はじめに

Laravel8で一般ログインと管理ログインを分けるために、マルチ認証を実装した方法を記載します。

概要

ユーザーは、

一般ユーザー側を users
管理者側を admin_users

URLは、

一般ユーザー側(users)
ログイン画面 /login
ホーム画面 /home
管理側(admin_users)
ログイン画面 /admin/login
ホーム画面 /admin/home

として2つの管理画面を作ることを想定して実装します。

前提

composerがインストールされている状態であること
Laravelプロジェクトがインストール済みであること
laravel/uiが導入済みである事

※laravel/uiのインストール方法は以下を参照
Laravel8 (laravel/ui)でのLogin機能の実装方法メモ

手順

1 管理者用のモデルとマイグレーションファイルを作成する

-mオプションをつけて、以下コマンドを打つ事で、モデルとマイグレーションファイルが一気に作成できます。

php artisan make:model AdminUser -m

以下ファイルが作成されます。

app/Models/AdminUser.php(モデルファイル)
database/migrations/日付_create_admin_users_table.php(マイグレーションファイル)

※オプションに関する詳細は以下を参照
Laravel 8.x Eloquentの準備

2 app/Models/User.phpの内容をコピーして貼り付ける

既にUser.php (一般ユーザー側のモデルファイル)が生成されているので、

中身をコピーしつつ、 class名を AdminUser に変えておきます。

app/Models/AdminUser.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Foundation\Auth\User as Authenticatable;

class AdminUser extends Authenticatable         // class名をuserからAdminUserに変更
{
    use HasFactory;


    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'name',
        'email',
        'password',
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'password',
        'remember_token',
    ];

    /**
     * The attributes that should be cast to native types.
     *
     * @var array
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
    ];
}

3 作成したマイグレーションファイルもコピーする

database/migrations/2014_10_12_000000_create_users_table.php(マイグレーションファイル)の内容をコピーしてテーブル名を変更します。

database/migrations/日付_create_admin_users_table.php

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreateAdminUsersTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {   
        // テーブル名をuserからadmin_usersに変更
        Schema::create('admin_users', function (Blueprint $table) {         
            $table->id();
            $table->string('name');
            $table->string('email')->unique();
            $table->timestamp('email_verified_at')->nullable();
            $table->string('password');
            $table->rememberToken();
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {   
        // テーブル名をuserからadmin_usersに変更
        Schema::dropIfExists('admin_users');
    }
}

4 マイグレーションを実行する

マイグレーションを実行して管理者用のテーブルを作成する

$ php artisan migrate

5 認証系ファイルに管理者(admin_users)側の設定を行う

config/auth.phpに管理者(admin_users)側の設定を追加する。

まず始めに今回作成するファイルの全体のコードです。

config/auth.php

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Authentication Defaults
    |--------------------------------------------------------------------------
    |
    | This option controls the default authentication "guard" and password
    | reset options for your application. You may change these defaults
    | as required, but they're a perfect start for most applications.
    |
    */

    'defaults' => [
        'guard' => 'users',         // webからusersに変更
        'passwords' => 'users',
    ],

    /*
    |--------------------------------------------------------------------------
    | Authentication Guards
    |--------------------------------------------------------------------------
    |
    | Next, you may define every authentication guard for your application.
    | Of course, a great default configuration has been defined for you
    | here which uses session storage and the Eloquent user provider.
    |
    | All authentication drivers have a user provider. This defines how the
    | users are actually retrieved out of your database or other storage
    | mechanisms used by this application to persist your user's data.
    |
    | Supported: "session"
    |
    */

    'guards' => [
        'web' => [
            'driver' => 'session',
            'provider' => 'users',
        ],

        'users' => [               // usersを追加
            'driver' => 'session',
            'provider' => 'users',
        ],

        'admin_users' => [               // admin_usersを追加
            'driver' => 'session',
            'provider' => 'admin_users',
        ],

        'api' => [               // apiを追加
            'driver' => 'token',
            'provider' => 'users',
            'hash' => false,
        ],

