web_server.py 文件源码

def event_image(event_id):
    session = Session()
    event = (session.query(Event)
                    .filter(Event.event_id == event_id)
                    .limit(1)).first()
    if event is not None:
        img = os.path.join(app.config['EARTHQUAKES'],
                           event_id,
                           'image.png')

    else:
        img = app.send_static_file('sc_logo.png')

    Session.remove()
    return send_file(img, mimetype='image/gif')