public function init()
{
echo Html::activeHiddenInput($this->model, $this->attribute, $this->options);
echo Html::error($this->model, $this->attribute, $this->options);
$id = Html::getInputId($this->model, $this->attribute);
echo FileInput::widget(['name' => 'file', 'options' => ['accept' => 'image/*', 'multiple' => false], 'pluginEvents' => ['fileuploaded' => 'function(event, data, previewId, index) {
$("#' . $id . '").val(data.response.url);
}'], 'pluginOptions' => ['initialPreview' => $this->model->{$this->attribute} ? [Html::img($this->model->{$this->attribute}, ['class' => 'file-preview-image'])] : false, 'maxFileCount' => 1, 'minFileCount' => 1, 'previewFileType' => 'image', 'multiple' => false, 'showPreview' => true, 'showUploadedThumbs' => false, 'uploadUrl' => \yii\helpers\Url::to(['/system/image/upload'])]]);
parent::init();
}
