/**
* Finds the CategoryTag model based on its primary key value.
* If the model is not found, a 404 HTTP exception will be thrown.
* @param integer $category_id
* @param integer $tag_id
* @return CategoryTag the loaded model
* @throws NotFoundHttpException if the model cannot be found
*/
protected function findModel($category_id, $tag_id)
{
if (($model = CategoryTag::findOne(['category_id' => $category_id, 'tag_id' => $tag_id])) !== null) {
return $model;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
