, timeout or self.default_timeout)
def get(self, key, default=None):
val = self._cache.get(smart_str(key))
if val is None:
return default
else:
if isinstance(val, basestring):
return smart_unicode(val)
else:
return val
def set(self, key, value, timeout=0):
if isinstance(value, unicode):
value = value.encode('utf-8')
self._cache.set(smart_str(key), value, timeout or self.default_timeout)
def delete(self, key):
self._cache.delete(smart_str(key))
def get_many(self, keys):
return self._cache.get_multi(map(smart_str,keys))
def close(self, **kwargs):
self._cache.disconnect_all()