ldc-mesbr-app/app/Models/Site.php

<?php

namespace App\Models;

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

class Site extends Model
{
    use HasFactory;

    /**
     * @var string
     */

    protected $table = 'site';

    /**
     * @var string
     */

    protected $primaryKey = 'id';

    /**
     * @var string
     */

    protected $keyType = 'string';

    /**
     * @var boolean
     */

    public $timestamps = false;

    /**
     * @var array
     */

    protected $fillable = ['site_nom', 'site_logo', 'site_contact', 'site_rcs', 'site_libelle'];

    /**
     * OneToMany
     * Site -> Campagne
     */
    public function campagnes()
    {
        return $this->hasMany(\App\Models\Campagne::class, 'camp_siteId', 'site_id');
    }

    /**
     * OneToMany
     * Site -> Contact
     */
    public function contacts()
    {
        return $this->hasMany(\App\Models\Contact::class, 'contact_siteId', 'site_id');
    }

    /**
     * The users that belong to the site.
     */
    public function users()
    {
        return $this->belongsToMany(\App\Models\User::class, 'site_user', 'site_id', 'user_id');
    }

     /**
      * OneToMany
      * Site -> Coupon
      */
    public function coupons()
    {
        return $this->hasMany(\App\Models\Coupon::class, 'coupon_siteId', 'id');
    }

    /**
     * @return string
     */
    public function __toString(): string
    {
        return $this->site_id . " : " . $this->site_nom;
    }
}