Call to a member function saveAs() on null

[fikilifadly]

Hello im new in here

i got stuck on my controller content upload

public function actionCreate()

{


    $model = new Karyawan();





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


        {





        //get the instance of the upload file


        $imageName = $model->nama_karyawan;


       $uploadedFile=UploadedFile::getInstance($model,'uploadedFile');


        $model->file->saveAs('images/'.$imageName.'.'.$model->file->extension );





        // save the path in the db collumn


        $model->foto = 'images/'.$imageName.'.'.$model->file->extension;


        $model->save();





    return $this->redirect(['view', 'id' => $model->id_karyawan]);





    } else {


        return $this->render('create', [


            'model' => $model,


        ]);


    }


}

Error message

$model->file->saveAs(‘images/’.$imageName.’.’.$model->file->extension );

please i need help

[mdomba (Maurizio Domba Cerin)]

[size=2]UploadedFile::getInstance() can return "null" if there is no file uploaded so you need to check for that possibility.[/size]

[size=2]

[/size]

[size=2]btw. is this for Yii1.1.x (you posted here) or 2.0?[/size]

[fikilifadly]

its still error, i already make sure if i choose the file and then error message is message is

Undefined variable: imageName

its yii2 advanced anyway.

[mdomba (Maurizio Domba Cerin)]

well, by your error message it does nothing to do with the uploaded file… but with the $imageName variable… debug it to see why it’s not set.

[color="#008000"]/* NOTE: moved to Yii2 section */[/color]