public function actionIndex() { $validator = new JsonSchemaValidator(); $versions = $validator->getAvailableVersions(); foreach ($versions as $version) { $v = new JsonSchemaValidator($version); $v->buildDefinitions(); $v->saveToDb(); } \Yii::$app->session->addFlash('message', 'Documentation updated'); return $this->redirect(\Yii::$app->request->referrer); }