Many To Many Di Laravel Eloquent Relationships — Part 5

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Tahapan Implementasi & Walkthrough Kode

Berikut adalah langkah demi langkah teknis yang dapat Anda ikuti langsung pada codebase Anda:

Tahap 1: Penulisan Kode & Konfigurasi

php artisan make:model Role -m

Tahap 2: Penulisan Kode & Konfigurasi

public function up()
{
    Schema::create('roles', function (Blueprint $table) {
        $table->id();
        $table->string('name');
        $table->timestamps();
    });
}

Tahap 3: Penulisan Kode & Konfigurasi

php artisan make:migration create_user_role_table

Tahap 4: Penulisan Kode & Konfigurasi

public function up()
{
    Schema::create('user_role', function (Blueprint $table) {
        $table->unsignedBigInteger('user_id');
        $table->unsignedBigInteger('role_id');
        $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
        $table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');
    });
}

Tahap 5: Penulisan Kode & Konfigurasi

php artisan migrate

Tahap 6: Penulisan Kode & Konfigurasi

<?php

namespace App\Models;

// use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Laravel\Sanctum\HasApiTokens;

class User extends Authenticatable
{
    use HasApiTokens, HasFactory, Notifiable;

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

    /**
     * The attributes that should be hidden for serialization.
     *
     * @var array<int, string>
     */
    protected $hidden = [
        'password',
        'remember_token',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
    ];
    
    /**
     * phone
     *
     * @return void
     */
    public function phone()
    {
    	return $this->hasOne(Phone::class);
    }
    
    /**
     * roles
     *
     * @return void
     */
    public function roles()
    {
        return $this->belongsToMany(Role::class, 'user_role');
    }
}

Tahap 7: Penulisan Kode & Konfigurasi

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Role extends Model
{
    use HasFactory;

    /**
     * users
     *
     * @return void
     */
    public function users()
    {
        return $this->belongsToMany(User::class, 'user_role');
    }
}

Tahap 8: Penulisan Kode & Konfigurasi

<!doctype html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Eloquent Relationships : Relasi One to One & Many To Many</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.0/dist/css/bootstrap.min.css" rel="stylesheet"
        crossorigin="anonymous">
</head>
<body>
    <div class="container">
        <div class="card mt-5">
            <div class="card-body">
                <h3 class="text-center"><a href="https://santrikoding.com">www.santrikoding.com</a></h3>
                <h5 class="text-center my-4">Laravel Eloquent Relationship : One To One & Many To Many</h5>
                <table class="table table-bordered table-striped">
                    <thead>
                        <tr>
                            <th>Nama User</th>
                            <th>Nomor Telepon</th>
                            <th>Roles</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach($users as $user)
                        <tr>
                            <td>{{ $user->name }}</td>
                            <td>{{ $user->phone->phone }}</td>
                            <td>
                                @foreach ($user->roles()->get() as $role)
                                <button class="btn btn-sm btn-primary me-2">{{ $role->name }}</button>
                                @endforeach
                            </td>
                        </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</body>
</html>

Tahap 9: Penulisan Kode & Konfigurasi

@foreach ($user->roles()->get() as $role)

	//...

@endforeach

Tahap 10: Penulisan Kode & Konfigurasi

@foreach ($role->users()->get() as $user)

	//...

@endforeach

Kesimpulan

Dengan mengikuti langkah-langkah terstruktur di atas, implementasi modul Anda akan jauh lebih rapi, aman dari bug umum, serta siap diskalakan ke lingkungan produksi.

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