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class Redis
class Store < self
module Ttl
def set(key, value, options = nil)
if ttl = expires_in(options)
setex(key, ttl.to_i, value, :raw => true)
else
super(key, value, options)
end
end
def setnx(key, value, options = nil)
if ttl = expires_in(options)
setnx_with_expire(key, value, ttl.to_i, options)
else
super(key, value)
end
end
protected
def setnx_with_expire(key, value, ttl, options = {})
with_multi_or_pipelined(options) do |transaction|
if transaction.is_a?(Redis::Store) # for redis < 4.6
setnx(key, value, :raw => true)
expire(key, ttl)
else
transaction.setnx(key, value)
transaction.expire(key, ttl)
end
end
end
private
def expires_in(options)
if options
# Rack::Session Merb Rails/Sinatra
options[:expire_after] || options[:expires_in] || options[:expire_in]
end
end
def with_multi_or_pipelined(options, &block)
return pipelined(&block) if options.key?(:cluster) || options[:avoid_multi_commands]
multi(&block)
end
end
end
end
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