Question

在游戏中，我有一个10x10的网格，有100个正方形，我试图为一个正方形做一个按钮，当点击时将正方形的：user_id更改为current_user id。

游戏/ show.html.erb

<% @squares.each_slice(10) do |slice| %>
        <% slice.each do |s| %>
            <%= div_for s, class: 'sq' do %>
                <%= s.boardposition %>
                <%= button_to buy_path(s), remote: true, method: :put %>
            <% end %>
        <% end %>
<% end %>

games_controller.rb

def show
    require 'enumerator'
    @user = current_user
    @game = Game.find(params[:id])
    @squares = Square.where(game_id:@game.id).all
end

squares_controller.rb

def buy
    @square = Square.find(square_params)

    respond_to do |format|
        format.js
        if @square.update_attributes(user_id: current_user.id)
            format.html {redirect_to squares_path}
        else
            format.html {redirect_to :back}
        end
    end
end

private

def square_params
    params.require(:square).permit(:xvalue, :yvalue, :user_id, :game_id, :boardposition)
end

Game.rb

has_many :squares
has_and_belongs_to_many :users

validates :roomname, :roomtype, :teamone, :teamtwo, :gamedate, :squareprice, 
:maxsquares, :q1pay, :q2pay, :q3pay, :q4pay, presence: true

accepts_nested_attributes_for :squares

Square.rb

belongs_to :user
belongs_to :game

User.rb

has_and_belongs_to_many :games
has_many :squares

accepts_nested_attributes_for :squares

路由

 resources :games, :users, :squares

 get '/games/:id/join/' => 'games#join', as: :join
 get '/games/:id/buy/' => 'squares#buy', as: :buy

 match '/games/:id/', to: 'squares#buy', via: [:post]

当我点击购买广场时我得到的错误是“SquareStroller中的ActionController :: ParameterMissing＃buy”未找到Param：square。

我已经尝试了一段时间来解决这个问题，我相信我的路线现在是正确的，但我无法通过该参数。任何帮助将不胜感激。

Answer 1

你没有传递方形物体

def square_params
**params.require(:square)**.permit(:xvalue, :yvalue, :user_id, :game_id, :boardposition)
end

以某种方式通过表单提供方形对象，或删除强参数。

Rails嵌套表单更新与Ajax错误

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