File Upload Validation Broke

I upload single files also, try this simplified method in some controller:

PHP Code:

public function testing()
{
        if($this->request->getPost('save')) {
            $file = $this->request->getFile('img_path');
            if ($file->isValid() && !$file->hasMoved())
            {
                $originalName = $file->getName();
                $extension = $file->getExtension();
                $source = $file->getTempName();
                $type = $file->getMimeType();
                $random = $file->getRandomName();
                $file->move(WRITEPATH.'uploads', $random);
            }
        }

        helper('form');
        echo form_open_multipart();
        echo form_label('Upload file', 'img_path');
        echo form_upload('img_path', set_value('img_path'), 'id="img_path"');
        echo form_submit('save', 'Save the file');
        echo form_close();
} 


You can see things I made with codeigniter here: itart.pro its not overly impressive as I have very little time to learn.