    ],

    /*
    |--------------------------------------------------------------------------
    | User Providers
    |--------------------------------------------------------------------------
    |
    | All authentication drivers have a user provider. This defines how the
    | users are actually retrieved out of your database or other storage
    | mechanisms used by this application to persist your user's data.
    |
    | If you have multiple user tables or models you may configure multiple
    | sources which represent each model / table. These sources may then
    | be assigned to any extra authentication guards you have defined.
    |
    | Supported: "database", "eloquent"
    |
    */

    'providers' => [
        'users' => [
            'driver' => 'eloquent',
            'model' => App\Models\User::class,
        ],
        'admin_users' => [               // admin_usersを追加
            'driver' => 'eloquent',
            'model' => App\Models\AdminUser::class,
        ],
        // 'users' => [
        //     'driver' => 'database',
        //     'table' => 'users',
        // ],
    ],

    /*
    |--------------------------------------------------------------------------
    | Resetting Passwords
    |--------------------------------------------------------------------------
    |
    | You may specify multiple password reset configurations if you have more
    | than one user table or model in the application and you want to have
    | separate password reset settings based on the specific user types.
    |
    | The expire time is the number of minutes that each reset token will be
    | considered valid. This security feature keeps tokens short-lived so
    | they have less time to be guessed. You may change this as needed.
    |
    */

    'passwords' => [
        'users' => [
            'provider' => 'users',
            'table' => 'password_resets',
            'expire' => 60,
            'throttle' => 60,
        ],
        'admin_users' => [               // admin_usersを追加
            'provider' => 'admin_users',
            'table' => 'admin_password_resets',
            'expire' => 60,
            'throttle' => 60,
        ],
    ],

    /*
    |--------------------------------------------------------------------------
    | Password Confirmation Timeout
    |--------------------------------------------------------------------------
    |
    | Here you may define the amount of seconds before a password confirmation
    | times out and the user is prompted to re-enter their password via the
    | confirmation screen. By default, the timeout lasts for three hours.
    |
    */

    'password_timeout' => 10800,

];

「ガード」と「プロバイダ」について

Laravelの認証機構は、「ガード」と「プロバイダ」で構成されています。
ガード:
リクエストごとにユーザーを認証する方法を定義します。たとえば、Laravelには、セッションストレージとクッキーを使用して状態を維持する「セッション」ガードを用意しています。
プロバイダ:
永続ストレージからユーザーを取得する方法を定義します。LaravelはEloquentとデータベースクエリビルダを使用してユーザーを取得するためのサポートを用意しています。ただし、アプリケーションの必要性に応じて、追加のプロバイダを自由に定義できます。

dafaultをwebからuserに変更することで、

認証 8.x Laravel

6 管理者用のコントローラーの作成

現在のapp/Http/Controllers/Authとpp/Http/Controllers/HomeController.phpをまるごとコピーして、新規ディレクトリのapp/Http/Controllers/Admin/Authに移動してください。

（ユーザー用のものをそのままコピペ）

そのあとに、少々変更を加えていきます。

app/Http/Controllers/Admin/Auth/ConfirmPasswordController.php

<?php

// App\Http\Controllers\AuthからApp\Http\Controllers\Admin\Authに変更
namespace App\Http\Controllers\Admin\Auth;               

// App\Http\ControllersからApp\Http\Controllers\Controllerに変更
use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use Illuminate\Foundation\Auth\ConfirmsPasswords;

class ConfirmPasswordController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Confirm Password Controller
    |--------------------------------------------------------------------------
    |
    | This controller is responsible for handling password confirmations and
    | uses a simple trait to include the behavior. You're free to explore
    | this trait and override any functions that require customization.
    |
    */
    use ConfirmsPasswords;

    /**
     * Where to redirect users when the intended url fails.
     *
     * @var string
     */
    protected $redirectTo = RouteServiceProvider::HOME;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('auth');
    }
}

app/Http/Controllers/Admin/Auth/ForgotPasswordController.php

<?php

// App\Http\Controllers\AuthからApp\Http\Controllers\Admin\Authに変更
namespace App\Http\Controllers\Admin\Auth;

