/**
  * getById function. Get Recipe Object by id in array. In fact it is only to use a more modern and convenient way to access data. For the sake of coherence !
  *
  * @access public
  * @static
  * @param int id - $id
  * @return Recipe Object
  */
 public static function getById($id)
 {
     if (Category::getDataAt($id)) {
         return new Category($id);
     }
     return null;
 }