我正在尝试将自定义照片模型添加到狂欢商店管理面板中，当我尝试转到该页面时，我收到错误：未初始化的常量管理员。我有一种感觉，它与我如何命名我的文件或我把它们放在哪里有关。这就是我到目前为止所做的：
路线
namespace :admin do
resources :photos
end
我的观看文件全部位于：app / views / spree / admin / photos
应用程序/控制器/管理/ photos_controller.rb
module Admin
class PhotosController < Admin::BaseController
before_action :set_photo, only: [:show, :edit, :update, :destroy]
# GET /photos
# GET /photos.json
def index
@photos = Photo.all
end
# GET /photos/1
# GET /photos/1.json
def show
end
# GET /photos/new
def new
@photo = Photo.new
end
# GET /photos/1/edit
def edit
end
# POST /photos
# POST /photos.json
def create
@photo = Photo.new(photo_params)
respond_to do |format|
if @photo.save
format.html { redirect_to @photo, notice: 'Photo was successfully created.' }
format.json { render :show, status: :created, location: @photo }
else
format.html { render :new }
format.json { render json: @photo.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /photos/1
# PATCH/PUT /photos/1.json
def update
respond_to do |format|
if @photo.update(photo_params)
format.html { redirect_to @photo, notice: 'Photo was successfully updated.' }
format.json { render :show, status: :ok, location: @photo }
else
format.html { render :edit }
format.json { render json: @photo.errors, status: :unprocessable_entity }
end
end
end
# DELETE /photos/1
# DELETE /photos/1.json
def destroy
@photo.destroy
respond_to do |format|
format.html { redirect_to photos_url, notice: 'Photo was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_photo
@photo = Photo.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def photo_params
params.require(:photo).permit(:image, :book_id)
end
end
end
以下是完整错误：
Started GET "/admin/photos" for 207.93.212.56 at 2017-04-13 19:18:41 +0000
Cannot render console from 207.93.212.56! Allowed networks: 127.0.0.1, ::1, 127.0.0.0/127.255.255.255
ActionController::RoutingError (uninitialized constant Admin):
activesupport (4.2.6) lib/active_support/inflector/methods.rb:261:in `const_get'
activesupport (4.2.6) lib/active_support/inflector/methods.rb:261:in `block in constantize'
activesupport (4.2.6) lib/active_support/inflector/methods.rb:259:in `each'
activesupport (4.2.6) lib/active_support/inflector/methods.rb:259:in `inject'
activesupport (4.2.6) lib/active_support/inflector/methods.rb:259:in `constantize'
actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:70:in `controller_reference'
actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:60:in `controller'
actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:39:in `serve'
actionpack (4.2.6) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.6) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.6) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:817:in `call'
warden (1.2.7) lib/warden/manager.rb:36:in `block in call'
warden (1.2.7) lib/warden/manager.rb:35:in `catch'
warden (1.2.7) lib/warden/manager.rb:35:in `call'
rack (1.6.5) lib/rack/etag.rb:24:in `call'
rack (1.6.5) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.5) lib/rack/head.rb:13:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.5) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.5) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.6) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.6) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
activerecord (4.2.6) lib/active_record/migration.rb:377:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.6) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
activesupport (4.2.6) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
activesupport (4.2.6) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.6) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
web-console (2.3.0) lib/web_console/middleware.rb:20:in `block in call'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `catch'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.6) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.6) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.6) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.6) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.6) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.6) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.5) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.5) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.6) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.5) lib/rack/lock.rb:17:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/static.rb:120:in `call'
rack (1.6.5) lib/rack/sendfile.rb:113:in `call'
railties (4.2.6) lib/rails/engine.rb:518:in `call'
railties (4.2.6) lib/rails/application.rb:165:in `call'
rack (1.6.5) lib/rack/lock.rb:17:in `call'
rack (1.6.5) lib/rack/content_length.rb:15:in `call'
rack (1.6.5) lib/rack/handler/webrick.rb:88:in `service'
/usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
/usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
/usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'
答案 0 :(得分：1)
好吧，你需要使用正确的模块范围。这段代码片段可以帮助你。
module Spree
module Admin
class PhotosController < BaseController
before_action :set_photo, only: [:show, :edit, :update, :destroy]
# GET /photos
# GET /photos.json
def index
@photos = Photo.all
end
# GET /photos/1
# GET /photos/1.json
def show
end
# GET /photos/new
def new
@photo = Photo.new
end
# GET /photos/1/edit
def edit
end
# POST /photos
# POST /photos.json
def create
@photo = Photo.new(photo_params)
respond_to do |format|
if @photo.save
format.html { redirect_to @photo, notice: 'Photo was successfully created.' }
format.json { render :show, status: :created, location: @photo }
else
format.html { render :new }
format.json { render json: @photo.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /photos/1
# PATCH/PUT /photos/1.json
def update
respond_to do |format|
if @photo.update(photo_params)
format.html { redirect_to @photo, notice: 'Photo was successfully updated.' }
format.json { render :show, status: :ok, location: @photo }
else
format.html { render :edit }
format.json { render json: @photo.errors, status: :unprocessable_entity }
end
end
end
# DELETE /photos/1
# DELETE /photos/1.json
def destroy
@photo.destroy
respond_to do |format|
format.html { redirect_to photos_url, notice: 'Photo was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_photo
@photo = Photo.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def photo_params
params.require(:photo).permit(:image, :book_id)
end
end
end
end
end
此外，我建议您从ResourceController而不是BaseController继承您的课程。通过这样做，您可以节省一些LOC，这将非常有用。
答案 1 :(得分：0)
您需要使用：
class PhotosController < BaseController
由于您已经在admin命名空间内