// App\Http\ControllersからApp\Http\Controllers\Controllerに変更
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\SendsPasswordResetEmails;

class ForgotPasswordController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Password Reset Controller
    |--------------------------------------------------------------------------
    |
    | This controller is responsible for handling password reset emails and
    | includes a trait which assists in sending these notifications from
    | your application to your users. Feel free to explore this trait.
    |
    */
    use SendsPasswordResetEmails;
}

app/Http/Controllers/Admin/Auth/LoginController.php

<?php

// App\Http\Controllers\AuthからApp\Http\Controllers\Admin\Authに変更
namespace App\Http\Controllers\Admin\Auth;

// App\Http\ControllersからApp\Http\Controllers\Controllerに変更
use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use Illuminate\Foundation\Auth\AuthenticatesUsers;

class LoginController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles authenticating users for the application and
    | redirecting them to your home screen. The controller uses a trait
    | to conveniently provide its functionality to your applications.
    |
    */
    use AuthenticatesUsers;

    /**
     * Where to redirect users after login.
     *
     * @var string
     */
    protected $redirectTo = RouteServiceProvider::HOME;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest')->except('logout');
    }
}

app/Http/Controllers/Admin/Auth/RegisterController.php

<?php

// App\Http\Controllers\AuthからApp\Http\Controllers\Admin\Authに変更
namespace App\Http\Controllers\Admin\Auth;

// App\Http\ControllersからApp\Http\Controllers\Controllerに変更
use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use App\Models\AdminUser;  // App\Models\UserからApp\Models\AdminUserに変更
use Illuminate\Foundation\Auth\RegistersUsers;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;

class RegisterController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Register Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users as well as their
    | validation and creation. By default this controller uses a trait to
    | provide this functionality without requiring any additional code.
    |
    */
    use RegistersUsers;

    /**
     * Where to redirect users after registration.
     *
     * @var string
     */
    protected $redirectTo = RouteServiceProvider::HOME;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest');
    }

    /**
     * Get a validator for an incoming registration request.
     *
     * @param array $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make(
            $data,
            [
                'name' => ['required', 'string', 'max:255'],
                'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
                'password' => ['required', 'string', 'min:3', 'confirmed']
            ]
        );
    }

    /**
     * Create a new user instance after a valid registration.
     *
     * @param array $data
     * @return \App\Models\AdminUser
     */
    protected function create(array $data)
    {
        return AdminUser::create(  //UserからAdminUserに変更
            [
                'name' => $data['name'],
                'email' => $data['email'],
                'password' => Hash::make($data['password'])
            ]
        );
    }
}

app/Http/Controllers/Admin/Auth/ResetPasswordController.php

<?php

// App\Http\Controllers\AuthからApp\Http\Controllers\Admin\Authに変更
namespace App\Http\Controllers\Admin\Auth;

// App\Http\ControllersからApp\Http\Controllers\Controllerに変更
use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use Illuminate\Foundation\Auth\ResetsPasswords;

class ResetPasswordController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Password Reset Controller
    |--------------------------------------------------------------------------
    |
    | This controller is responsible for handling password reset requests
    | and uses a simple trait to include this behavior. You're free to
    | explore this trait and override any methods you wish to tweak.
    |
    */
    use ResetsPasswords;

    /**
     * Where to redirect users after resetting their password.
     *
     * @var string
     */
    protected $redirectTo = RouteServiceProvider::HOME;
}

app/Http/Controllers/Admin/Auth/VerificationController.php

<?php

// App\Http\Controllers\AuthからApp\Http\Controllers\Admin\Authに変更
namespace App\Http\Controllers\Admin\Auth;

// App\Http\ControllersからApp\Http\Controllers\Controllerに変更
use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use Illuminate\Foundation\Auth\VerifiesEmails;

class VerificationController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Email Verification Controller
    |--------------------------------------------------------------------------
    |
    | This controller is responsible for handling email verification for any
    | user that recently registered with the application. Emails may also
    | be re-sent if the user didn't receive the original email message.
    |
    */
    use VerifiesEmails;

