public function actionAdd()
{
$model = new Category();
if ($model->load(Yii::$app->request->post())) {
if ($model->save()) {
Yii::$app->session->setFlash('success', '成功添加分类“' . $model->name . '”。');
return $this->redirect(['index']);
} else {
Yii::$app->session->setFlash('danger', '分类添加失败。');
}
}
return $this->render('form', ['model' => $model]);
}