undefined方法`index_path'使用关系

Question

我使用device和carrierwave gem得到以下错误：

undefined method `user_media_index_path'
.Showing .../user_medias/new.html.erb where line #3 raised:

我在user_media模型中添加了user_id的索引

我已经为单个模型成功实现了文件上传，但我不知道如何使用单独的模块进行文件上传。

new.html

form_for @media, :html =>{:multipart =>true} do |f|
  Upload an Image  f.file_field :image
  f.submit 
end

这是使用设备gem生成的用户模型：

user.rb

class User < ActiveRecord::Base

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  attr_accessible :email, :password, :password_confirmation, :remember_me

  has_many :user_media, dependent: :destroy

end

它的模型用于存储用户媒体，如图像等，我现在只使用它来处理图像 但是为了将来添加更多类型的媒体，我创建了这个user_media模型

user_media.rb

class UserMedia < ActiveRecord::Base
  attr_accessible :anudio, :image, :video
  belongs_to :user

  mount_uploader :image, MediaUploader
end

当要求上传图像的创建操作时，它会被重定向到

user_medias_controller

class UserMediasController < ApplicationController
  def new
    @media = UserMedia.new
  end

  def create
    @media=current_user.user_media.build(params[:media])

    if @media.save
      render'index'
    else
      render'new'
    end
  end
end

路由详情如下：

的routes.rb

Projectx::Application.routes.draw do
  get "dashboard/index"
  resources :dashboard, :UserMedias
  get "home/index"
  devise_for :users

  root :to => 'home#index'

  match 'uploder' =>'UserMedias#new'

在添加@peter

建议的资源后，

rake路由输出这一切

         dashboard_index GET    /dashboard/index(.:format)      dashboard#index
                         GET    /dashboard(.:format)            dashboard#index
                         POST   /dashboard(.:format)            dashboard#create
           new_dashboard GET    /dashboard/new(.:format)        dashboard#new
          edit_dashboard GET    /dashboard/:id/edit(.:format)   dashboard#edit
               dashboard GET    /dashboard/:id(.:format)        dashboard#show
                         PUT    /dashboard/:id(.:format)        dashboard#update
                         DELETE /dashboard/:id(.:format)        dashboard#destroy
             user_medias GET    /user_medias(.:format)          user_medias#index
                         POST   /user_medias(.:format)          user_medias#create
          new_user_media GET    /user_medias/new(.:format)      user_medias#new
         edit_user_media GET    /user_medias/:id/edit(.:format) user_medias#edit
              user_media GET    /user_medias/:id(.:format)      user_medias#show
                         PUT    /user_medias/:id(.:format)      user_medias#update
                         DELETE /user_medias/:id(.:format)      user_medias#destroy
              home_index GET    /home/index(.:format)           home#index
        new_user_session GET    /users/sign_in(.:format)        devise/sessions#new
            user_session POST   /users/sign_in(.:format)        devise/sessions#create
    destroy_user_session DELETE /users/sign_out(.:format)       devise/sessions#destroy
           user_password POST   /users/password(.:format)       devise/passwords#create
       new_user_password GET    /users/password/new(.:format)   devise/passwords#new
      edit_user_password GET    /users/password/edit(.:format)  devise/passwords#edit
                         PUT    /users/password(.:format)       devise/passwords#update
cancel_user_registration GET    /users/cancel(.:format)         devise/registrations#cancel
       user_registration POST   /users(.:format)                devise/registrations#create
   new_user_registration GET    /users/sign_up(.:format)        devise/registrations#new
  edit_user_registration GET    /users/edit(.:format)           devise/registrations#edit
                         PUT    /users(.:format)                devise/registrations#update
                         DELETE /users(.:format)                devise/registrations#destroy
                    root        /                               home#index
                 uploder        /uploder(.:format)              user_medias#new

Answer 1

错误指向路由文件中缺少的路由。将此添加到您的路线

resources :user_medias