Question

我想从类'attributes

创建一个列表

我是ruby的新手 - 我有一个名为fixture的activerecord类，以及“Home Team”，“Draw”，“Away team”的数组，其中主队和客队都是Fixture表中的字段< / p>

我已经在Fixture类中提出了以下代码 - 如何访问类的值？

self.fix_list = [home_team.title, "Draw", away_team.title]

Answer 1

我认为“Fixture”对于模型而言是一个非常糟糕的名称。反正：

class Fixture < ActiveRecord::Base
  belongs_to :home_team, :class_name => "Team", :foreign_key => "home_team_id"
  belongs_to :away_team, :class_name => "Team", :foreign_key => "away_team_id"
  named_scope :with_team, lambda { |team_id| { :conditions => ['(home_team_id = ? 
    or away_team_id = ?)', team_id, team_id]} }

  def fix_list
    [home_team.title, "Draw", away_team.title]
  end
end

class Team < ActiveRecord:Base
  def fixtures
    Fixture.with_team(id)
  end
end

当然，在迁移“灯具”表时，您需要创建名为home_team_id和away_team_id的列。

编辑：我只是注意到has_many中我最初的Team关联没用。那named_scope未经测试，我现在要睡觉了！

activerecord中的类方法/数组

1 个答案: