redis_and_msgpack

require "redis"
require "msgpack"

class Location
  MessagePack.mapping({
    lat: Float64,
    lng: Float64,
  })
end

class House
  MessagePack.mapping({
    address:  String,
    location: {type: Location, nilable: true},
  })
end
r=Redis.new
mpdata={"address" => "Crystal дорога раз-два-3-4!", "location" => {"lat" => 12.3, "lng" => 34.5}}.to_msgpack
puts "MPDATA:\n#{mpdata}"
mpdata_s=String.new(mpdata)
puts "MPDATA_S:\n#{mpdata_s.to_slice}"
r.set("mpdata", mpdata_s)
mpobj=r.get("mpdata")
puts "MPOBJ.class=#{mpobj.class}"
if mpobj.is_a?(String)
    puts "MPOBJ (str):\n#{mpobj}"
    puts "MPOBJ (slice):\n#{mpobj.to_slice}"
    house = House.from_msgpack(mpobj.to_slice)
end
p house