「引数の数が間違って（1を与えられたが、予想0）」

Question

は、今、私は次のエラー取得せずに私の考案・作成したルート/users/editにナビゲートすることができませんでしだ：

ArgumentError - wrong number of arguments (given 1, expected 0): 
    app/controllers/application_controller.rb:15:in `authenticate_user!' 
    devise (4.3.0) app/controllers/devise/registrations_controller.rb:133:in `authenticate_scope!' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:413:in `block in make_lambda' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:178:in `block (2 levels) in halting_and_conditional' 
    actionpack (5.1.2) lib/abstract_controller/callbacks.rb:12:in `block (2 levels) in <module:Callbacks>' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:179:in `block in halting_and_conditional' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:507:in `block in invoke_before' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:507:in `each' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:507:in `invoke_before' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:130:in `run_callbacks' 
    actionpack (5.1.2) lib/abstract_controller/callbacks.rb:19:in `process_action' 
    actionpack (5.1.2) lib/action_controller/metal/rescue.rb:20:in `process_action' 
    actionpack (5.1.2) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action' 
    activesupport (5.1.2) lib/active_support/notifications.rb:166:in `block in instrument' 
    activesupport (5.1.2) lib/active_support/notifications/instrumenter.rb:21:in `instrument' 
    activesupport (5.1.2) lib/active_support/notifications.rb:166:in `instrument' 
    actionpack (5.1.2) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
    actionpack (5.1.2) lib/action_controller/metal/params_wrapper.rb:252:in `process_action' 
    activerecord (5.1.2) lib/active_record/railties/controller_runtime.rb:22:in `process_action' 
    actionpack (5.1.2) lib/abstract_controller/base.rb:124:in `process' 
    actionview (5.1.2) lib/action_view/rendering.rb:30:in `process' 
    actionpack (5.1.2) lib/action_controller/metal.rb:189:in `dispatch' 
    actionpack (5.1.2) lib/action_controller/metal.rb:253:in `dispatch' 
    actionpack (5.1.2) lib/action_dispatch/routing/route_set.rb:49:in `dispatch' 
    actionpack (5.1.2) lib/action_dispatch/routing/route_set.rb:31:in `serve' 
    actionpack (5.1.2) lib/action_dispatch/routing/mapper.rb:16:in `block in <class:Constraints>' 
    actionpack (5.1.2) lib/action_dispatch/routing/mapper.rb:46:in `serve' 
    actionpack (5.1.2) lib/action_dispatch/journey/router.rb:46:in `block in serve' 
    actionpack (5.1.2) lib/action_dispatch/journey/router.rb:33:in `each' 
    actionpack (5.1.2) lib/action_dispatch/journey/router.rb:33:in `serve' 
    actionpack (5.1.2) lib/action_dispatch/routing/route_set.rb:832: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 (2.0.3) lib/rack/etag.rb:25:in `call' 
    rack (2.0.3) lib/rack/conditional_get.rb:25:in `call' 
    rack (2.0.3) lib/rack/head.rb:12:in `call' 
    rack (2.0.3) lib/rack/session/abstract/id.rb:232:in `context' 
    rack (2.0.3) lib/rack/session/abstract/id.rb:226:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/cookies.rb:613:in `call' 
    activerecord (5.1.2) lib/active_record/migration.rb:556:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/callbacks.rb:26:in `block in call' 
    activesupport (5.1.2) lib/active_support/callbacks.rb:97:in `run_callbacks' 
    actionpack (5.1.2) lib/action_dispatch/middleware/callbacks.rb:24:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/executor.rb:12:in `call' 
    better_errors (2.1.1) lib/better_errors/middleware.rb:84:in `protected_app_call' 
    better_errors (2.1.1) lib/better_errors/middleware.rb:79:in `better_errors_call' 
    better_errors (2.1.1) lib/better_errors/middleware.rb:57:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/debug_exceptions.rb:59:in `call' 
    web-console (3.5.1) lib/web_console/middleware.rb:135:in `call_app' 
    web-console (3.5.1) lib/web_console/middleware.rb:28:in `block in call' 
    web-console (3.5.1) lib/web_console/middleware.rb:18:in `catch' 
    web-console (3.5.1) lib/web_console/middleware.rb:18:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call' 
    railties (5.1.2) lib/rails/rack/logger.rb:36:in `call_app' 
    railties (5.1.2) lib/rails/rack/logger.rb:24:in `block in call' 
    activesupport (5.1.2) lib/active_support/tagged_logging.rb:69:in `block in tagged' 
    activesupport (5.1.2) lib/active_support/tagged_logging.rb:26:in `tagged' 
    activesupport (5.1.2) lib/active_support/tagged_logging.rb:69:in `tagged' 
    railties (5.1.2) lib/rails/rack/logger.rb:24:in `call' 
    sprockets-rails (3.2.0) lib/sprockets/rails/quiet_assets.rb:13:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/remote_ip.rb:79:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/request_id.rb:25:in `call' 
    rack (2.0.3) lib/rack/method_override.rb:22:in `call' 
    rack (2.0.3) lib/rack/runtime.rb:22:in `call' 
    activesupport (5.1.2) lib/active_support/cache/strategy/local_cache_middleware.rb:27:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/executor.rb:12:in `call' 
    actionpack (5.1.2) lib/action_dispatch/middleware/static.rb:125:in `call' 
    rack (2.0.3) lib/rack/sendfile.rb:111:in `call' 
    railties (5.1.2) lib/rails/engine.rb:522:in `call' 
    puma (3.9.1) lib/puma/configuration.rb:224:in `call' 
    puma (3.9.1) lib/puma/server.rb:602:in `handle_request' 
    puma (3.9.1) lib/puma/server.rb:435:in `process_client' 
    puma (3.9.1) lib/puma/server.rb:299:in `block in run' 
    puma (3.9.1) lib/puma/thread_pool.rb:120:in `block in spawn_thread' 

