def get_enclosure_set(self, seen=None):
key = cache_key(MULTI_LEVEL_MEMBERSHIP_KEY, self)
if redis.exists(key):
return TgGroup.objects.filter(id__in=redis.smembers(key))
es = get_enclosure_id_set(self.__class__, self.id)
add_to_cached_set(key, es)
return TgGroup.objects.filter(id__in=[x for x in es])
def get_enclosure_set(self, seen=None):
key = cache_key(MULTI_LEVEL_MEMBERSHIP_KEY, self)
if redis.exists(key) :
return TgGroup.objects.filter(id__in=redis.smembers(key))
es = get_enclosure_id_set(self.__class__, self.id)
add_to_cached_set(key, es)
return TgGroup.objects.filter(id__in=[x for x in es])
def get_enclosure_ids(cls, id):
""" Note, these are depth 1 membership ids. And note also that all enclosures, are, by definition TgGroup
cls is the actual python class (django model class) ... cache_key takes its name
"""
key = cache_key(ONE_LEVEL_MEMBERSHIP_KEY, cls=cls, id=id)
if redis.exists(key):
return redis.smembers(key)
# if not cached, get the object and get its enclosures
obj = cls.objects.get(id=id)
memberships = set([x.id for x in obj.get_enclosures()])
add_to_cached_set(key, memberships)
return memberships
def get_enclosure_ids(cls,id) :
""" Note, these are depth 1 membership ids. And note also that all enclosures, are, by definition TgGroup
cls is the actual python class (django model class) ... cache_key takes its name
"""
key = cache_key(ONE_LEVEL_MEMBERSHIP_KEY, cls=cls, id=id)
if redis.exists(key) :
return redis.smembers(key)
# if not cached, get the object and get its enclosures
obj = cls.objects.get(id=id)
memberships = set([x.id for x in obj.get_enclosures()])
add_to_cached_set(key, memberships)
return memberships
def get_enclosure_id_set(cls, self_id, seen=None):
key = cache_key(MULTI_LEVEL_MEMBERSHIP_KEY, cls=cls, id=self_id)
if redis.exists(key):
return redis.smembers(key)
if not seen:
seen = set([self_id])
if cls == TgGroup:
es = set([self_id])
else:
es = set([])
for e_id in get_enclosure_ids(cls, self_id):
if e_id not in seen:
seen.add(e_id)
multi_memberships = get_enclosure_id_set(TgGroup, e_id, seen)
es = es.union(set(multi_memberships))
seen = seen.union([m for m in multi_memberships])
add_to_cached_set(key, es)
return es
def get_enclosure_id_set(cls, self_id, seen=None) :
key = cache_key(MULTI_LEVEL_MEMBERSHIP_KEY,cls=cls, id=self_id)
if redis.exists(key) :
return redis.smembers(key)
if not seen :
seen = set([self_id])
if cls == TgGroup :
es = set([self_id])
else :
es = set([])
for e_id in get_enclosure_ids(cls, self_id ) :
if e_id not in seen :
seen.add(e_id)
multi_memberships = get_enclosure_id_set(TgGroup, e_id, seen)
es = es.union(set(multi_memberships))
seen = seen.union([m for m in multi_memberships])
add_to_cached_set(key, es)
return es