    /**
     * Where to redirect users after verification.
     *
     * @var string
     */
    protected $redirectTo = RouteServiceProvider::HOME;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('auth');
        $this->middleware('signed')->only('verify');
        $this->middleware('throttle:6,1')->only('verify', 'resend');
    }
}

app/Http/Controllers/Admin/HomeController.php

<?php
// App\Http\ControllersからApp\Http\Controllers\Adminに変更
namespace App\Http\Controllers\Admin;

// App\Http\ControllersからApp\Http\Controllers\Controllerに変更
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;

class HomeController extends Controller
{
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        //authからauth:admin_usersに変更
        $this->middleware('auth:admin_users');
    }

    /**
     * Show the application dashboard.
     *
     * @return \Illuminate\Contracts\Support\Renderable
     */
    public function index()
    {
        //homeからadmin.homeに変更
        return view('admin.home');
    }
}

7 ビューファイルの作成

管理者用のviewも、コントローラーと同様に新規のディレクトリを切って作成していきます。

現在の「resources/views/auth」と「resources/views/home.blade.php」をまるごとコピーして、新規ディレクトリの「resources/views/admin」に移動してください。

以下のファイルが揃っていればOKです。

resources/views/admin/auth/login.blade.php
resources/views/admin/auth/passwords/confirm.blade.php
resources/views/admin/auth/passwords/email.blade.php
resources/views/admin/auth/passwords/reset.blade.php
resources/views/admin/auth/register.blade.php
resources/views/admin/auth/verify.blade.php
resources/views/admin/home.blade.php

resources/views/admin/auth/login.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Login') }}</div>

                <div class="card-body">
                    <form method="POST" action="{{ route('admin.login') }}">
                        @csrf

                        <div class="row mb-3">
                            <label for="email" class="col-md-4 col-form-label text-md-end">{{ __('Email Address') }}</label>

                            <div class="col-md-6">
                                <input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ old('email') }}" required autocomplete="email" autofocus>

                                @error('email')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <label for="password" class="col-md-4 col-form-label text-md-end">{{ __('Password') }}</label>

                            <div class="col-md-6">
                                <input id="password" type="password" class="form-control @error('password') is-invalid @enderror" name="password" required autocomplete="current-password">

                                @error('password')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <div class="col-md-6 offset-md-4">
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="remember" id="remember" {{ old('remember') ? 'checked' : '' }}>

                                    <label class="form-check-label" for="remember">
                                        {{ __('Remember Me') }}
                                    </label>
                                </div>
                            </div>
                        </div>

                        <div class="row mb-0">
                            <div class="col-md-8 offset-md-4">
                                <button type="submit" class="btn btn-primary">
                                    {{ __('Login') }}
                                </button>

                                @if (Route::has('password.request'))
                                    <a class="btn btn-link" href="{{ route('admin.password.request') }}">
                                        {{ __('Forgot Your Password?') }}
                                    </a>
                                @endif
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

resources/views/admin/auth/passwords/confirm.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Confirm Password') }}</div>

                <div class="card-body">
                    {{ __('Please confirm your password before continuing.') }}

                    <form method="POST" action="{{ route('admin.password.confirm') }}">
                        @csrf

                        <div class="row mb-3">
                            <label for="password" class="col-md-4 col-form-label text-md-end">{{ __('Password') }}</label>

                            <div class="col-md-6">
                                <input id="password" type="password" class="form-control @error('password') is-invalid @enderror" name="password" required autocomplete="current-password">

                                @error('password')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-0">
                            <div class="col-md-8 offset-md-4">
                                <button type="submit" class="btn btn-primary">
                                    {{ __('Confirm Password') }}
                                </button>

                                @if (Route::has('password.request'))
                                    <a class="btn btn-link" href="{{ route('admin.password.request') }}">
                                        {{ __('Forgot Your Password?') }}
                                    </a>
                                @endif
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

resources/views/admin/auth/passwords/email.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Reset Password') }}</div>

                <div class="card-body">
                    @if (session('status'))
                        <div class="alert alert-success" role="alert">
                            {{ session('status') }}
                        </div>
                    @endif

                    <form method="POST" action="{{ route('admin.password.email') }}">
                        @csrf

