ldc-dam/app/Models/Etiquette.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Etiquette extends Model
{
	/**
	 * The primary key associated with the table.
	 *
	 * @var string
	 */
	protected $primaryKey = 'etiquette_id';

	/**
	* Get the medias for the etiquette.
	*/
   public function medias()
   {
	   return $this->hasMany('App\Models\Media');
   }
}