    public function actionFlush()
    {
        $this->forcePostRequest();
        Logging::model()->deleteAll();
        $this->redirect($this->createUrl('index'));
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.