I'm trying to get an automated email sent from Python 3.8 containing a QR code (PNG) to a user at the moment of registration (like a event ticket). I managed to send the registration data (full name, date, etc.) but the QR image generated by qrcode package won't show up.
I'm not an advanced programmer so I thought someone here could help me.
Thanks in regards and greetings from Chile!
import qrcode
from io import BytesIO
from PIL import Image
from phonenumber_field.modelfields import PhoneNumberField
from sorl.thumbnail import get_thumbnail
from qrVip.settings import EMAIL_HOST
class GrupoVip(models.Model):
rut = models.CharField(max_length=13, blank=False, null=False,)
nombreCompleto = models.CharField(blank=False, null=False,max_length=200)
email = models.EmailField(blank=False, max_length=254)
vip = models.BooleanField( null=False)
telefono = PhoneNumberField()
autorizado = models.BooleanField( null=False)
codigoQr = models.ImageField(blank=True,null=True, verbose_name="Imagen QR", upload_to='CodigoQrVip/')
evento = models.ForeignKey(evento, verbose_name="Evento", on_delete=models.CASCADE)
embajador = models.ForeignKey(User, verbose_name="Embajador", on_delete=models.CASCADE,null=True)
def __str__(self):
txt = "{0} | {1} "
return txt.format(self.rut.title(),self.nombreCompleto.title())
@property
def qr_preview(self):
if self.codigoQr:
_img = get_thumbnail(self.codigoQr,
'350x150',
upscale=False,
crop=False,
quality=100)
return format_html('<img src="{}" width="{}" height="{}">'.format(_img.url, _img.width, _img.height))
return ""
def save(self, *args, **kwargs):
qr_image = qrcode.make(f'http://192.168.18.2:8000/admin/adminVip/grupovip/?q={self.rut}&evento__id__exact={self.evento}')
qr_offset = Image.new('RGB',(1000,1000),'white')
qr_offset.paste(qr_image)
files_name = f'{self.id}/{self.rut}/{self.nombreCompleto}-qr.png'
stream = BytesIO()
qr_offset.save(stream, 'PNG')
self.codigoQr.save(files_name, File(stream), save=False)
qr_offset.close()
##########################################################################
# send_mail('Terminamos el Proyecto BB',
# f'Aqui desde mi casita mandandote este mensaje bbsote {self.codigoQr}',
# EMAIL_HOST_USER,
# [self.email],
# fail_silently=False,
# )
########################################################
# subject = 'Django sending email'
# body_html = '''
# <html>
# <body>
# <img src="cid:image" />
# </body>
# </html>
# '''
# msg = EmailMultiAlternatives(
# subject,
# body_html,
# from_email=EMAIL_HOST_USER,
# to=[self.email]
# )
# img_dir = '/media/'
# image = f'CodigoQrVip/None/{self.rut}/{self.nombreCompleto.replace(" ","_")}-qr.png'
# file_path = os.path.join(img_dir, image)
# with open(file_path,'r') as f:
# img = MIMEImage(f.read())
# img.add_header('Content-ID', '<{name}>'.format(name=image))
# img.add_header('Content-Disposition', 'inline', filename=image)
# msg.attach(img)
###################################################################
html_content = render_to_string("emailQrListo.html",{'title':'test email','grupovip':GrupoVip.objects.all()} )
text_content = strip_tags(html_content)
env_email = EmailMultiAlternatives(
#subject
"testing",
#contenido
text_content,
#from
EMAIL_HOST_USER,
#rec list
[self.email]
)
env_email.attach_alternative(html_content, "image/html")
env_email.send()
super().save(*args, **kwargs)
EDIT: I'm trying to renderize that image from an html template. Here's the code:
<!DOCTYPE html> {% load static %}
<html lang="en">
<head>
<title>{{title}}</title>
</head>
<body>
<div class='container'>
<h2>LISTA MURCANO</h2>
<img src="cid:{{grupovip.codigoQr}}">
</body>
</html>
