在 Rails 中重新嵌套资源路由

ReNesting Resource Routes in Rails

所以我只是将我的一个对象作为我的用户对象的嵌套资源。现在我所有的链接都不起作用,我的索引也不会显示。我收到错误:

/views/photos/index.html.haml where line #8 raised:

No route matches {:action=>"show", :controller=>"photos", :id=>nil, :user_id=>nil} missing required keys: [:id, :user_id]

这一行是它发现问题的地方:

  = link_to photo.title, user_photo_path(@user, @photos)

这是我的照片对象控制器:

class PhotosController < ApplicationController
before_action :find_photo, only: [:show, :edit, :update, :destroy, :upvote, :downvote]
before_action :authenticate_user!, except: [:index, :show]

def index
    @photos = Photo.all.order(:cached_weighted_score => :desc)
end

def show
@comments = Comment.where(photo_id: @photo)
@photo = Photo.find(params[:id])
end

我的路线是这样的:

Rails.application.routes.draw do
devise_for :users
root 'photos#index'
resources :users do
resources :photos do
    member do
      get "like",  to: "photos#upvote"
      get "unlike", to: "photos#downvote"
    end
    resources :comments
  end
 end
end

这是我的用户控制器:

class UsersController < ApplicationController

def show
  @user = User.find_by(params[:id])
  @photos= @user.photos.order(:cached_weighted_score => :desc)
end
end

最后生成错误代码的视图:

    .container
  .row
    .col-lg-12
      %h1.page-header Most Popular Photos
    - @photos.each do |photo|
      .thumbnail.col-lg-3.col-md-4.col-xs-6.thumb
        %h2
          = link_to photo.title, user_photo_path(@user, @photo)
          = link_to (image_tag photo.image.url(:small)), photo
        %p
          = photo.get_likes.size
          Likes
  = link_to "Add New Photo", new_photo_path

感谢任何帮助。我最后的更改是将照片路由添加到用户路由下方。

第二个参数需要是循环中的照片实例而不是@photo,这可能是 nil:

= link_to photo.title, user_photo_path(@user, photo)

更新 1:您还需要在 PhotosController#show 中加载@user:

@user = User.find_by(params[:user_id])