public function actionCreateCode()
{
$model = new Invite();
$model->setScenario('invite');
if ($model->load(Yii::$app->request->post()) && $model->save()) {
Yii::$app->session->setFlash('success', '邀请码生成成功');
return $this->redirect(['invite']);
}
return $this->render('invite', ['model' => $model, 'invite_code' => StringHelper::randomkeys(8)]);
}
