def after_insert(self, mapper, connection, instance):
cache = get_cache()
expires = self.get_expires(instance, "create")
for expire in expires:
md5key, key = self.get_key_from_expires(instance, expire)
logging.debug("Invalidando chave[%s] no cache on insert [%s]" % (key, instance))
cache.delete(md5key)
return EXT_CONTINUE
def after_update(self, mapper, connection, instance):
if not Session.object_session(instance).is_modified(instance, include_collections=False, passive=True): return EXT_STOP
cache = get_cache()
expires = self.get_expires(instance, "update")
for expire in expires:
md5key, key = self.get_key_from_expires(instance, expire)
logging.debug("Invalidando chave[%s] no cache on update [%s]" % (key,instance))
cache.delete(md5key)
# espira a instancia
md5key, key = self.get_key_from_mapper(mapper,instance)
logging.debug("Invalidando chave[%s] no cache on update [%s]" % (key,instance))
cache.delete(md5key)
return EXT_CONTINUE
def get(self, ident, **kw):
mapper = self._mapper_zero()
session = self.session
cache = get_cache()
# logging.debug("%s.................................................." % datetime.now().strftime("%H:%M:%S:%f"))
try:
ident = long(ident)
except TypeError:
if type(ident) in (tuple, list):
ident = long(ident[0])
key = mapper.identity_key_from_primary_key([ident])
cacheobj = session.identity_map.get(key)
if cacheobj and hasattr(cacheobj, "__no_session__") and cacheobj.__no_session__:
session.expunge(cacheobj)
cacheobj = None
cache_key, keystr = CachedQuery.generate_key(key[0], ident)
if not cacheobj:
if not (hasattr(key[0], "__no_cache__") and key[0].__no_cache__):
cacheobj = cache.get(cache_key)
if cacheobj is not None:
logging.debug("CachedQuery [CACHE] -> recuperando do cache e setando na sessao")
cacheobj.__dict__["_sa_instance_state"] = attributes.instance_state(cacheobj)
session.add(cacheobj)
else:
logging.debug("CachedQuery [BANCO] -> nao existe no cache, pega do banco %s" % keystr)
cacheobj = super(CachedQuery, self).get(ident)
if cacheobj is None:
return None
logging.debug("CachedQuery [CACHE] -> setando no cache %s" % cacheobj)
cache.set(cache_key, cacheobj)
else:
logging.debug("CachedQuery [SESSION] -> recuperando da sessao ")
# logging.debug("%s.................................................." % datetime.now().strftime("%H:%M:%S:%f"))
return cacheobj
