/**
* [uploadFile Upload file.]
* @param [Object] $model [active form model]
* @param [String] $attr [attribute]
* @param string $rootPath [description]
* @return [Object | null] [description]
*/
public function uploadFile(Resource $model, $attr, $rootPath = '')
{
$fileObj = UploadedFile::getInstance($model, $attr);
$model->name = $fileObj->baseName;
$model->size = Common::transByte($fileObj->size);
$model->extension = $fileObj->extension;
$model->status = $this->setStatus($fileObj->extension);
$model->resource_type = $this->setResType($fileObj->extension, $model->course_id);
return $this->upload($model, $attr, $rootPath);
// var_dump($model);die;
// $dir = $this->setDir($fileObj->extension);
// $relaPath = '/' . $dir . '/' . $fileObj->baseName . '.'. time(). '.' . $fileObj->extension;
// $model->$attr = $relaPath;
// if ($fileObj && $model->validate()) {
// $fileObj->saveAs($rootPath . $relaPath);
// return $model;
// }
}