                        <div class="row mb-3">
                            <label for="email" class="col-md-4 col-form-label text-md-end">{{ __('Email Address') }}</label>

                            <div class="col-md-6">
                                <input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ old('email') }}" required autocomplete="email" autofocus>

                                @error('email')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-0">
                            <div class="col-md-6 offset-md-4">
                                <button type="submit" class="btn btn-primary">
                                    {{ __('Send Password Reset Link') }}
                                </button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

resources/views/admin/auth/passwords/reset.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Reset Password') }}</div>

                <div class="card-body">
                    <form method="POST" action="{{ route('admin.password.update') }}">
                        @csrf

                        <input type="hidden" name="token" value="{{ $token }}">

                        <div class="row mb-3">
                            <label for="email" class="col-md-4 col-form-label text-md-end">{{ __('Email Address') }}</label>

                            <div class="col-md-6">
                                <input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ $email ?? old('email') }}" required autocomplete="email" autofocus>

                                @error('email')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <label for="password" class="col-md-4 col-form-label text-md-end">{{ __('Password') }}</label>

                            <div class="col-md-6">
                                <input id="password" type="password" class="form-control @error('password') is-invalid @enderror" name="password" required autocomplete="new-password">

                                @error('password')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <label for="password-confirm" class="col-md-4 col-form-label text-md-end">{{ __('Confirm Password') }}</label>

                            <div class="col-md-6">
                                <input id="password-confirm" type="password" class="form-control" name="password_confirmation" required autocomplete="new-password">
                            </div>
                        </div>

                        <div class="row mb-0">
                            <div class="col-md-6 offset-md-4">
                                <button type="submit" class="btn btn-primary">
                                    {{ __('Reset Password') }}
                                </button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

resources/views/admin/auth/passwords/register.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Register') }}</div>

                <div class="card-body">
                    <form method="POST" action="{{ route('admin.register') }}">
                        @csrf

                        <div class="row mb-3">
                            <label for="name" class="col-md-4 col-form-label text-md-end">{{ __('Name') }}</label>

                            <div class="col-md-6">
                                <input id="name" type="text" class="form-control @error('name') is-invalid @enderror" name="name" value="{{ old('name') }}" required autocomplete="name" autofocus>

                                @error('name')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <label for="email" class="col-md-4 col-form-label text-md-end">{{ __('Email Address') }}</label>

                            <div class="col-md-6">
                                <input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ old('email') }}" required autocomplete="email">

                                @error('email')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <label for="password" class="col-md-4 col-form-label text-md-end">{{ __('Password') }}</label>

                            <div class="col-md-6">
                                <input id="password" type="password" class="form-control @error('password') is-invalid @enderror" name="password" required autocomplete="new-password">

                                @error('password')
                                    <span class="invalid-feedback" role="alert">
                                        <strong>{{ $message }}</strong>
                                    </span>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <label for="password-confirm" class="col-md-4 col-form-label text-md-end">{{ __('Confirm Password') }}</label>

                            <div class="col-md-6">
                                <input id="password-confirm" type="password" class="form-control" name="password_confirmation" required autocomplete="new-password">
                            </div>
                        </div>

                        <div class="row mb-0">
                            <div class="col-md-6 offset-md-4">
                                <button type="submit" class="btn btn-primary">
                                    {{ __('Register') }}
                                </button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

resources/views/admin/auth/passwords/verify.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Verify Your Email Address') }}</div>

                <div class="card-body">
                    @if (session('resent'))
                        <div class="alert alert-success" role="alert">
                            {{ __('A fresh verification link has been sent to your email address.') }}
                        </div>
                    @endif

                    {{ __('Before proceeding, please check your email for a verification link.') }}
                    {{ __('If you did not receive the email') }},
                    <form class="d-inline" method="POST" action="{{ route('admin.verification.resend') }}">
                        @csrf
                        <button type="submit" class="btn btn-link p-0 m-0 align-baseline">{{ __('click here to request another') }}</button>.
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

resources/views/admin/home.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">{{ __('Dashboard') }}</div>

