Question

我正在尝试在我的应用程序中创建一个属性，该属性具有指向与该属性关联的库的链接。问题是当我尝试创建第一个属性时出现错误，因为此链接位于属性表单<%= link_to "Add Pictures", new_property_gallery_path(@property) %>的底部。

我想基本上创建一个属性，然后有一个链接来创建一个与该属性相关联的库。那是我的目标。

以下是我得到的实际错误输出，显示我错过了我的属性参数：

enter image description here

这是我的路线文件

Rails.application.routes.draw do

  devise_for :users, :controllers => { registrations: 'registrations' }

  resources :pictures

  resources :properties do
    resources :galleries
  end

  resources :spaces do
    collection do
      get 'search'
    end
    resources :galleries
    resources :contracts
    resources :reviews
  end

  root 'spaces#index'
  get 'payment' => "contracts#payment"
  get 'dashboard' => "spaces#dashboard"

  get 'about_us' => "marketing_pages#about_us"
  get 'team' => "marketing_pages#team"
  get 'how_it_works' => "marketing_pages#how_it_works"

#new code trying to set up messaging
  resources :users

  get "/messages" => redirect("/conversations")
  resources :messages do
  member do
    post :new
  end
end
resources :conversations do
  member do
    post :reply
    post :trash
    post :untrash
  end
 collection do
    get :trashbin
    post :empty_trash
 end
end





  # The priority is based upon order of creation: first created -> highest priority.
  # See how all your routes lay out with "rake routes".

  # You can have the root of your site routed with "root"
  # root 'welcome#index'

  # Example of regular route:
  #   get 'products/:id' => 'catalog#view'

  # Example of named route that can be invoked with purchase_url(id: product.id)
  #   get 'products/:id/purchase' => 'catalog#purchase', as: :purchase

  # Example resource route (maps HTTP verbs to controller actions automatically):
  #   resources :products

  # Example resource route with options:
  #   resources :products do
  #     member do
  #       get 'short'
  #       post 'toggle'
  #     end
  #
  #     collection do
  #       get 'sold'
  #     end
  #   end

  # Example resource route with sub-resources:
  #   resources :products do
  #     resources :comments, :sales
  #     resource :seller
  #   end

  # Example resource route with more complex sub-resources:
  #   resources :products do
  #     resources :comments
  #     resources :sales do
  #       get 'recent', on: :collection
  #     end
  #   end

  # Example resource route with concerns:
  #   concern :toggleable do
  #     post 'toggle'
  #   end
  #   resources :posts, concerns: :toggleable
  #   resources :photos, concerns: :toggleable

  # Example resource route within a namespace:
  #   namespace :admin do
  #     # Directs /admin/products/* to Admin::ProductsController
  #     # (app/controllers/admin/products_controller.rb)
  #     resources :products
  #   end
end

这是properties_controller.rb

class PropertiesController < ApplicationController
  before_action :authenticate_user!, only: [:index, :new, :edit, :create, :update, :destroy]
  before_action :set_property, only: [:show, :edit, :update, :destroy]

  # GET /properties
  # GET /properties.json
  def index
    @properties = Property.all
  end

  # GET /properties/1
  # GET /properties/1.json
  def show
  end

  # GET /properties/new
  def new
    @property = Property.new
  end

  # GET /properties/1/edit
  def edit
  end

  # POST /properties
  # POST /properties.json
  def create
    @property = Property.new(property_params)
    @property.landlord_id = current_user.id

    respond_to do |format|
      if @property.save
        format.html { redirect_to @property, notice: 'Property was successfully created.' }
        format.json { render :show, status: :created, location: @property }
      else
        format.html { render :new }
        format.json { render json: @property.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /properties/1
  # PATCH/PUT /properties/1.json
  def update
    respond_to do |format|
      if @property.update(property_params)
        format.html { redirect_to @property, notice: 'Property was successfully updated.' }
        format.json { render :show, status: :ok, location: @property }
      else
        format.html { render :edit }
        format.json { render json: @property.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /properties/1
  # DELETE /properties/1.json
  def destroy
    @property.destroy
    respond_to do |format|
      format.html { redirect_to properties_url, notice: 'Property was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

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

    # Never trust parameters from the scary internet, only allow the white list through.
    def property_params
      params.require(:property).permit(:name, :description, :neighborhood, :street, :city, :state, :country, :company, :price, :amenities, :status, :building_owner, :building_class, :images)
    end
end

Answer 1

问题是我在尝试创建第一个时遇到错误属性因为此链接位于属性表单的底部 <%= link_to "Add Pictures", new_property_gallery_path(@property) %>

您有nested routes 图库嵌套在属性中。如果您使用此链接创建属性<%= link_to "Add Pictures", new_property_gallery_path(@property) %>，那么它将无效，因为它应该用于为 <创建 新图库 em>关联属性 ，它期望property_id不应该 nil 。

如果您想先创建属性，请使用以下链接。

<%= link_to "Add Property", new_property_path %>

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