ldc-mesbr-app/app/Calendrier.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Calendrier extends Model
{
    /**
     * @var string
     */
    protected $table = 'calendrier';

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

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

    protected $dates = ['calendrier_startdate', 'calendrier_enddate'];

    /**
     * @var array
     */
    protected $fillable = [
        'calendrier_startdate',
        'calendrier_enddate'
    ];

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