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

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Mouvement extends Model
{
    /**
     * @var string
     */
    protected $table = 'mouvement';

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

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

    protected $dates = ['mouvement_created_at'];

    /**
     * @var array
     */
    protected $fillable = [
        'mouvement_nombre',
        'mouvement_created_at'
    ];

    /**
     * ManyToOne
     * Mouvement -> Coupon
     */
    public function coupon()
    {
        return $this->belongsTo('App\Models\Coupon', 'mouvement_couponId');
    }
}