models.py 文件源码

def generate_qrcode(self):
        url = 'http://'
        url += str(Site.objects.get_current())
        url += '/boites/redirect/'
        url += str(self.api_key)
        img = qrcode.make(url)

        buffer = BytesIO()
        img.save(buffer)

        filename = 'qrcode-%s.png' % str(self.api_key)
        filebuffer = InMemoryUploadedFile(buffer, None, filename,
                                          'image/png', len(buffer.getvalue()), None)
        self.qrcode.save(filename, filebuffer)