/**
* Creates a new Content model.
* If creation is successful, the browser will be redirected to the 'view' page.
* @return mixed
*/
public function actionCreate()
{
$model = new Content(['scenario' => Content::SCENARIO_ARTICLE]);
if ($model->load(Yii::$app->request->post())) {
//事物匿名函数
$callback = function () use($model) {
$post = Yii::$app->request->post($model->formName());
if ($model->save() && $model->saveTags($post['tags']) && $model->saveCategory($post['category'])) {
return true;
}
throw new ErrorException('更新数据失败');
};
try {
//用数据库事物来保存数据,以免只更新了其中一个
if ($model->getDb()->transaction($callback)) {
//如果两个保存成功,则跳转到视图页面预览新增的文章
return $this->redirect(['view', 'id' => $model->id]);
}
} catch (Exception $e) {
Yii::$app->session->setFlash('error', $e->getMessage());
}
}
return $this->render('create', ['model' => $model]);
}
