Question

我正在尝试创建一个同时创建游戏和游戏玩家的表单。我遇到的问题是，当我提交表单时，会创建游戏，但游戏玩家不会。

我环顾四周，但没有找到任何有用的答案。

游戏模型

class Game < ActiveRecord::Base
  belongs_to :league
  has_many :game_players, :dependent => :destroy
  accepts_nested_attributes_for :game_players

  attr_accessible :league_id, :game_date

  validate :league_id,  :presence => true
end

Game_Player模型

class GamePlayer < ActiveRecord::Base
  belongs_to :game
  has_many :users

  validate :game_id,  :presence => true
  validate :user_id,  :presence => true
end

游戏控制器

class GamesController < ApplicationController
  def new
    @title = "New Game"
    @game = Game.new
    3.times { @game.game_players.build }
  end

  def create
    @game = Game.new(:league_id => cookies[:league_id])
    if @game.save
      flash[:success] = "Succesfully Created Game"
      redirect_to League.find_by_id(cookies[:league_id])
    else
      @title = "New Game"
      render 'new'
    end
  end

表格

<%= form_for @game do |f| %>
  <%= f.fields_for :game_players do |builder| %>
    <p>
      <%= builder.label :user_id, "User" %><br />
      <%= builder.text_field :user_id %><br />
</p>
  <% end %>
  <p><%= f.submit "Submit" %></p>
<% end %>

Answer 1

您很可能需要将:game_players_attributes传递给attr_accessible，因为.new尊重质量分配安全性

嵌套表单不保存嵌套模型Rails 3

1 个答案: