Images are not loading through forms

I have a form and I’m trying to load image to DB and to the filesystem like this.


  public function actionCreate()


        $model = new Page();

        if ($model->load(Yii::$app->request->post()))


            $imageName = $model->url;

            $model->file = UploadedFile::getInstance($model, 'file');

            $model->image = 'avatars/'.$imageName.'.'.$model->file->extension;

            if ($model->validate() && $model->save())



                return $this->redirect('page/'.$model->url);




        return $this->render('create', ['model' => $model]);



//it contains only rules

public function rules()


        return [

            [['name', 'position', 'description', 'contact', 'url', 'user_id', 'type', 'layout', 'file'], 'required'],

            [['description'], 'string', 'min' => 10, 'max' => '255'],

            [['user_id'], 'integer'],

            [['name', 'position'], 'string', 'length' => [5, 32]],

            [['contact'], 'url', 'defaultScheme' => 'http'],

            [['file'], 'image', 'extensions' => ['jpg', 'jpeg', 'png'], 'minSize' => 100*100, 'maxSize' => 1000*1000, 'skipOnEmpty' => false],

            [['image'], 'string'],

            [['url'], 'string', 'length' => [5, 12]],

            //[['url'], 'unique'],



But instead of loading the success page, Yii renders the form and says, that file isn’t set, even if it is. What is the problem?


Have you added your form enctype?