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我正在尝试制作相册网络应用程序。有 3 个模型：用户、相册、图片。

配置/路由

Pholder::Application.routes.draw do
resources :users do
  resources :albums do
    resources :photos
  end
end

我设法创建用户并在用户下制作专辑，如您在专辑#show 的 URL 中所见：

http://localhost:3000/users/20/albums/94（没问题）

但是，在该页面上，我想创建一个链接以在所有用户名下的相册下创建照片（其 URL 类似于 /users/20/albums/94/photos/new），并按照我的rake routes做法有一条new_album_photo路。这是我的相册/显示视图

显示.html.erb

<% if @album.photos.any? %>
yes  pics
<% else %>
no  pics
<% end %>


<%= link_to "Upload new pics!", new_album_photo_path(@album) %>

但是，当我单击它时，会出现两个问题。

  1. 我收到错误：No route matches [GET] "/albums/94/photos/new"
  2. 该 URL 中没有 user_id http://localhost:3000/albums/94/photos/new...... 我的模型可能是造成这种情况的原因吗（因为根据我的模型，专辑由多个用户拥有？我不确定是否应该删除连接表，只让Album模型成为连接表（也许连接表是罪魁祸首?)

这可能是因为我的模型吗？还是我在路由助手中传递了错误的参数？

这是我的模型以防万一。楷模：

class User < ActiveRecord::Base

  has_secure_password
  attr_accessible :email, :name, :password, :password_confirmation
  validates_presence_of :password, :on => :create

  validates_format_of :name, :with => /[A-Za-z]+/, :on => :create
  validates_format_of :email, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i, :on => :create
  validates_length_of :password, :minimum => 5, :on => :create

  has_many :album_user
  has_many :albums, :through => :album_user
  accepts_nested_attributes_for :albums

end


class AlbumUser < ActiveRecord::Base
  belongs_to :album
  belongs_to :user
end


class Album < ActiveRecord::Base
  attr_accessible :avatar, :name, :description
  has_many :album_user
  has_many :users, :through => :album_user
  has_many :photos
end


class Photo < ActiveRecord::Base
  belongs_to :album
end

路线

     user_albums GET    /users/:user_id/albums(.:format)            albums#index
                 POST   /users/:user_id/albums(.:format)            albums#create
  new_user_album GET    /users/:user_id/albums/new(.:format)        albums#new
 edit_user_album GET    /users/:user_id/albums/:id/edit(.:format)   albums#edit
      user_album GET    /users/:user_id/albums/:id(.:format)        albums#show
                 PUT    /users/:user_id/albums/:id(.:format)        albums#update
                 DELETE /users/:user_id/albums/:id(.:format)        albums#destroy
           users GET    /users(.:format)                            users#index
                 POST   /users(.:format)                            users#create
    new_user GET    /users/new(.:format)                        users#new
       edit_user GET    /users/:id/edit(.:format)                   users#edit
            user GET    /users/:id(.:format)                        users#show
                 PUT    /users/:id(.:format)                        users#update
                 DELETE /users/:id(.:format)                        users#destroy
    album_photos GET    /albums/:album_id/photos(.:format)          photos#index
                 POST   /albums/:album_id/photos(.:format)          photos#create
 new_album_photo GET    /albums/:album_id/photos/new(.:format)      photos#new
edit_album_photo GET    /albums/:album_id/photos/:id/edit(.:format) photos#edit
     album_photo GET    /albums/:album_id/photos/:id(.:format)      photos#show
                 PUT    /albums/:album_id/photos/:id(.:format)      photos#update
                 DELETE /albums/:album_id/photos/:id(.:format)      photos#destroy
          albums GET    /albums(.:format)                           albums#index
                 POST   /albums(.:format)                           albums#create
       new_album GET    /albums/new(.:format)                       albums#new
      edit_album GET    /albums/:id/edit(.:format)                  albums#edit
           album GET    /albums/:id(.:format)                       albums#show
                 PUT    /albums/:id(.:format)                       albums#update
                 DELETE /albums/:id(.:format)                       albums#destroy
            root        /                                           users#index
           about        /about(.:format)                            home#about
            help        /help(.:format)                             home#help
         contact        /contact(.:format)                          home#contact

如果您需要更多文件，请告诉我。

4

1 回答 1

1

你的routes.rb文件应该是这样的（额外的end）：

Pholder::Application.routes.draw do

  resources :users do
    resources :albums do
      resources :photos
    end
  end

end

album.rb应该是这样的（:album_users不是:album_user）：

class Album < ActiveRecord::Base
  has_many :album_users
  has_many :users, :through => :album_users
  has_many :photos
end

user.rb应该是这样的（:album_users不是:album_user），您可以通过这种方式添加照片关系：

class User < ActiveRecord::Base
  has_many :album_users
  has_many :albums, :through => :album_users
  has_many :photos, :finder_sql =>  proc {"select * from photos inner join albums on albums.id = photos.album_id inner join album_users on album_users.album_id = albums.id where album_users.user_id = #{id}"}

  accepts_nested_attributes_for :albums
end

你应该看到new_user_album_photo你的routes.rb并像这样使用它：

new_user_album_photo_path(@user, @album)

您可以像这样在控制台中测试您的路线：

app.new_user_album_photo_path(User.first, Album.first)

它应该返回：

=> "/users/1/albums/1/photos/new"
于 2012-10-03T04:02:57.973 回答