Clever Geek Handbook

Problems getting UploadedFile instance in Yii2

I tried to upload a file to the server using a class UploadedFile

, but I cannot get an instance. In my model:

public $arch;
public function rules() {
    return [[['arch'], 'file']];
}

Before $model->arch = file_xxxx.jpg

Controller:

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

Thereafter $model->arch is NULL

View:

$form = ActiveForm::begin(
    ['id' => 'contact-form'],
    ['options' => ['enctype' => 'multipart/form-data']]
);
print $form->field($model, 'arch')->fileInput()->label(false);
+3


source to share


3 answers


You can try to get the file like this:

// View
<?= $form->field($model, 'arch')->fileInput(); ?>

// Controller
$model->arch = UploadedFile::getInstanceByName('arch');


getInstanceByName()

- returns the loaded file according to the specified file input name.

Complete the yii2 File Upload Guide .

+5


source


In my case, this happened because I forgot to add

'options' => ['enctype' => 'multipart/form-data']


for ActiveForm parameters.

+3


source


I faced a similar issue and found that the "S" is missing,

$names = UploadedFile::getInstances($model, 'filename');

and it works.

0


source






More articles:


All Articles