2019-07-20 21:25:16 +00:00
Title: Générer un QRcode dans Django
Date: 2019-07-20 23:13
2021-11-28 01:06:44 +00:00
Modified: 2021-11-28 02:00
2019-07-20 21:25:16 +00:00
Summary: Un générateur de code barre 2D dans une vue Django
Category: Bloc-notes
2021-11-28 01:06:44 +00:00
Tags: django, qrcode, web, dev, python
Status:
2019-07-20 21:25:16 +00:00
2021-11-28 01:06:44 +00:00
🚧 _need to be refreshed_ 🚧
2019-07-20 21:25:16 +00:00
```python
from base64 import b64encode
import io
import qrcode
from django.urls import reverse
from django.views.generic import DetailView
from foobar.models import Foobar
class FoobarDetail(DetailView):
""" Detail view of a Foobar """
model = Foobar
pk_url_kwarg = "foobar_id"
def get_context_data(self, **kwargs):
""" Add a Base64 encoded image (QRcode) containing URL to foobar page """
new_qrcode = qrcode.QRCode(
version=1,
error_correction=qrcode.constants.ERROR_CORRECT_H,
box_size=6,
border=0,
)
url_host = self.request.get_host()
url_protocol = "http://"
if self.request.is_secure():
url_protocol = "https://"
new_qrcode.add_data(
"{protocol}{host}{path}".format(
protocol=url_protocol,
host=url_host,
path=reverse(
"foobar:form",
kwargs={"foobar_id": self.kwargs["foobar_id"]},
),
)
)
new_qrcode.make(fit=True)
qr_image = new_qrcode.make_image()
qr_byte_image = io.BytesIO()
qr_image.save(qr_byte_image, format="PNG")
qr_byte_image = qr_byte_image.getvalue()
qr_b64_image = "data:image/png;base64,{}".format(
b64encode(qr_byte_image).decode()
)
context = super().get_context_data(**kwargs)
context["qrcode"] = qr_b64_image
return context
```
2021-11-28 01:06:44 +00:00
---
Refs:
- Internal `candidate/views.py`
- [`lincolnloop/python-qrcode` ](https://github.com/lincolnloop/python-qrcode )
- [_Generate QR Code In Django Model_ ](https://gilang.chandrasa.com/blog/generate-qr-code-in-django-model/ ) by [_Gilang Chandrasa_ ](https://gilang.chandrasa.com/ ) (16 Nov 2015)
