Ruby on rails 集合关联帮助程序用于创建模型记录时失败_Ruby On Rails_Rails Activerecord

Ruby on rails 集合关联帮助程序用于创建模型记录时失败

ruby-on-rails

Ruby on rails 集合关联帮助程序用于创建模型记录时失败,ruby-on-rails,rails-activerecord,Ruby On Rails,Rails Activerecord,我设置了rails模型，这样一个玩家可以关联到许多俱乐部s，而俱乐部可以关联到许多玩家s 这些模型通过一个名为PlayerClub的连接记录联系在一起，有许多：通过关联 class Player < ApplicationRecord has_many :player_clubs, dependent: :destroy has_many :clubs, through: :player_clubs accepts_nested_attributes_for :clubs, a

我设置了rails模型，这样一个

玩家可以关联到许多俱乐部
s，而俱乐部
可以关联到许多玩家
s
这些模型通过一个名为PlayerClub
的连接记录联系在一起，有许多：通过关联
class Player < ApplicationRecord
  has_many :player_clubs, dependent: :destroy
  has_many :clubs, through: :player_clubs
  accepts_nested_attributes_for :clubs, allow_destroy: true
end

class Club < ApplicationRecord
  has_many :player_clubs, dependent: :destroy
  has_many :players, through: :player_clubs
  accepts_nested_attributes_for :players, allow_destroy: true
end

class PlayerClub < ApplicationRecord
  belongs_to :player
  belongs_to :club

  validates :player, presence: true
  validates :club, presence: true
end

虽然上述操作适用于更新
，但不适用于初始化：
> @player = Player.new({ name: "Foo", club_ids: [1,2,3] })

ActiveRecord::RecordNotFound: Couldn't find Player without an ID
from /Users/jeeves/.rvm/gems/ruby-2.5.5/gems/activerecord-6.0.0/lib/active_record/relation/finder_methods.rb:423:in `find_with_ids'

它感觉像是club#u id=
应该像其他属性编写器一样工作，但它首先需要一个Player#id
，这样它就可以在加入记录上设置PlayerClub#Player#u id

这是故意的行为吗？有什么好办法吗
谢谢 我尝试在这里重新创建它，但无法得到相同的异常。当你建立关系时，你是否有可能在寻找球员的回电？如果俱乐部不存在，我唯一能做的就是重新创建一个例外。
> @player = Player.new({ name: "Foo", club_ids: [1,2,3] })

ActiveRecord::RecordNotFound: Couldn't find Player without an ID
from /Users/jeeves/.rvm/gems/ruby-2.5.5/gems/activerecord-6.0.0/lib/active_record/relation/finder_methods.rb:423:in `find_with_ids'