Sha256: 8190f647d76012ecf5addfb51ad97753904bc41f8af2717bb3318c45db26153f
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Versions: 16
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Contents
# frozen_string_literal: true
module Rodbot
class Db
# Database adapter for Redis
#
# All keys are implicitly nested inside the "rodbot:..." namespace to allow
# using one and the same Redis db for more than just Rodbot.
#
# @example Enable in config/rodbot.rb
# db 'redis://localhost:6379/10'
module Redis
include Rodbot::Memoize
def self.extended(*)
require 'redis'
end
def set(*key, expires_in: nil, &block)
block.call((get(*key) unless block.arity.zero?)).tap do |value|
db.set(skey(*key), serialize(value), ex: expires_in)
end
end
def get(*key)
deserialize(db.get(skey(*key)))
end
def delete(*key)
get(*key).tap do
db.del(skey(*key))
end
end
def scan(*key)
cursor, result = 0, []
loop do
cursor, keys = db.scan(cursor, match: skey(*key))
result.append(*keys)
break result if cursor == '0'
end.map { _1[7..] }
end
def flush
db.flushdb
self
end
private
memoize def db
::Redis.new(url: url)
end
def skey(*key)
key.prepend('rodbot').join(':')
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems