railsでログインできない

railsでアプリケーションを作っているのでうすが、ログインすることができません。beybugでデータの中身を見たときは、

def
after_sign_in_path_for(resource)
case resource
when User
byebug
public_users_mypage_path
when Admin
admins_users_path
end
end

のコードが機能していませんでした。
どう解決すれば良いかアドバイスいただきたいです。

application.controller.rb

class ApplicationController < ActionController::Base
 before_action :configure_permitted_parameters, if: :devise_controller?

def after_sign_in_path_for(resource)
  case resource
  when User
    byebug
    public_users_mypage_path
  when Admin
    admins_users_path
  end
end




  def after_sign_out_path_for(resource_or_scope)
    if resource_or_scope == :admin_admin_user
      new_admin_user_registaration_path
    else
      root_path
    end
  end

  protected

  def configure_permitted_parameters
    devise_parameter_sanitizer.permit(:sign_up, keys: [:first_name, :last_name, :first_name_kana, :last_name_kana, :phone_number, :is_active ,:image,:instagram_id,
    :introduction])
  end

end

routes.rb


Rails.application.routes.draw do

  root :to => 'public/homes#top'

devise_for :users, controllers: {
  sessions: 'user/sessions',
  registrations: 'user/registrations'
}


namespace :public, path: "" do
  get 'users/mypage' => 'users#mypage'
  get'posts_all' => 'posts#posts_all'
  post'posts_all' => 'posts#posts_all'
  get 'search_all' => 'users#search_all'
  post 'search_all' => 'users#search_all'
  resources :users, only: [:edit, :update ,:index , :show] do
    resources :posts, only: [:index,:create,:show,:edit,:update, :destroy] do
    delete 'post_item_destroy'
    post 'post_item_create'
    resources :post_items, only: [:destroy, :index]
    resources :likes, only: [:create, :destroy, :index]
    resources :comments, only: [:create, :destroy]
  end
   get 'unsubscribe/:id' => 'users#unsubscribe', as: 'confirm_unsubscribe'
    patch 'withdraw/:id' => 'users#withdraw', as: 'withdraw_user'
    put 'withdraw/:id' => 'users#withdraw'
    get 'users/tags' => 'posts#post_tags'
    resource :relationships, only: [:create, :destroy]
    get 'followings' => 'relationships#followings', as: 'followings'
    get 'followers' => 'relationships#followers', as: 'followers'
    resource :favorites, only: [:create, :destroy]
  end
  resources :messages, only: [:create]
  resources :rooms, only: [:create,:show, :index]
  end

  devise_for :admins, controllers: {
  sessions: 'user/sessions',
  registrations: 'user/registrations'
}




namespace :admins do
  resources :users
  resources :posts
  patch 'post_item_update' => 'posts#post_item_update'
  resources :tags, only: [:index]
end

end

回答よろしくお願いします