public function actionCreate()
{
$model = new Category();
$roots = ArrayHelper::map(Category::find()->roots()->all(), 'name', 'name');
if ($model->load(\Yii::$app->request->post())) {
$post = \Yii::$app->request->post('Category');
if ($post['parent'] == null) {
$parent = new Category(['name' => $post['name']]);
$parent->makeRoot();
} else {
$parent = Category::findOne(['name' => $post['parent']]);
$child = new Category(['name' => $post['name']]);
$child->appendTo($parent);
}
} else {
return $this->render('create', ['model' => $model, 'roots' => $roots]);
}
}
