I m Learning Duncan on Railways form helpers and Read the https://guides.rubyonrails.org/form_helpers.html 文件 我试图用我的电脑进行操练,但正如文件所描述的那样,这只是打赢了不起的工作。

    Started POST "/players" for ::1 at 2023-09-15 22:48:45 -0600
    Processing by PlayersController#create as TURBO_STREAM
      Parameters: {"authenticity_token"=>"[FILTERED]", "player"=>{"name"=>"Luis", "number"=>"45",        "jersey"=>{"size"=>"M"}}, "commit"=>"Create Player"}
    Unpermitted parameter: :jersey. Context: { controller: PlayersController, action: create,   request: #<ActionDispatch::Request:0x00007f117a4a0640>, params: {"authenticity_token"=>"   [FILTERED]", "player"=>{"name"=>"Luis", "number"=>"45", "jersey"=>{"size"=>"M"}},    "commit"=>"Create Player", "controller"=>"players", "action"=>"create"} }

And the Jersey relationship is not persisted. I m using Rails 7.0.8 and ruby 3.2.1 on an Ubuntu 22.04.3 LTS on a Acer Nitro AN515-55

This is the code involved: Models are: Player Has_many Jersey

    class Player < ApplicationRecord
      has_many :jerseys, dependent: :destroy
      accepts_nested_attributes_for :jerseys
    end
    class Jersey < ApplicationRecord
      belongs_to :player
    end

参与者——控制者(仅指数、新指数、创造力和角色)

# GET /players or /players.json
      def index
        @players = Player.all
        @player = Player.new
      end
    # GET /players/new
      def new
        @player = Player.new
      end
    # POST /players or /players.json
      def create
        @player = Player.new(player_params)
        respond_to do |format|
          if @player.save
            format.html { redirect_to players_url, notice: "Player was successfully created." }
            format.json { render :show, status: :created, location: @player }
          else
            format.html { render :new, status: :unprocessable_entity }
            format.json { render json: @player.errors, status: :unprocessable_entity }
          end
        end
      end
     # Only allow a list of trusted parameters through.
        def player_params
          params.require(:player).permit(:name, :number, jerseys_attributes: [:id, :size])
        end

我的表格载于指数。

<%= form_with(model: @player) do |form| %>
      <div>
        <%= form.label :name, style: "display: block" %>
        <%= form.text_field :name %>
      </div>

      <div>
        <%= form.label :number, style: "display: block" %>
        <%= form.number_field :number %>
      </div>

      <div>
        <%= form.fields_for :jersey do |jersey_form| %>
          <%= jersey_form.label :size, style: "display: block" %>
          <%= jersey_form.text_field :size %>
        <% end %>
      </div>

      <div>
        <%= form.submit %>
      </div>
    <% end %>

    <div id="players">
      <% @players.each do |player| %>
        <%= render player %>
        <p>
          <%= link_to "Show this player", player %>
        </p>
      <% end %>
    </div>

    <%= link_to "New player", new_player_path %>

我还努力:

    <%= form.fields_for :jersey, @player.jerseys do |jersey_form| %>

但它也是同样的结果...... 现在我不知道什么是错的,这是一个简单的例子,但我无法工作。