views.py 文件源码

def getQRCode(request, music_id):
    # generate token - save to database
    # generate URL with token --> this will be a QR code to be displayed
    newMusic = Music.objects.get(id=music_id)
    stringToHash = str(time.time()) + str(newMusic.artist) + str(newMusic.title)
    h = hashlib.sha1()
    h.update(stringToHash)    
    tokenToAppendinURL = str(h.hexdigest())

    # save music query to database 
    newQuery = MusicQuery(query=newMusic, token=tokenToAppendinURL)
    newQuery.save()

    #QR code to be displayed
    # url = pyqrcode.create('http://35.163.220.222:8000/musician/music/' + tokenToAppendinURL)
    # url = pyqrcode.create('http://54.209.248.145:8000/musician/music/' + tokenToAppendinURL)
    # url = pyqrcode.create('http://localhost:8000/musician/music/' + tokenToAppendinURL)
    url = pyqrcode.create(settings.ROOT_URL + '/musician/music/' + tokenToAppendinURL)

    # image_as_str = code.png_as_base64_str(scale=5)
    # html_img = '<img src="data:image/png;base64,{}">'.format(image_as_str)
    strToSave = 'musician/static/images/' + tokenToAppendinURL + '.png'
    url.png(strToSave, scale=6)  
    strToShow = '/static/images/' + tokenToAppendinURL + '.png'
    x = json.dumps({'qrpath': strToShow})
    return JsonResponse(x, safe=False)

# executed on QR code url