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devise
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deviseでのユーザーログインで認証失敗の際エラーメッセージを表示させたい。
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### deviseでのユーザーログインで認証失敗の際エラーメッセージを表示さ。
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### deviseでのユーザーログインで認証失敗の際エラーメッセージを表示させたい。
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vendor/bundle/ruby/2.5.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/debug_exceptions.rb:61:in `call'
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```
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sessions_controller.rb
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```
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# frozen_string_literal: true
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class Users::SessionsController < Devise::SessionsController
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before_action :alert_account, only: :destroy, raise: false
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before_action :reset_session_before_login, only: :create
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protect_from_forgery :except => [:create]
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# before_action :configure_sign_in_params, only: [:create]
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# GET /resource/sign_in
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# def new
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# super
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# end
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# POST /resource/sign_in
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# def create
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# super
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# end
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# DELETE /resource/sign_out
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# def destroy
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# super
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# end
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# protected
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# If you have extra params to permit, append them to the sanitizer.
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# def configure_sign_in_params
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# devise_parameter_sanitizer.permit(:sign_in, keys: [:attribute])
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# end
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private
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def reset_session_before_login
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user_return_to = session[:user_return_to]
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reset_session
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session[:user_return_to] = user_return_to if user_return_to
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end
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end
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```
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application_controller.rb
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```
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class ApplicationController < ActionController::Base
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protect_from_forgery with: :exception
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before_action :configure_permitted_parameters, if: :devise_controller?
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before_action :configure_account_update_params, if: :devise_controller?
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before_action :set_host
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before_action :store_current_location, unless: :devise_controller?
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def alert_account
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unless current_user
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flash[:alert] = "アカウントの作成もしくはログインしてください"
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redirect_to new_user_session_path
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end
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end
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def configure_permitted_parameters
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devise_parameter_sanitizer.permit(:sign_up, keys: [:username, :tall, :age, :gendar, :active_level, :recom_calorie, :image, :password, :password_confirmation, :email])
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end
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def configure_account_update_params
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devise_parameter_sanitizer.permit(:account_update, keys: [:username,:tall, :age, :gendar, :active_level, :recom_calorie, :image])
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end
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def require_admin
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redirect_to root_path unless current_user.admin?
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end
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def set_host
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Rails.application.routes.default_url_options[:host] = request.host_with_port
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end
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def user_recom?
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unless (current_user&.recom_calorie) || session[:recom_calorie]
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flash[:notice] = "先に推奨カロリーを計算しましょう。"
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unless current_user
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redirect_to new_scalcalo_path
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else
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redirect_to edit_calcalo_path(current_user)
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end
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end
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end
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def store_current_location
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return if current_user
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store_location_for(:user, request.url)
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end
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end
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```
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