public function rules()
{
....
[['url'], '\backend\components\BannerValidator'],
....
}namespace backend\components;
use Yii;
use yii\validators\Validator;
class BannerValidator extends Validator
{
/**
* @inheritdoc
*/
public function validateAttribute($object, $attribute)
{
$this->addError($object, $attribute, 'errrerer');
}
}<?= $form->field($model, 'url')->textInput(['maxlength' => 255]) ?>public function actionCreate()
{
$model = new Menu();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id]);
} else {
return $this->render('create', [
'model' => $model,
]);
}
}