중첩 된 자원 ID 매개 변수

중첩 된 리소스 경로를 구축하려고합니다.

먼저 사용자를 생성하고 작업 의지를 생성하고 사용자 카테고리 컨트롤러를 생성하고 항목 컨트롤러를 생성하지만 항목을 생성 할 때 문제가 있습니다.

첫 번째 카테고리 컨트롤러

class  Api::V1::CategoriesController < ApplicationController
  before_action :authenticate_with_token!, only: [:create, :update, :destroy]
  before_action :set_category, only: [:show, :update, :destroy]

  # GET /categories
  def index
    @categories = current_user.category.all

    render json: @categories
  end

  # GET /categories/1
  def show
    render json: @category
  end

  # POST /categories
  def create
    @category = current_user.categories.new(category_params)

    if @category.save
      render json: @category, status: :created
    else
      render json: @category.errors, status: :unprocessable_entity
    end
  end

  # PATCH/PUT /categories/1
  def update
    if @category.update(category_params)
      render json: @category
    else
      render json: @category.errors, status: :unprocessable_entity
    end
  end

  # DELETE /categories/1
  def destroy
    @category.destroy
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_category
      @category = current_user.category.find(params[:id])
    end

    # Only allow a trusted parameter "white list" through.
    def category_params
      params.require(:category).permit(:title)
    end
end

두 번째 항목 컨트롤러

class  Api::V1::ItemsController < ApplicationController
  before_action :authenticate_with_token!, only: [:create, :update, :destroy]
  before_action :set_item, only: [:show, :update, :destroy]

  # GET /items
  def index
    @items = current_type.items.all

    render json: @items
  end

  # GET /items/1
  def show
    render json: @item
  end

  # POST /items
  def create
    @item = current_type.item.new(item_params)

    if @item.save
      render json: @item, status: :created, location: @item
    else
      render json: @item.errors, status: :unprocessable_entity
    end
  end

  # PATCH/PUT /items/1
  def update
    if @item.update(item_params)
      render json: @item
    else
      render json: @item.errors, status: :unprocessable_entity
    end
  end

  # DELETE /items/1
  def destroy
    @item.destroy
    @item.image.purge
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_item
      @item = current_type.item.find(params[:id])
    end

    # Only allow a trusted parameter "white list" through.
    def item_params
      params.require(:item).permit(:title, :price, :image)
    end
end

애플리케이션 컨트롤러

class ApplicationController < ActionController::API
    def current_user
        @current_user ||= User.find_by(auth_token: request.headers['Authorization']) 
      end
        
      def authenticate_with_token!
        render json: { errors: "Not authenticated" },status: :unauthorized unless user_signed_in?
      end
        
      def user_signed_in?
        current_user.present? 
      end
    
      def prepare_user
        @user = User.find(params[:id])
      end
      
      def current_type
        @current_type ||= Type.find(params[:id])
      end


end

내 경로

Rails.application.routes.draw do
  
  devise_for :users
      namespace :api do
        namespace :v1 do
          resources :sessions, :only => [:create, :destroy] 
          resources :users, :only => [:show, :create, :update, :destroy]  do 
            resources :categories do 
              resources :items
            end`
          end
        end
      end
  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
end

ActiveRecord :: RecordNotFound 항목을 만들려고 할 때 (ID없이 유형을 찾을 수 없음) :