ldc-mesbr-app/app/Notification.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Notification extends Model
{
    /**
     * @var string
     */
    protected $table = 'notification';

    /**
     * @var string
     */
    protected $primaryKey = 'notif_id';

    /**
     * @var boolean
     */
    public $timestamps = false;

    /**
     * ManyToOne
     * Notification -> Campagne
     */
    public function campagne()
    {
        return $this->belongsTo('App\Campagne', 'notif_campId');
    }
}