app/django/core/cache/backends/memcached.py
author Sverre Rabbelier <srabbelier@gmail.com>
Tue, 02 Dec 2008 17:59:44 +0000
changeset 647 355ac73823a1
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Swap order of merged params to fix sponsor select view The sponsor select view (in 'create new program') was showing the wrong information (and also using the wrong list template) because the order in which the params were merged was wrong way around. This fixes that and at the same time fixes the 'instruction_text' attribute, which should be named 'list_description' instead. At the same time we lookup and set Sponsor as the scope of the newly created program. Patch by: Sverre Rabbelier

"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()