Coco File Uploader - Saving the image to a database

/*
    Store an uploaded Image into database using Coco File Uploader
    ==============================================================

    a sample class file ready to be used with Coco Extension (Ajax File Uploader)
    https://github.com/christiansalazar/coco
*/
class MyModel {
    public function onFileUploadedPromoImage($fullName, $userData){
        // STEP 1:
        // determine the Mime Type, you must store it in your database
        // for future usage
        list($w, $h, $xmime) = getimagesize($fullName);
        $mime = '';
        if($xmime == 2)
            $mime = 'image/jpg';
        if($xmime == 3)
            $mime = 'image/png';
        // STEP 2:
        // store the uploaded file into a "LONG BLOB" in your database
        //
        $img = new Image();
        $img->mimetype = $mime;
        $img->alt = '';
        $img->original_width = $w;
        $img->original_height = $h;
        $img->image_size = filesize($fullName);
        $img->picture_position = 0;
        // Read the image data into the LONG_BLOB field
        $f = fopen($fullName,"r");
        $img->image = fread($f,$img->image_size);
        fclose($f);
        if($img->save()){
           // ok is stored
        }
    }
}