AuthServiceProvider.php

<?php

namespace App\Providers;

use App\Policies\UserPolicy;
use App\User;
use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
use Illuminate\Support\Facades\Gate;

/**
 * Class AuthServiceProvider
 *
 * @package App\Providers
 */
class AuthServiceProvider extends ServiceProvider
{
    /** @var array $policies The policy mappings for the application. */
    protected $policies = [
        UserPolicy::class => User::class,
        \App\Policies\SignaturePolicy::class => \App\Domain\Petition\Models\Signature::class,
    ];

    public function boot(): void
    {
        $this->registerPolicies();

        // Implicitly grant "Super Admin" role all permissions
        // This works in the app by using gate-related functions like auth()->user->can() and @can()

        // Gate::before(function ($user, $ability) {
        //     return $user->hasRole('Super Admin') ? true : null;
        // });
    }
}

Signature.php

<?php

namespace App\Domain\Petition\Models;

use App\Domain\Petition\Models\Presenters\SetAttributePresenter;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

/**
 * Class Signature
 *
 * @package App\Domain\Petition\Models
 */
class Signature extends Model
{
    use SetAttributePresenter;

    /**
     * Guarded fields for the signature table.
     *
     * @return array
     */
    protected $guarded = ['id'];

    public function postal(): BelongsTo
    {
        return $this->belongsTo(Postal::class);
    }

    public function getNameAttribute(): string
    {
        return ucwords($this->voornaam . ' ' . $this->achternaam);
    }
}

SignaturePolicy.php

<?php

namespace App\Policies;

use App\Domain\Petition\Models\Signature;
use App\Domain\Users\Enums\UserRoles;
use App\User;
use Illuminate\Auth\Access\HandlesAuthorization;


class SignaturePolicy
{
    use HandlesAuthorization;

    public function delete(User $user, Signature $signature): bool
    {
        return $user->hasRole(UserRoles::WEBMASTER);
    }
}

User.php

<?php

namespace App;

use App\Domain\Users\Models\Presenters\SetAttributePresenter;
use App\Domain\Users\Models\Presenters\GetAttributePresenter;
use App\Domain\Users\Models\Presenters\UrlPresenter;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Illuminate\Support\Facades\Cache;
use Spatie\Permission\Traits\HasRoles;
use Cog\Contracts\Ban\Bannable as BannableContract;
use Cog\Laravel\Ban\Traits\Bannable;

/**
 * Class User
 *
 * @package App
 */
class User extends Authenticatable implements BannableContract
{
    use Bannable;
    use Notifiable;
    use HasRoles;
    use SetAttributePresenter;
    use GetAttributePresenter;

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

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

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

    /**
     * Method for leveraging a better URI strategy
     *
     * @see https://laravel-news.com/leverage-eloquent-to-prepare-your-urls
     * @return UrlPresenter
     */
    public function getUrlAttribute()
    {
        return new UrlPresenter($this);
    }



    public function isOnline(): bool
    {
        return Cache::has('user-is-online-'.$this->id);
    }
}

view.blade.php

 <div class="container-fluid pb-3">
        <div class="card border-0 mb-0 shadow-sm card-body">
            <div class="table-responsive">
                <table class="table table-sm mb-0 table-hover">
                    <thead>
                        <tr>
                            <th class="border-top-0" scope="col">Stad</th>
                            <th class="border-top-0" scope="col">Naam</th>
                            <th class="border-top-0" scope="col">Email adres</th>
                            <th class="border-top-0" scope="col">Getekend op</th>
                            <th class="border-top-0" scope="col">&nbsp;</th> {{-- Column specified only for the functions --}}
                        </tr>
                    </thead>
                    <tbody>
                        @forelse($signatures as $signature) {{-- Loop trough the signatures --}}
                            <tr>
                                <td class="text-secondary font-weight-bolder">{{ $signature->postal->code }} {{ $signature->postal->city->first()->name }}</td>
                                <td>{{ $signature->name }}</td>
                                <td>{{ $signature->email }}</td>
                                <td>
                                    {{ $signature->created_at->format('d/m/Y H:i:s') }}
                                    <span class="small text-muted">({{ $signature->created_at->diffForHumans() }})</span>
                                </td>
                                <td> {{-- Options --}}
                                    <span class="float-right">
                                        @can ('delete', $signature) {{-- Determine whether the user can delete the signature or not --}}
                                            <a href="" class="text-danger text-decoration-none">
                                                <i class="fa fas fa-trash-alt"></i>
                                            </a>
                                        @endcan
                                    </span>
                                </td> {{-- // Options --}}
                            </tr>
                        @empty {{-- No signatures are found in the application --}}
                            <tr>
                                <td class="text-muted" colspan="5">
                                    Er zijn momenteel geen handtekeningen gevonden in {{ config('app.name') }}
                                </td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>