box-o-sand/rails/map-mash/app/models/mash_tournament.rb

class MashTournament < ActiveRecord::Base
  belongs_to :requester
  has_many :mashes
  has_many :rounds, :class_name => 'MashTournamentRound'

  def next_unplayed_mash
    mash = self.mashes.unplayed.first
    if not mash
      filled = self.builder.fill_in_next_round
      if filled
        return self.mashes.unplayed.first
      else
        return nil
      end
    else
      return mash
    end
  end

  def done?
    self.rounds.collect(&:done?).uniq == [true]
  end

  def round(number = 0)
    MashTournamentRound.find_by_mash_tournament_id(self.id,
        :conditions => {:number => number}
    )
  end

  def builder
    MashTournamentBuilder.new(
      self, MashTournament, MashTournamentRound, Map, Mash
    )
  end
end