ruby-on-rails – 无法让accepted_nested_attributes_for深入两

{"game"=>{"name"=>"championship","teams_attributes"=>[
    {"result"=>"won","players_attributes"=>{"name"=>"Bob"}},{"result"=>"lost","players_attributes"=>{"name"=>"Tad"}}]}}

这是我的模特：

class Game < ActiveRecord::Base
   attr_accessible  :name,:teams_attributes,:players_attributes

   # Associations
   has_many :teams,:inverse_of => :game
   has_many :players,:through => :teams

   accepts_nested_attributes_for :teams
   accepts_nested_attributes_for :players
end

class Team < ActiveRecord::Base
     attr_accessible :game_id,:result,:players_attributes

     # Associations
     belongs_to :game,:inverse_of => :teams
     has_many :players,:inverse_of => :team

     accepts_nested_attributes_for :players
end

class Player < ActiveRecord::Base
  attr_accessible :team_id,:name

  # Associations
  belongs_to :team,:inverse_of => :players
  # belongs_to :game,:through => :team (causes error,doesn't fix)

end

我可以在添加游戏时添加两个团队,但我无法添加游戏,在每个团队中添加两个团队和玩家.我的设置有问题吗？尝试添加时,我不断收到“无法将字符串转换为整数”错误.这是我刚刚玩游戏时遇到的错误>团队,但是当我添加了inverse_of东西时修复了.

谢谢！