def zrevrangebyscore(self,
name,
min,
max,
start=None,
num=None,
withscores=False):
"""
Return a range of values from the sorted set ``name`` with scores
between ``min`` and ``max`` in descending order.
If ``start`` and ``num`` are specified, then return a slice
of the range.
``withscores`` indicates to return the scores along with the values.
The return type is a list of (value, score) pairs
"""
if (start is not None and num is None) or \
(num is not None and start is None):
raise LedisError("``start`` and ``num`` must both be specified")
pieces = ['ZREVRANGEBYSCORE', name, min, max]
if start is not None and num is not None:
pieces.extend(['LIMIT', start, num])
if withscores:
pieces.append('withscores')
options = {'withscores': withscores}
return self.execute_command(*pieces, **options)
def bcount(self, key, start=None, end=None):
""
params = [key]
if start is not None and end is not None:
params.append(start)
params.append(end)
elif (start is not None and end is None) or \
(start is None and end is not None):
raise LedisError("Both start and end must be specified")
return self.execute_command("BCOUNT", *params)
def mset(self, *args, **kwargs):
"""
Sets key/values based on a mapping. Mapping can be supplied as a single
dictionary argument or as kwargs.
"""
if args:
if len(args) != 1 or not isinstance(args[0], dict):
raise LedisError('MSET requires **kwargs or a single dict arg')
kwargs.update(args[0])
items = []
for pair in iteritems(kwargs):
items.extend(pair)
return self.execute_command('MSET', *items)
def bmsetbit(self, name, *args):
"""
Set any number of offset, value pairs to the key ``name``. Pairs can be
specified in the following way:
offset1, value1, offset2, value2, ...
"""
pieces = []
if args:
if len(args) % 2 != 0:
raise LedisError("BMSETBIT requires an equal number of "
"offset and value")
pieces.extend(args)
return self.execute_command("BMSETBIT", name, *pieces)
def zadd(self, name, *args, **kwargs):
"""
Set any number of score, element-name pairs to the key ``name``. Pairs
can be specified in two ways:
As *args, in the form of: score1, name1, score2, name2, ...
or as **kwargs, in the form of: name1=score1, name2=score2, ...
The following example would add four values to the 'my-key' key:
ledis.zadd('my-key', 1.1, 'name1', 2.2, 'name2', name3=3.3, name4=4.4)
"""
pieces = []
if args:
if len(args) % 2 != 0:
raise LedisError("ZADD requires an equal number of "
"values and scores")
pieces.extend(args)
for pair in iteritems(kwargs):
pieces.append(pair[1])
pieces.append(pair[0])
return self.execute_command('ZADD', name, *pieces)