/**
* @inheritdoc
*/
public function init()
{
parent::init();
$this->_fileKey = $this->attribute;
if ($this->thumbAttribute !== null) {
$this->_thumbKey = $this->thumbAttribute;
}
}
/**
* @inheritdoc
*/
protected function getWidgetData()
{
return array_merge(parent::getWidgetData(), ['data-max-count' => $this->maxCount, 'data-msg-max-count' => $this->messageMaxCount]);
}