file uploader class version

@app.route('/upload', methods=['GET', 'POST'])
@flask_login.login_required
def upload_file():
    if request.method == 'POST':
        uid = getUserIdFromEmail(flask_login.current_user.id)
        imgfile = request.files['photo']
        caption = request.form.get('caption')
        print(caption)
        photo_data = base64.standard_b64encode(imgfile.read())
        cursor = conn.cursor()
        cursor.execute(
            "INSERT INTO Pictures (imgdata, user_id, caption) VALUES ('{0}', '{1}', '{2}' )".format(photo_data, uid,
                                                                                                    caption))
        conn.commit()
        return render_template('hello.html', name=flask_login.current_user.id, message='Photo uploaded!',
                               photos=getUsersPhotos(uid))
    # The method is GET so we return a  HTML form to upload the a photo.
    else:
        return render_template('upload.html')