public function remove($id)
 {
     if ($this->validate()) {
         StockPrognosisBlue::deleteByCondition("(`date` BETWEEN :dateMin and :dateMax) and (`stock_id` = :stock_id)", [':stock_id' => $id, ':dateMin' => $this->dateMin->format('Y-m-d'), ':dateMax' => $this->dateMax->format('Y-m-d')]);
         return true;
     } else {
         return false;
     }
 }