shogi_server/league/persistent.rb

   1 ## $Id$
   2
   3 ## Copyright (C) 2004 NABEYA Kenichi (aka nanami@2ch)
   4 ## Copyright (C) 2007-2012 Daigo Moriwaki (daigo at debian dot org)
   5 ##
   6 ## This program is free software; you can redistribute it and/or modify
   7 ## it under the terms of the GNU General Public License as published by
   8 ## the Free Software Foundation; either version 2 of the License, or
   9 ## (at your option) any later version.
  10 ##
  11 ## This program is distributed in the hope that it will be useful,
  12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ## GNU General Public License for more details.
  15 ##
  16 ## You should have received a copy of the GNU General Public License
  17 ## along with this program; if not, write to the Free Software
  18 ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19
  20 module ShogiServer
  21
  22 class League
  23
  24   #
  25   # This manages those players who have their player_id.
  26   # Since mk_rate mainly updates the yaml file, basically,
  27   # this only reads data. But this writes some properties.
  28   # TODO Such data should be facoted out to another file
  29   #
  30   class Persistent
  31     def initialize(filename)
  32       @db = YAML::Store.new(filename)
  33       @db.transaction do |pstore|
  34         @db['players'] ||= Hash.new
  35       end
  36     end
  37
  38     #
  39     # trancaction=true means read only
  40     #
  41     def each_group(transaction=false)
  42       @db.transaction(transaction) do
  43         groups = @db["players"] || Hash.new
  44         groups.each do |group, players|
  45           yield group,players
  46         end
  47       end
  48     end
  49
  50     def load_player(player)
  51       return unless player.player_id
  52
  53       hash = nil
  54       each_group(true) do |group, players|
  55         hash = players[player.player_id]
  56         break if hash
  57       end
  58       return unless hash
  59
  60       # a current user
  61       set_player_values(player, hash)
  62     end
  63
  64     def get_players
  65       players = []
  66       each_group(true) do |group, players_hash|
  67         players_hash.each do |key, value|
  68           bp = BasicPlayer.new
  69           bp.player_id = key
  70           set_player_values(bp, value)
  71           players << bp
  72         end
  73       end
  74       return players
  75     end
  76
  77     private
  78     def set_player_values(player, hash)
  79       return if player.nil? || hash.nil?
  80
  81       player.name          = hash['name']
  82       player.rate          = hash['rate'] || 0
  83       player.modified_at   = hash['last_modified']
  84       player.rating_group  = hash['rating_group']
  85       player.win           = hash['win']  || 0
  86       player.loss          = hash['loss'] || 0
  87     end
  88   end # class Persistent
  89
  90 end # class League
  91 end # module ShogiServer