public function getUrl()
    {
        if($this->storage)
        {
            $this->save();

            return $this->storage->getUrl($this);
        }

        return NULL;
    }
public function getUrl()
    {
        if($this->storage)
        {
            $this->save();

            return $this->storage->getUrl($this);
        }

        return NULL;
    }
public function getUrl ( ) { if ( $ this -> storage ) { $ this -> save ( ) ; return $ this -> storage -> getUrl ( $ this ) ; } return NULL ; }
Returns the URL of the image, if is needed save this image
@return null|string
Returns the URL of the image if is needed save this image