                <div class="card-body">
                    @if (session('status'))
                        <div class="alert alert-success" role="alert">
                            {{ session('status') }}
                        </div>
                    @endif

                    {{ __('You are logged in!') }}
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

8 管理者用のルーティング設定

1 管理者用のルーティング設定としてadmin.phpを作成します。

routes/admin.php

<?php

use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

//管理者用のルーティング
Route::prefix('admin')->namespace('admin')->name('admin.')->group(function () {
    Auth::routes();
    Route::get('/home', 'HomeController@index')->name('admin_home');
});

2 app/Providers/RouteServiceProvider.php を編集
admin.phpで設定したルーティングの内容を反映できるように設定します。
Laravelのルートは、routesディレクトリにあるルートファイルで定義しますが、App\Providers\RouteServiceProviderにより、自動的に読み込まれます。

app/Providers/RouteServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Cache\RateLimiting\Limit;
use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\RateLimiter;
use Illuminate\Support\Facades\Route;

class RouteServiceProvider extends ServiceProvider
{
    /**
     * The path to the "home" route for your application.
     *
     * This is used by Laravel authentication to redirect users after login.
     *
     * @var string
     */
    public const HOME = '/';

    /**
     * The controller namespace for the application.
     *
     * When present, controller route declarations will automatically be prefixed with this namespace.
     *
     * @var string|null
     */
     protected $namespace = 'App\Http\Controllers';   //コメントアウトを外して修正

    /**
     * Define your route model bindings, pattern filters, etc.
     *
     * @return void
     */
    public function boot()
    {
        $this->configureRateLimiting();

        $this->routes(
            function () {
                Route::prefix('api')
                    ->middleware('api')
                    ->namespace($this->namespace)
                    ->group(base_path('routes/api.php'));

                Route::middleware('web')
                    ->namespace($this->namespace)
                    ->group(base_path('routes/web.php'));
                Route::middleware('web')               // routes/admin.phpを追加
                    ->namespace($this->namespace)
                    ->group(base_path('routes/admin.php'));
            }
        );
    }

    /**
     * Configure the rate limiters for the application.
     *
     * @return void
     */
    protected function configureRateLimiting()
    {
        RateLimiter::for(
            'api',
            function (Request $request) {
                return Limit::perMinute(60)->by(optional($request->user())->id ?: $request->ip());
            }
        );
    }
}

9 リダイレクト先の変更

app/Providers/RouteServiceProvider.phpの管理者のリダイレクト先を変更します。

app/Providers/RouteServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Cache\RateLimiting\Limit;
use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\RateLimiter;
use Illuminate\Support\Facades\Route;

class RouteServiceProvider extends ServiceProvider
{
    /**
     * The path to the "home" route for your application.
     *
     * This is used by Laravel authentication to redirect users after login.
     *
     * @var string
     */
    public const HOME = '/';
    public const ADMIN_HOME = '/admin/home';               // 管理者用のリダイレクト先を追加

    /**
     * The controller namespace for the application.
     *
     * When present, controller route declarations will automatically be prefixed with this namespace.
     *
     * @var string|null
     */
     protected $namespace = 'App\Http\Controllers';

    /**
     * Define your route model bindings, pattern filters, etc.
     *
     * @return void
     */
    public function boot()
    {
        $this->configureRateLimiting();

        $this->routes(
            function () {
                Route::prefix('api')
                    ->middleware('api')
                    ->namespace($this->namespace)
                    ->group(base_path('routes/api.php'));

                Route::middleware('web')
                    ->namespace($this->namespace)
                    ->group(base_path('routes/web.php'));
                Route::middleware('web')
                    ->namespace($this->namespace)
                    ->group(base_path('routes/admin.php'));
            }
        );
    }

    /**
     * Configure the rate limiters for the application.
     *
     * @return void
     */
    protected function configureRateLimiting()
    {
        RateLimiter::for(
            'api',
            function (Request $request) {
                return Limit::perMinute(60)->by(optional($request->user())->id ?: $request->ip());
            }
        );
    }
}

