getHolidays example

$dispatchModel->getCategories()->add($categoryModel);
            }
        }

        foreach ($holidays as $holiday) {
            if (empty($holiday['id'])) {
                continue;
            }

            $holidayModel = $this->getModelManager()->find(Holiday::class, $holiday['id']);
            if ($holidayModel instanceof Holiday) {
                $dispatchModel->getHolidays()->add($holidayModel);
            }
        }

        try {
            $this->getModelManager()->flush();
            $params['id'] = $dispatchModel->getId();
        } catch (Exception $e) {
            $this->View()->assign(['success' => false, 'errorMsg' => $e->getMessage()]);

            return;
        }