サンプルコードで学ぶLaravelのメール送信機能

$ php artisan make:auth

$ php artisan make:model Models/Comment -m -c

$ mkdir app/Models
$ mv app/User.php app/Models/User.php

namespace App\Models;

'providers' => [
    'users' => [
        'driver' => 'eloquent',
        'model' => App\Models\User::class,
    ],
],

use App\Models\User;

Route::group(['middleware' => 'auth'], function () {
    // 入力フォーム画面を返却するルート
    Route::get('/comment', 'CommentController@showForm')->name('comment');
    // 入力を受け付けるルート
    Route::post('/comment', 'CommentController@create');
    // 入力後にリダイレクトする完了画面のルート
    Route::get('/comment/thanks', 'CommentController@thanks')->name('comment.thanks');
});

<?php

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

class CreateCommentsTable extends Migration
{
    public function up()
    {
        Schema::create('comments', function (Blueprint $table) {
            $table->increments('id');
            $table->unsignedInteger('user_id');
            $table->text('body');
            $table->timestamps();
        });
    }

    public function down()
    {
        Schema::dropIfExists('comments');
    }
}

$ php artisan migrate

<?php

namespace App\Http\Controllers;

use App\Models\Comment;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class CommentController extends Controller
{
    // 入力フォーム画面
    public function showForm()
    {
        return view('comments.form');
    }

    // 入力を受け付ける
    public function create(Request $request)
    {
        $user = Auth::user();
        $comment = new Comment(['body' => $request->comment]);

        $user->comments()->save($comment);

        // TODO ここでメールを送る

        return redirect()->route('comment.thanks');
    }

    // 入力後にリダイレクトする完了画面
    public function thanks()
    {
        $comment = Auth::user()
            ->comments()
            ->orderBy('id', 'desc')
            ->first();

        return view('comments.thanks', compact('comment'));
    }
}

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Comment extends Model
{
    protected $fillable = [
        'body',
    ];
}

public function comments()
{
    return $this->hasMany('App\Models\Comment');
}

@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-body">
            <form method="POST" action="{{ route('comment') }}">
              @csrf

              <div class="form-group">
                <label for="comment">コメントください</label>
                <textarea class="form-control" name="comment" id="comment" required></textarea>
              </div>

              <div class="text-right">
                <button type="submit" class="btn btn-primary">送信</button>
              </div>
            </form>
          </div>
        </div>
      </div>
    </div>
  </div>
@endsection

@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-body">
            <p class="card-title">あなたのコメント</p>
            <p class="card-text">{{ $comment->body }}</p>
          </div>
        </div>
      </div>
    </div>
  </div>
@endsection

MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=xxxxxxxxxxxxxx
MAIL_PASSWORD=xxxxxxxxxxxxxx
MAIL_ENCRYPTION=null
MAIL_FROM_ADDRESS=sample@email.com
MAIL_FROM_NAME=サンプルアプリ

$ php artisan make:mail CommentPosted

<?php

namespace App\Mail;

use App\Models\Comment;
use App\Models\User;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Queue\ShouldQueue;

class CommentPosted extends Mailable
{
    use Queueable, SerializesModels;

    public $user;
    public $comment;

    public function __construct(User $user, Comment $comment)
    {
        $this->user = $user;
        $this->comment = $comment;
    }

    public function build()
    {
        return $this
            ->subject('コメントありがとうございます')
            ->view('emails.comments.posted');
    }
}

'from' => [
    'address' => env('MAIL_FROM_ADDRESS', 'hello@example.com'),
    'name' => env('MAIL_FROM_NAME', 'Example'),
],

<p>
  {{ $user->name }} さん、<br>
  コメントありがとうございます！
</p>
<p>
  あなたのコメント：<br>
  『{{ $comment->body }}』
</p>

// 追加
use Illuminate\Support\Facades\Mail;

class CommentController extends Controller
{
    // 中略

    public function create(Request $request)
    {
        $user = Auth::user();
        $comment = new Comment(['body' => $request->comment]);

        $user->comments()->save($comment);

        // 追加
        Mail::to($user)->send(new CommentPosted($user, $comment));

        return redirect()->route('comment.thanks');
    }

    // 中略
}

QUEUE_CONNECTION=database

$ php artisan queue:table
$ php artisan migrate

Mail::to($user)->queue(new CommentPosted($user, $comment));

$ php artisan queue:work

$ brew install supervisor

$ mkdir -p /usr/local/etc/supervisor/conf.d

$ echo_supervisord_conf > /usr/local/etc/supervisor/supervisord.conf
$ vi /usr/local/etc/supervisor/supervisord.conf

[include]
files = /usr/local/etc/supervisor/conf.d/*.conf

$ vi /usr/local/etc/supervisor/conf.d/laravel-worker.conf

[program:laravel-worker]
process_name=%(program_name)s_%(process_num)02d
command=php /プロジェクトまでのパス/artisan queue:work
autostart=true
autorestart=true
user=実行ユーザー名（ログインユーザーで良いかと）
numprocs=3
redirect_stderr=true
stdout_logfile=/プロジェクトまでのパス/worker.log

$ supervisord -c /usr/local/etc/supervisor/supervisord.conf
$ supervisorctl start laravel-worker:*

$ supervisorctl status all
laravel-worker:laravel-worker_00   RUNNING   pid 80202, uptime 0:04:08
laravel-worker:laravel-worker_01   RUNNING   pid 80203, uptime 0:04:08
laravel-worker:laravel-worker_02   RUNNING   pid 80204, uptime 0:04:08

// artisan コマンドを使っている場合
$ php artisan queue:restart
// Supervisor を使っている場合
$ supervisorctl restart laravel-worker:*

public function build()
{
    return $this
        ->subject('コメントありがとうございます')
        ->view('emails.comments.posted')
        ->attach(storage_path('cat.gif'));
}

<p>
  {{ $user->name }} さん、<br>
  コメントありがとうございます！
</p>
<p>
  あなたのコメント：<br>
  『{{ $comment->body }}』
</p>
<p>
  <img src="{{ $message->embed(storage_path('cat.gif')) }}">
</p>