ruby - 露营模型忽略关联

Question

module App::Models
  class Team < Base
    has_many :players
    [...]
  end

  class Player < Base
    belongs_to :team
  end

调用@team.players（或@player.team）时：

NoMethodError at /team/red
undefined method `players' for [#<App::Models::Team (...)>]:ActiveRecord::Relation

我用错了吗？

Answer 1

请注意，您正在调用playersActiveRecord::Relation 的实例。你实际上没有一个团队，你有几个团队的查询。只需附加.first到您的定义@team即可获得第一支球队：

class TeamX
  def get(name)
    @team = Team.where(:name => name).first
  end
end