ldc-jeusselin/app/Models/Employees.php

<?php

namespace App\Models;

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

class Employees extends Model
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'civility',
        'firstname',
        'lastname',
        'job_title',
        'photo',
        'video',
    ];

    public function businessSectors()
    {
        return $this->belongsToMany(BusinessSector::class, 'sectors_employees', 'employee_id', 'business_sector_id');
    }
}