/** * Finds the City model based on its primary key value. * If the model is not found, a 404 HTTP exception will be thrown. * * @param integer $id * @return City the loaded model * @throws NotFoundHttpException if the model cannot be found */ protected function findCity($id) { if (($model = City::findOne($id)) !== null) { return $model; } else { throw new NotFoundHttpException('The requested page does not exist.'); } }
/** * @inheritdoc */ public function validateCity() { if ($this->city_id !== null) { $city = City::findOne($this->city_id); if ($city === null) { $this->addError('city_id', Yii::t('location', 'City with id {[id]} doesn\'t exist', ['id' => $this->city_id])); return false; } $this->region_id = $city->region_id; } return true; }