を

エラーの原因となる方法はApplicationController:authenticate_user!です。ユーザーがどのページに移動する前にユーザーが認証されているかを確認します。私はまた、before_actionこのメソッドに私のすべてのコントローラの呼び出しを持っています。他のページがないときに私の/users/editページは、特に私にこの問題を与えている理由私は思ったんだけど何

class ApplicationController < ActionController::Base 
    protect_from_forgery with: :exception 
    before_action :configure_permitted_parameters, if: :devise_controller? 
    include Pundit 

    layout :layout_by_resource 

    protected 

    def configure_permitted_parameters 
    devise_parameter_sanitizer.permit(:sign_up, keys: [:name]) 
    devise_parameter_sanitizer.permit(:account_update, keys: [:name]) 
    end 

    ##################################### 
    # This is what's giving me my error # 
    ##################################### 
    def authenticate_user! 
    unless signed_in? 
     redirect_to login_path # halts request cycle 
    end 
    end 

    def layout_by_resource 
    if devise_controller? && resource_name == :user && action_name == 'new' 
     "empty_application" 
    else 
     "application" 
    end 
    end 

end 

です。

私のルートは、次のようになります。

class UsersController < ApplicationController 
    before_action :authenticate_user! 

    def index 
    @users = User.all 
    authorize User 
    end 

    def show 
    @user = User.find(params[:id]) 
    authorize @user 
    end 

    def update 
    @user = User.find(params[:id]) 
    authorize @user 
    if @user.update_attributes(secure_params) 
     redirect_to users_path, :notice => "User updated." 
    else 
     redirect_to users_path, :alert => "Unable to update user." 
    end 
    end 

    def destroy 
    user = User.find(params[:id]) 
    authorize user 
    user.destroy 
    redirect_to users_path, :notice => "User deleted." 
    end 

    private 

    def secure_params 
    params.require(:user).permit(:role) 
    end 

end 

など、私ののconfig/routes.rbを外観：

Rails.application.routes.draw do 
    root to: 'visitors#index' 
    devise_for :users 


    get "home/index" 
    get "home/minor" 
    root to: 'home#index' 


    devise_scope :user do 
    get '/sign-in' => "devise/sessions#new", :as => :login 
    end 

end 

    Prefix Verb URI Pattern     Controller#Action 
        root GET /       visitors#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 GET /users/sign_out(.:format)  devise/sessions#destroy 
     new_user_password GET /users/password/new(.:format) devise/passwords#new 
     edit_user_password GET /users/password/edit(.:format) devise/passwords#edit 
      user_password PATCH /users/password(.:format)  devise/passwords#update 
         PUT /users/password(.:format)  devise/passwords#update 
         POST /users/password(.:format)  devise/passwords#create 
cancel_user_registration GET /users/cancel(.:format)  devise/registrations#cancel 
    new_user_registration GET /users/sign_up(.:format)  devise/registrations#new 
    edit_user_registration GET /users/edit(.:format)   devise/registrations#edit 
     user_registration PATCH /users(.:format)    devise/registrations#update 
         PUT /users(.:format)    devise/registrations#update 
         DELETE /users(.:format)    devise/registrations#destroy 
         POST /users(.:format)    devise/registrations#create 
       home_index GET /home/index(.:format)   home#index 
       home_minor GET /home/minor(.:format)   home#minor 
         GET /       home#index 
        login GET /sign-in(.:format)    devise/sessions#new 
        page GET /pages/*id      high_voltage/pages#show 

マイUsersController.rbは次のようになります

私は何ですかApplicationController.authenticate_user!の方法では、/users/editルートに移動できず、エラーが発生しました。wrong number of arguments (given 1, expected 0)？

Answer 1

問題はauthenticate_user!はそれで一つの引数を取りますが、default implementation（authenticate_#{mapping}法）であるということです

あなたはそれを上書きするつもりならこのように、定義が同じでなければなりません：

ためだ

def authenticate_user!(opts = {}) 

どこかで引数を指定してメソッドを呼び出すことができます

ところで、すでに実装されているので、あなたはそれを上書きする必要はないと思います。what you expect it to do