def _get_objects_for_keys(self, model, keys):
# First we fetch any keys that we can from the cache
results = cache.get_many(
[get_cache_key_for_pk(model, k) for k in keys])
# Now we need to compute which keys weren't present in the cache
missing = [
k for k in keys if get_cache_key_for_pk(model, k) not in results
]
# We no longer need to know what the keys were so turn it into a list
results = results.values()
# Query for any missing objects
# TODO: should this only be doing the cache.set if it's from a CachedModel?
# if not then we need to expire it, hook signals?
objects = list(model._default_manager.filter(pk__in=missing))
for o in objects:
cache.set(o.cache_key, o)
results.extend(objects)
# Do a simple len() lookup (maybe we shouldn't rely on it returning the right
# number of objects
cnt = len(missing) - len(objects)
if cnt:
raise CacheMissingWarning("%d objects missing in the database" %
(cnt, ))
return results
def _get_objects_for_keys(self, model, keys):
# First we fetch any keys that we can from the cache
results = cache.get_many([get_cache_key_for_pk(model, k) for k in keys])
# Now we need to compute which keys weren't present in the cache
missing = [k for k in keys if get_cache_key_for_pk(model, k) not in results]
# We no longer need to know what the keys were so turn it into a list
results = results.values()
# Query for any missing objects
# TODO: should this only be doing the cache.set if it's from a CachedModel?
# if not then we need to expire it, hook signals?
objects = list(model._default_manager.filter(pk__in=missing))
for o in objects:
cache.set(o.cache_key, o)
results.extend(objects)
# Do a simple len() lookup (maybe we shouldn't rely on it returning the right
# number of objects
cnt = len(missing) - len(objects)
if cnt:
raise CacheMissingWarning("%d objects missing in the database" % (cnt,))
return results
def _get_cache_key_for_pk(model, pk):
return get_cache_key_for_pk(model, pk)
def _get_cache_key_for_pk(model, pk):
return get_cache_key_for_pk(model, pk)
