educoder/app/models/game.rb

class Game < ActiveRecord::Base
  # stauts 0: can exe 1：doing 2：successed 3:locked
  default_scope :order => 'created_at desc'
  attr_accessible :myshixun_id, :user_id, :status, :final_score, :challenge_id, :open_time, :identifier, :answer_open, :end_time, :retry_status, :resubmit_identifier
  belongs_to :myshixun,:touch=> true
  belongs_to :user
  belongs_to :challenge
  has_many :outputs, :dependent => :destroy
  has_many :test_sets
  has_many :challenge_samples

  def had_done
    myshixun = self.myshixun
    challenge = self.challenge
    had_done = (myshixun.games.count == challenge.position && self.status == 2) ? 1 : 0
    return had_done
  end

  # id 转换成 challenge'position
  def to_param
    identifier
  end

  def last_game
    challenge = self.challenge
    last_challenge_id = challenge.last_challenge
    game = Game.where(:myshixun_id => self.myshixun_id, :challenge_id => last_challenge_id).first
    render_404 if game.nil?
    return game
  end

  def next_game
    challenge = self.challenge
    next_challenge_id = challenge.next_challenge
    game = Game.where(:myshixun_id => self.myshixun_id, :challenge_id => next_challenge_id).first
    render_404 if game.nil?
    return game
  end

  # 获取game最新的一条输出结果
  def latest_output
    outputs = Output.where(:game_id => self.id).order("created_at desc")
    output = outputs.blank? ? nil : outputs.first
    return output
  end
end