管理者向けの認証用のコントローラーも変更します。

app/Http/Controllers/Admin/Auth/VerificationController.php

protected $redirectTo = RouteServiceProvider::ADMIN_HOME;               // HOMEからADMIN_HOMEに変更

app/Http/Controllers/Admin/Auth/ResetPasswordController.php

protected $redirectTo = RouteServiceProvider::ADMIN_HOME;               // HOMEからADMIN_HOMEに変更

app/Http/Controllers/Admin/Auth/RegisterController.php

protected $redirectTo = RouteServiceProvider::ADMIN_HOME;               // HOMEからADMIN_HOMEに変更

app/Http/Controllers/Admin/Auth/LoginController.php

protected $redirectTo = RouteServiceProvider::ADMIN_HOME;               // HOMEからADMIN_HOMEに変更

app/Http/Controllers/Admin/Auth/ConfirmPasswordController.php

protected $redirectTo = RouteServiceProvider::ADMIN_HOME;               // HOMEからADMIN_HOMEに変更

10 管理者の認証画面が閲覧できるようにする

現状だと、管理者画面にアクセスしても一般ユーザー(Users)の管理画面が表示されてしまうので、showRegistrationFormメソッドを追加します。

app/Http/Controllers/Admin/Auth/RegisterController.php

<?php
namespace App\Http\Controllers\Admin\Auth;

use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use App\Models\AdminUser;
use Illuminate\Foundation\Auth\RegistersUsers;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;

class RegisterController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Register Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users as well as their
    | validation and creation. By default this controller uses a trait to
    | provide this functionality without requiring any additional code.
    |
    */
    use RegistersUsers;

    /**
     * Where to redirect users after registration.
     *
     * @var string
     */
    protected $redirectTo = RouteServiceProvider::HOME;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest');
    }

    /**
     * Get a validator for an incoming registration request.
     *
     * @param array $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make(
            $data,
            [
                'name' => ['required', 'string', 'max:255'],
                'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
                'password' => ['required', 'string', 'min:3', 'confirmed']
            ]
        );
    }

    /**
     * Create a new user instance after a valid registration.
     *
     * @param array $data
     * @return \App\Models\AdminUser
     */
    protected function create(array $data)
    {
        return AdminUser::create(  //UserからAdminUserに変更
            [
                'name' => $data['name'],
                'email' => $data['email'],
                'password' => Hash::make($data['password'])
            ]
        );
    }

    //管理者の会員登録画面にアクセスできるように設定追加
　　　　　　　public function showRegistrationForm()
    {
        return view('admin.auth.register');
    }
}

11 会員登録用のコントローラーにガードの設定を追記する

app/Http/Controllers/Admin/Auth/RegisterController.php

<?php
namespace App\Http\Controllers\Admin\Auth;

use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use App\Models\AdminUser;
use Illuminate\Foundation\Auth\RegistersUsers;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;

class RegisterController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Register Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users as well as their
    | validation and creation. By default this controller uses a trait to
    | provide this functionality without requiring any additional code.
    |
    */
    use RegistersUsers;

    /**
     * Where to redirect users after registration.
     *
     * @var string
     */
    protected $redirectTo = RouteServiceProvider::HOME;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest');
    }

    /**
     * Get a validator for an incoming registration request.
     *
     * @param array $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make(
            $data,
            [
                'name' => ['required', 'string', 'max:255'],
                'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
                'password' => ['required', 'string', 'min:3', 'confirmed']
            ]
        );
    }

    /**
     * Create a new user instance after a valid registration.
     *
     * @param array $data
     * @return \App\Models\AdminUser
     */
    protected function create(array $data)
    {
        return AdminUser::create(  //UserからAdminUserに変更
            [
                'name' => $data['name'],
                'email' => $data['email'],
                'password' => Hash::make($data['password'])
            ]
        );
    }

　　　　　　　public function showRegistrationForm()
    {
        return view('admin.auth.register');
    }

    protected function guard()
    {
        return Auth::guard('admin_users');
    }
}

終わりに

マルチ認証機能の実装によって、認証機能の理解がより深まりました。
次は、laravel-adminというライブラリの理解を深めてアウトプットしていきます。